GA-EP31-DS3L
GA-EP31-DS3L
LGA775 socket motherboard for Intel® CoreTM processor family/
Intel® Pentium® processor family/Intel® Celeron® processor family
User's Manual
Rev. 2102
12ME-EP31DS3L-2102R
Motherboard
GA-EP31-DS3L
Aug. 4, 2008
Motherboard
GA-EP31-DS3L
Aug. 4, 2008
Copyright
© 2009 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specifications and features in this manual may be made by GIGABYTE without prior
notice. No part of this manual may be reproduced, copied, translated, transmitted, or published in any
form or by any means without GIGABYTE's prior written permission.
Documentation Classifications
In order to assist in the use of this product, GIGABYTE provides the following types of documentations:
 For detailed product information, carefully read the User's Manual.
 For instructions on how to use GIGABYTE's unique features, read or download the information
on/from the Support&Downloads\Motherboard\Technology Guide page on our website.
For product-related information, check on our website at:
http://www.gigabyte.com.tw
Identifying Your Motherboard Revision
The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0"
means the revision of the motherboard is 1.0. Check your motherboard revision before updating
motherboard BIOS, drivers, or when looking for technical information.
Example:
Table of Contents
Box Contents ................................................................................................................. 6
Optional Items................................................................................................................. 6
GA-EP31-DS3L Motherboard Layout ............................................................................ 7
Block Diagram................................................................................................................ 8
Chapter 1 Hardware Installation .................................................................................... 9
1-1
1-2
Installation Precautions ..................................................................................... 9
Product Specifications .................................................................................... 10
1-3
Installing the CPU and CPU Cooler .............................................................. 13
1-3-1
1-3-2
1-4
Installing the CPU ................................................................................................ 13
Installing the CPU Cooler ................................................................................... 15
Installing the Memory ..................................................................................... 16
1-4-1
1-4-2
Dual Channel Memory Configuration ................................................................ 16
Installing a Memory ............................................................................................. 17
1-5
1-6
Installing an Expansion Card ......................................................................... 18
Back Panel Connectors ................................................................................. 19
1-7
Internal Connectors ........................................................................................ 21
Chapter 2 BIOS Setup ................................................................................................. 31
2-1
2-2
2-3
Startup Screen ................................................................................................ 32
The Main Menu .............................................................................................. 33
Standard CMOS Features ............................................................................. 35
2-4
2-5
2-6
2-7
Advanced BIOS Features .............................................................................. 37
Integrated Peripherals ..................................................................................... 39
Power Management Setup ............................................................................. 42
PnP/PCI Configurations ................................................................................. 44
2-8
2-9
2-10
2-11
PC Health Status ........................................................................................... 45
MB Intelligent Tweaker(M.I.T.) ....................................................................... 47
Load Fail-Safe Defaults ................................................................................... 50
Load Optimized Defaults ................................................................................. 50
2-12
2-13
2-14
Set Supervisor/User Password ..................................................................... 51
Save & Exit Setup ......................................................................................... 52
Exit Without Saving ....................................................................................... 52
-4-
Chapter 3 Drivers Installation ...................................................................................... 53
3-1
Installing Chipset Drivers ............................................................................... 53
3-2
3-3
3-4
3-5
Application Software ....................................................................................... 54
Technical Manuals .......................................................................................... 54
Contact ........................................................................................................... 55
System ........................................................................................................... 55
3-6
Download Center ............................................................................................ 56
Chapter 4 Unique Features ......................................................................................... 57
4-1
4-2
Xpress Recovery2 ......................................................................................... 57
BIOS Update Utilities ..................................................................................... 62
4-2-1
4-2-2
Updating the BIOS with the Q-Flash Utility ...................................................... 62
Updating the BIOS with the @BIOS Utility ....................................................... 65
4-3
EasyTune 6 .................................................................................................... 66
4-4
Dynamic Energy Saver Advanced ................................................................ 67
Chapter 5 Appendix .................................................................................................... 69
5-1
Configuring Audio Input and Output ................................................................. 69
5-1-1
5-1-2
5-1-3
5-1-4
5-2
Troubleshooting ............................................................................................... 76
5-2-1
5-2-2
5-3
Configuring 2/4/5.1/7.1-Channel Audio ............................................................ 69
Installing the S/PDIF In Cable (Optional) ........................................................... 71
Configuring Microphone Recording ................................................................... 73
Using the Sound Recorder ................................................................................. 75
Frequently Asked Questions ............................................................................. 76
Troubleshooting Procedure ................................................................................ 77
Regulatory Statements ................................................................................... 79
-5-
Box Contents
GA-EP31-DS3L motherboard
Motherboard driver disk
User's Manual
One IDE cable
Two SATA 3Gb/s cables
I/O Shield
• The box contents above are for reference only and the actual items shall depend on product package you obtain.
The box contents are subject to change without notice.
• The motherboard image is for reference only.
Optional Items
Floppy disk drive cable (Part No. 12CF1-1FD001-7*R)
2-port USB 2.0 bracket (Part No. 12CR1-1UB030-5*R)
S/PDIF in cable (Part No. 12CR1-1SPDIN-0*R)
2-port SATA power cable (Part No. 12CF1-2SERPW-0*R)
-6-
GA-EP31-DS3L Motherboard Layout
CPU_FAN
KB_MS
ATX_12V
COAXIAL
PHASE LED
LGA775
PWR_FAN
CLR_CMOS
PCIEX1_1
SPDIF_O
CODEC
ATX
PCIEX1_2
DDR2_4
PCIEX1_3
PCIEX16
DDR2_3
RTL8111C
SYS_FAN1
DDR2_2
CD_IN
AUDIO
Intel ® P31/G31
DDR2_1
F_AUDIO
LAN
USB
USB
GA-EP31-DS3L
COMA
LPT
OPTICAL
Intel ® ICH7
BAT
SPDIF_I
PCI1
IT8718
SATA2_0 SATA2_2
SATA2_1 SATA2_3
IDE
PCI3
B_BIOS
CI
SYS_FAN2
PCI2
M_BIOS
FDD
F_PANEL
F_USB1 F_USB2 PWR_LED
-7-
Block Diagram
PCIe CLK
(100 MHz)
CPU CLK+/(333/266/200 MHz)
LGA775
Processor
1 PCI Express x16
PCI Express x16
Host
Interface
Dual Channel Memory
Intel® P31/G31
LAN
MCH CLK
(333/266/200 MHz)
RJ45
RTL
8111C
Dual BIOS
x1
PCI Express Bus
3 PCI Express x1
DDR2 1066/800/667 MHz
x1
x1
ATA-100/66/33
IDE Channel
x1
4 SATA 3Gb/s
Intel® ICH7
8 USB Ports
PCIe CLK
(100 MHz)
PCI Bus
Floppy
IT8718
CODEC
LPT Port
COM Port
3 PCI
PCI CLK
(33 MHz)
-8-
SPDIF In
SPDIF Out
MIC
Line-Out
Line-In
Surround Speaker Out
Center/Subwoofer Speaker Out
Side Speaker Out
PS/2 KB/Mouse
Chapter 1 Hardware Installation
1-1
Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can become
damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read the user's
manual and follow these procedures:
• Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
• Always remove the AC power by unplugging the power cord from the power outlet before
•
•
•
•
•
•
•
•
•
•
•
•
•
installing or removing the motherboard or other hardware components.
When connecting hardware components to the internal connectors on the motherboard,
make sure they are connected tightly and securely.
When handling the motherboard, avoid touching any metal leads or connectors.
It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic
components such as a motherboard, CPU or memory. If you do not have an ESD wrist strap,
keep your hands dry and first touch a metal object to eliminate static electricity.
Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
Before unplugging the power supply cable from the motherboard, make sure the power supply
has been turned off.
Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
Before using the product, please verify that all cables and power connectors of your hardware
components are connected.
To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
Do not place the computer system on an uneven surface.
Do not place the computer system in a high-temperature environment.
Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certified computer technician.
-9-
Hardware Installation
1-2
Product Specifications
CPU
Š
Support for an Intel® Core 2 Extreme processor/
Intel ® Core 2 Quad processor/Intel ® Core 2 Duo processor/
Intel® Pentium ® processor Extreme Edition/Intel® Pentium ® D processor/
Intel® Pentium ® 4 processor Extreme Edition/Intel® Pentium® 4 processor/
Intel ® Celeron ® processor in the LGA 775 package
(Go to GIGABYTE's website for the latest CPU support list.)
L2 cache varies with CPU
1333/1066/800 MHz FSB
North Bridge: Intel ® P31/G31 Express Chipset
South Bridge: Intel ® ICH7
4 x 1.8V DDR2 DIMM sockets supporting up to 4 GB of system memory (Note 1)
Dual channel memory architecture
Support for DDR2 1066/800/667 MHz memory modules
(Go to GIGABYTE's website for the latest memory support list.)
Realtek ALC888 codec
High Definition Audio
2/4/5.1/7.1-channel
Support for S/PDIF In/Out
Support for CD In
RTL 8111C chip (10/100/1000 Mbit)
1 x PCI Express x16 slot
3 x PCI Express x1 slots
3 x PCI slots
South Bridge:
- 1 x IDE connector supporting ATA-100/66/33 and up to 2 IDE devices
- 4 x SATA 3Gb/s connectors supporting up to 4 SATA 3Gb/s devices
iTE IT8718 chip:
- 1 x floppy disk drive connector supporting up to 1 floppy disk drive
Integrated in the South Bridge
Up to 8 USB 2.0/1.1 ports (4 on the back panel, 4 via the USB brackets
connected to the internal USB headers)
TM
TM
Front Side Bus
Chipset
Memory
Audio
LAN
Expansion Slots
Storage Interface
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
USB
Š
Š
GA-EP31-DS3L Motherboard
TM
- 10 -
Internal Connectors
Back Panel
Connectors
I/O Controller
Hardware Monitor
BIOS
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
1 x 24-pin ATX main power connector
1 x 4-pin ATX 12V power connector
1 x floppy disk drive connector
1 x IDE connector
4 x SATA 3Gb/s connectors
1 x CPU fan header
2 x system fan headers
1 x power fan header
1 x front panel header
1 x front panel audio header
1 x CD In connector
1 x S/PDIF In header
1 x S/PDIF Out header
2 x USB 2.0/1.1 headers
1 x chassis intrusion header
1 x power LED header
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x parallel port
1 x serial port
1 x coaxial S/PDIF Out connector
1 x optical S/PDIF Out connector
4 x USB 2.0/1.1 ports
1 x RJ-45 port
6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/
Side Speaker Out/Line In/Line Out/Microphone)
iTE IT8718 chip
System voltage detection
CPU/System temperature detection
CPU/System/Power fan speed detection
CPU overheating warning
CPU/System/Power fan fail warning
CPU/System fan speed control (Note 2)
2 x 8 Mbit flash
Use of licensed AWARD BIOS
Support for DualBIOSTM
PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
- 11 -
Hardware Installation
Unique Features
Bundled Software
Operating System
Form Factor
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Support for @BIOS
Support for Download Center
Support for Q-Flash
Support for EasyTune (Note 3)
Support for Xpress Install
Support for Xpress Recovery2
Support for Virtual Dual BIOS
Support for Dynamic Energy Saver Advanced
Norton Internet Security (OEM version)
Support for Microsoft® Windows® Vista/XP
ATX Form Factor; 30.5cm x 21.0cm
(Note 4)
(Note 1) Based on standard PC architecture, a certain amount of memory is reserved for system
usage and therefore the actual memory size is less than the stated amount. For example,
4 GB of memory size will instead be shown as 3.xx GB during system startup.
(Note 2) Whether the CPU/system fan speed control function is supported will depend on the CPU/
system cooler you install.
(Note 3) Available functions in EasyTune may differ by motherboard model.
(Note 4) Due to the hardware limitation, you must install the Intel® Core 2 Extreme/ Core 2 Quad/
Core 2 Duo/ Pentium Dual-Core/ Celeron Dual-Core/ Celeron 400 Series CPU to enable
support for Dynamic Energy Saver.
TM
TM
GA-EP31-DS3L Motherboard
- 12 -
TM
1-3
Installing the CPU and CPU Cooler
Read the following guidelines before you begin to install the CPU:
• Make sure that the motherboard supports the CPU.
(Go to GIGABYTE's website for the latest CPU support list.)
• Always turn off the computer and unplug the power cord from the power outlet before
installing the CPU to prevent hardware damage.
• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly. (Or you
may locate the notches on both sides of the CPU and alignment keys on the CPU socket.)
• Apply an even and thin layer of thermal grease on the surface of the CPU.
• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and
damage of the CPU may occur.
• Set the CPU host frequency in accordance with the CPU specifications. It is not recommended that the system bus frequency be set beyond hardware specifications since it
does not meet the standard requirements for the peripherals. If you wish to set the frequency
beyond the standard specifications, please do so according to your hardware specifications
including the CPU, graphics card, memory, hard drive, etc.
1-3-1 Installing the CPU
A. Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
LGA775 CPU Socket
Alignment Key
Alignment Key
Pin One Corner of the CPU Socket
LGA 775 CPU
Notch
Notch
Triangle Pin One Marking on the CPU
- 13 -
Hardware Installation
B. Follow the steps below to correctly install the CPU into the motherboard CPU socket.
Before installing the CPU, make sure to turn off the computer and unplug the power
cord from the power outlet to prevent damage to the CPU.
CPU Socket Lever
Step 1:
Completely raise the CPU socket lever.
Step 2:
Lift the metal load plate from the CPU socket.
(DO NOT touch socket contacts.)
Step 3:
Remove the protective socket cover from the
load plate. (To protect the CPU socket, always
replace the protective socket cover when the
CPU is not installed.)
Step 4:
Hold the CPU with your thumb and index
fingers. Align the CPU pin one marking (triangle)
with the pin one corner of the CPU socket (or
you may align the CPU notches with the socket
alignment keys) and gently insert the CPU
into position.
Step 5:
Once the CPU is properly inserted, replace
the load plate and push the CPU socket lever
back into its locked position.
GA-EP31-DS3L Motherboard
- 14 -
1-3-2 Installing the CPU Cooler
Follow the steps below to correctly install the CPU cooler on the motherboard. (The following procedure
uses Intel ® boxed cooler as the example cooler.)
Male
Push Pin
Direction of
the Arrow Sign
on the Male
Push Pin
The Top
of Female
Push Pin
Female
Push Pin
Step 1:
Apply an even and thin layer of thermal grease
on the surface of the installed CPU.
Step 2:
Before installing the cooler, note the direction
of the arrow sign
on the male push pin.
(Turning the push pin along the direction of
arrow is to remove the cooler, on the contrary,
is to install.)
Step 3:
Place the cooler atop the CPU, aligning the
four push pins through the pin holes on the
motherboard. Push down on the push pins
diagonally.
Step 4:
You should hear a "click" when pushing down each
push pin. Check that the Male and Female push pins
are joined closely. (Refer to your CPU cooler installation manual for instructions on installing the cooler.)
Step 5:
After the installation, check the back of the
motherboard. If the push pin is inserted as the
picture above, the installation is complete.
Step 6:
Finally, attach the power connector of the CPU
cooler to the CPU fan header (CPU_FAN) on
the motherboard.
Use extreme care when removing the CPU cooler because the thermal grease/tape between
the CPU cooler and CPU may adhere to the CPU. Inadequately removing the CPU cooler may
damage the CPU.
- 15 -
Hardware Installation
1-4
Installing the Memory
Read the following guidelines before you begin to install the memory:
• Make sure that the motherboard supports the memory. It is recommended that memory of
the same capacity, brand, speed, and chips be used.
(Go to GIGABYTE's website for the latest memory support list.)
• Always turn off the computer and unplug the power cord from the power outlet before
installing the memory to prevent hardware damage.
• Memory modules have a foolproof design. A memory module can be installed in only one
direction. If you are unable to insert the memory, switch the direction.
1-4-1 Dual Channel Memory Configuration
This motherboard provides four DDR2 memory sockets and supports Dual Channel
Technology. After the memory is installed, the BIOS will automatically detect the
specifications and capacity of the memory. Enabling Dual Channel memory mode
will double the original memory bandwidth.
The four DDR2 memory sockets are divided into two channels and each channel has two memory
sockets as following:
Channel 0: DDR2_1, DDR2_2
Channel 1: DDR2_3, DDR2_4
Dual Channel Memory Configurations Table
DDR2_1 DDR2_2 DDR2_3 DDR2_4
Two Modules
Four Modules
DS/SS
--
DS/SS
--
DS/SS
--
--
DS/SS
--
DS/SS
DS/SS
--
--
DS/SS
--
DS/SS
SS
SS
SS
SS
DDR2_3
DDR2_4
DDR2_1
DDR2_2
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
Due to chipset limitation, read the following guidelines before installing the memory in Dual Channel mode.
1. Dual Channel mode cannot be enabled if only one DDR2 memory module is installed.
2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used and installed according to the
configurations in the first table for optimum performance.
3. Because of chipset limitations, do not populate both DIMM sockets of the same channel
(e.g. DDR2_1 and DDR2_2) with double-sided memory modules to prevent system's failure to
start or incorrect detection of memory modules.
GA-EP31-DS3L Motherboard
- 16 -
1-4-2 Installing a Memory
Before installing a memory module , make sure to turn off the computer and unplug
the power cord from the power outlet to prevent damage to the memory module.
DDR2 DIMMs are not compatible to DDR DIMMs. Be sure to install DDR2 DIMMs on
this motherboard.
Notch
DDR2 DIMM
A DDR2 memory module has a notch, so it can only fit in one direction. Follow the steps below to
correctly install your memory modules in the memory sockets.
Step 1:
Note the orientation of the memory module. Spread the retaining
clips at both ends of the memory socket. Place the memory
module on the socket. As indicated in the picture on the left,
place your fingers on the top edge of the memory, push down
on the memory and insert it vertically into the memory socket.
Step 2:
The clips at both ends of the socket will snap into place when
the memory module is securely inserted.
- 17 -
Hardware Installation
1-5
Installing an Expansion Card
Read the following guidelines before you begin to install an expansion card:
• Make sure the motherboard supports the expansion card. Carefully read the manual that
came with your expansion card.
• Always turn off the computer and unplug the power cord from the power outlet before
installing an expansion card to prevent hardware damage.
PCI Express x1 Slot
PCI Express x16 Slot
PCI Slot
Follow the steps below to correctly install your expansion card in the expansion slot.
1. Locate an expansion slot that supports your card. Remove the metal slot cover from the chassis back panel.
2. Align the card with the slot, and press down on the card until it is fully seated in the slot.
3. Make sure the metal contacts on the card are completely inserted into the slot.
4. Secure the card's metal bracket to the chassis back panel with a screw.
5. After installing all expansion cards, replace the chassis cover(s).
6. Turn on your computer. If necessary, go to BIOS Setup to make any required BIOS changes for
your expansion card(s).
7. Install the driver provided with the expansion card in your operating system.
Example: Installing and Removing a PCI Express x16 Graphics Card:
• Installing a Graphics Card:
Gently insert the graphics card into the PCI Express x16 slot. Make sure the graphics card is
locked by the latch at the end of the PCI Express x16 slot.
• Removing the Card:
Press the white latch at the end of the PCI Express x16 slot to release the
card and then pull the card straight up from the slot.
GA-EP31-DS3L Motherboard
- 18 -
1-6
Back Panel Connectors
PS/2 Keyboard and PS/2 Mouse Port
Use the upper port (green) to connect a PS/2 mouse and the lower port (purple) to connect a
PS/2 keyboard.
Parallel Port
Use the parallel port to connect devices such as a printer, scanner and etc. The parallel port is also
called a printer port.
Coaxial S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital coaxial
audio. Before using this feature, ensure that your audio system provides a coaxial digital audio in
connector.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical
audio. Before using this feature, ensure that your audio system provides an optical digital audio in
connector.
Serial Port
Use the serial port to connect devices such as a mouse, modem or other peripherals.
USB Port
The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices such as an
USB keyboard/mouse, USB printer, USB flash drive and etc.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Connection/
Speed LED
Activity LED
LAN Port
Connection/Speed LED:
State
Description
Orange
1 Gbps data rate
Green
Off
100 Mbps data rate
10 Mbps data rate
Activity LED:
State
Blinking
Description
Data transmission or receiving is occurring
Off
No data transmission or receiving is occurring
• When removing the cable connected to a back panel connector, first remove the cable
from your device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side
to prevent an electrical short inside the cable connector.
- 19 -
Hardware Installation
Center/Subwoofer Speaker Out Jack (Orange)
Use this audio jack to connect center/subwoofer speakers in a 5.1/7.1-channel audio configuration.
Rear Speaker Out Jack (Black)
Use this audio jack to connect rear speakers in a 4/5.1/7.1-channel audio configuration.
Side Speaker Out Jack (Gray)
Use this audio jack to connect side speakers in a 7.1-channel audio configuration.
Line In Jack (Blue)
The default line in jack. Use this audio jack for line in devices such as an optical drive, walkman,
etc.
Line Out Jack (Green)
The default line out jack. Use this audio jack for a headphone or 2-channel speaker. This jack can
be used to connect front speakers in a 4/5.1/7.1-channel audio configuration.
Mic In Jack (Pink)
The default Mic in jack. Microphones must be connected to this jack.
In addition to the default speakers settings, the ~ audio jacks can be reconfigured to
perform different functions via the audio software. Only microphones still MUST be
connected to the default Mic in jack ( ). Refer to the instructions on setting up a 2/4/5.1/
7.1-channel audio configuration in Chapter 5, "Configuring 2/4/5.1/7.1-Channel Audio."
GA-EP31-DS3L Motherboard
- 20 -
1-7
Internal Connectors
1
3 20
6
11
4
2
13
18
19
15
14
9
5
8
17
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
ATX_12V
ATX
CPU_FAN
SYS_FAN1
SYS_FAN2
PWR_FAN
FDD
IDE
SATA2_0/1/2/3
PWR_LED
7
16
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
10
12
F_AUDIO
F_PANEL
CD_IN
SPDIF_I
SPDIF_O
F_USB1/F_USB2
CI
CLR_CMOS
BAT
PHASE LED
Read the following guidelines before connecting external devices:
• First make sure your devices are compliant with the connectors you wish to connect.
• Before installing the devices, be sure to turn off the devices and your computer. Unplug the
power cord from the power outlet to prevent damage to the devices.
• After installing the device and before turning on the computer, make sure the device cable
has been securely attached to the connector on the motherboard.
- 21 -
Hardware Installation
1/2) ATX_12V/ATX (2x2 12V Power Connector and 2x12 Main Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all the
components on the motherboard. Before connecting the power connector, first make sure the
power supply is turned off and all devices are properly installed. The power connector possesses
a foolproof design. Connect the power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not
connected, the computer will not start.
• To meet expansion requirements, it is recommended that a power supply that can withstand
high power consumption be used (500W or greater). If a power supply is used that does not
provide the required power, the result can lead to an unstable or unbootable system.
• The main power connector is compatible with power supplies with 2x10 power
connectors. When using a 2x12 power supply, remove the protective cover from the
main power connector on the motherboard. Do not insert the power supply cable into pins
under the protective cover when using a 2x10 power supply.
ATX_12V:
Pin No.
3
4
2
1
ATX_12V
Definition
1
2
GND
GND
3
+12V
4
+12V
ATX:
12
24
1
13
Pin No.
Definition
2
3
3.3V
GND
15
GND
4
+5V
16
PS_ON(soft On/Off)
5
GND
6
7
+5V
GND
17
18
GND
GND
19
GND
8
Power Good
20
-5V
9
5V SB(stand by +5V)
10
11
+12V
+12V (Only for 2x12-pinATX)
21
22
+5V
+5V
12
3.3V (Only for 2x12-pinATX)
- 22 -
13
14
Definition
3.3V
ATX
GA-EP31-DS3L Motherboard
Pin No.
1
3.3V
-12V
23
+5V (Only for 2x12-pin ATX)
24
GND (Only for 2x12-pin ATX)
3/4/5/6) CPU_FAN/SYS_FAN1/SYS_FAN2/PWR_FAN (Fan Headers)
The motherboard has a 4-pin CPU fan header (CPU_FAN), a 4-pin system fan header (SYS_FAN2),
a 3-pin system fan header (SYS_FAN1), and a 3-pin power fan header (PWR_FAN). Most fan
headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect it in
the correct orientation (the black connector wire is the ground wire). The motherboard supports CPU
fan speed control, which requires the use of a CPU fan with fan speed control design. For optimum
heat dissipation, it is recommended that a system fan be installed inside the chassis.
CPU_FAN :
Pin No.
1
CPU_FAN
Definition
1
GND
2
3
+12V
Sense
4
Speed Control
SYS_FAN1 / PWR_FAN :
1
1
PWR_FAN
SYS_FAN1
Pin No.
Definition
1
GND
2
+12V
3
Sense
SYS_FAN2:
Pin No.
1
1
2
SYS_FAN2
Definition
GND
Speed Control
3
Sense
4
+5V
• Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
• These fan headers are not configuration jumper blocks. Do not place a jumper cap on the
headers.
7) FDD (Floppy Disk Drive Connector)
This connector is used to connect a floppy disk drive. The types of floppy disk drives supported
are: 360 KB, 720 KB, 1.2 MB, 1.44 MB, and 2.88 MB. Before connecting a floppy disk drive, be
sure to locate pin 1 of the connector and the floppy disk drive cable. The pin 1 of the cable is
typically designated by a stripe of different color.
33
1
34
2
- 23 -
Hardware Installation
8) IDE (IDE Connector)
The IDE connector supports up to two IDE devices such as hard drives and optical drives. Before
attaching the IDE cable, locate the foolproof groove on the connector. If you wish to connect two IDE
devices, remember to set the jumpers and the cabling according to the role of the IDE devices (for
example, master or slave). (For information about configuring master/slave settings for the IDE
devices, read the instructions from the device manufacturers.)
2
40
1
39
9) SATA2_0/1/2/3 (SATA 3Gb/s Connectors)
The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s
standard. Each SATA connector supports a single SATA device.
Pin No.
SATA2_0
7
SATA2_2
1 7
SATA2_1
1
1
SATA2_3
7 1
7
Definition
1
2
GND
TXP
3
TXN
4
GND
5
6
RXN
RXP
7
GND
Please connect the L-shaped end
of the SATA 3Gb/s cable to your
SATA hard drive.
GA-EP31-DS3L Motherboard
- 24 -
10) PWR_LED (System Power LED Header)
This header can be used to connect a system power LED on the chassis to indicate system power
status. The LED is on when the system is operating. The LED keeps blinking when the system is
in S1 sleep state. The LED is off when the system is in S3/S4 sleep state or powered off (S5).
Pin No.
1
Definition
1
2
MPD+
MPD-
3
MPD-
System Status LED
S0
On
S1
S3/S4/S5
Blinking
Off
11) F_AUDIO (Front Panel Audio Header)
The front panel audio header supports Intel High Definition audio (HD) and AC'97 audio. You may
connect your chassis front panel audio module to this header. Make sure the wire assignments of
the module connector match the pin assignments of the motherboard header. Incorrect connection
between the module connector and the motherboard header will make the device unable to work
or even damage it.
1
2
9
10
For HD Front Panel Audio:
Pin No.
Definition
1
MIC2_L
For AC'97 Front Panel Audio:
Pin No.
Definition
1
MIC
2
GND
2
GND
3
MIC2_R
3
MIC Power
4
5
-ACZ_DET
LINE2_R
4
5
NC
Line Out (R)
6
GND
6
NC
7
FAUDIO_JD
7
NC
8
9
No Pin
LINE2_L
8
9
No Pin
Line Out (L)
10
GND
10
NC
• The front panel audio header supports HD audio by default. If your chassis provides an
AC'97 front panel audio module, refer to the instructions on how to activate AC'97 functioninality
via the audio software in Chapter 5, "Configuring 2/4/5.1/7.1-Channel Audio."
• Audio signals will be present on both of the front and back panel audio connections
simultaneously. If you want to mute the back panel audio (only supported when using an HD
front panel audio module), refer to Chapter 5, "Configuring 2/4/5.1/7.1-Channel Audio."
• Some chassis provide a front panel audio module that has separated connectors on each
wire instead of a single plug. For information about connecting the front panel audio
module that has different wire assignments, please contact the chassis manufacturer.
- 25 Hardware Installation
12) F_PANEL (Front Panel Header)
Connect the power switch, reset switch, speaker and system status indicator on the chassis front
panel to this header according to the pin assignments below. Note the positive and negative pins
before connecting the cables.
2
1
SPEAK-
Speaker
Connector
SPEAK+
Power
Switch
MSG+
MSGPW+
PW-
Message/Power/
Sleep LED
RES+
NC
HD+
IDE Hard Disk
Active LED
RES-
HD-
20
19
Reset
Switch
• MSG (Message/Power/Sleep LED, Yellow):
Connects to the power status indicator on the chassis front panel. The
System Status LED
LED is on when the system is operating. The LED keeps blinking when
S0
On
S1
Blinking the system is in S1 sleep state. The LED is off when the system is in
S3/S4/S5
Off
S3/S4 sleep state or powered off (S5).
• PW (Power Switch, Red):
Connects to the power switch on the chassis front panel. You may configure the way to turn off
your system using the power switch (refer to Chapter 2, "BIOS Setup," "Power Management
Setup," for more information).
• SPEAK (Speaker, Orange):
Connects to the speaker on the chassis front panel. The system reports system startup status
by issuing a beep code. One single short beep will be heard if no problem is detected at system
startup. If a problem is detected, the BIOS may issue beeps in different patterns to indicate the
problem. Refer to Chapter 5, "Troubleshooting," for information about beep codes.
• HD (IDE Hard Drive Activity LED, Blue)
Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard
drive is reading or writing data.
• RES (Reset Switch, Green):
Connects to the reset switch on the chassis front panel. Press the reset switch to restart the
computer if the computer freezes and fails to perform a normal restart.
• NC (Purple):
No connection
The front panel design may differ by chassis. A front panel module mainly consists of
power switch, reset switch, power LED, hard drive activity LED, speaker and etc. When
connecting your chassis front panel module to this header, make sure the wire assignments and the pin assignments are matched correctly.
GA-EP31-DS3L Motherboard
- 26 -
13) CD_IN (CD In Connector, Black)
You may connect the audio cable that came with your optical drive to the header.
1
Pin No.
Definition
1
2
CD-L
GND
3
GND
4
CD-R
14) SPDIF_I (S/PDIF In Header, Red)
This header supports digital S/PDIF in and can connect to an audio device that supports digital
audio out via an optional S/PDIF in cable. For purchasing the optional S/PDIF in cable, please
contact the local dealer.
1
- 27 -
Pin No.
Definition
1
Power
2
SPDIFI
3
GND
Hardware Installation
15) SPDIF_O (S/PDIF Out Header)
This header supports digital S/PDIF out and connects a S/PDIF digital audio cable (provided by
expansion cards) for digital audio output from your motherboard to certain expansion cards like
graphics cards and sound cards. For example, some graphics cards may require you to use a
S/PDIF digital audio cable for digital audio output from your motherboard to your graphics card if
you wish to connect an HDMI display to the graphics card and have digital audio output from the
HDMI display at the same time. For information about connecting the S/PDIF digital audio cable,
carefully read the manual for your expansion card.
1
Pin No.
Definition
1
2
SPDIFO
GND
16) F_USB1/F_USB2 (USB Headers)
The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports
via an optional USB bracket. For purchasing the optional USB bracket, please contact the local
dealer.
Pin No.
Definition
2
10
1
Power (5V)
1
9
2
3
Power (5V)
USB DX-
4
USB DY-
5
USB DX+
6
7
USB DY+
GND
8
GND
9
No Pin
10
NC
• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
• Prior to installing the USB bracket, be sure to turn off your computer and unplug the
power cord from the power outlet to prevent damage to the USB bracket.
GA-EP31-DS3L Motherboard
- 28 -
17) CI (Chassis Intrusion Header)
This motherboard provides a chassis detection feature that detects if the chassis cover has been
removed. This function requires a chassis with chassis intrusion detection design.
Pin No.
1
2
1
Definition
Signal
GND
18) CLR_CMOS (Clearing CMOS Jumper)
Use this jumper to clear the CMOS values (e.g. date information and BIOS configurations) and
reset the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the
two pins to temporarily short the two pins or use a metal object like a screwdriver to touch the two
pins for a few seconds.
Open: Normal
Short: Clear CMOS Values
• Always turn off your computer and unplug the power cord from the power outlet before
clearing the CMOS values.
• After clearing the CMOS values and before turning on your computer, be sure to remove
the jumper cap from the jumper. Failure to do so may cause damage to the motherboard.
• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized
Defaults) or manually configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for
BIOS configurations).
- 29 -
Hardware Installation
19) BAT(Battery)
The battery provides power to keep the values (such as BIOS configurations, date, and time
information) in the CMOS when the computer is turned off. Replace the battery when the battery
voltage drops to a low level, or the CMOS values may not be accurate or may be lost.
You may clear the CMOS values by removing the battery:
1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for one minute.
(Or use a metal object like a screwdriver to touch the positive and negative
terminals of the battery holder, making them short for 5 seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
• Always turn off your computer and unplug the power cord before replacing the battery.
• Replace the battery with an equivalent one. Danger of explosion if the battery is replaced
with an incorrect model.
• Contact the place of purchase or local dealer if you are not able to replace the battery by
yourself or uncertain about the battery model.
• When installing the battery, note the orientation of the positive side (+) and the negative
side (-) of the battery (the positive side should face up).
• Used batteries must be handled in accordance with local environmental regulations.
20) PHASE LED
The number of lighted LEDs indicates the CPU loading. The higher the CPU loading, the more the
number of lighted LEDs.
GA-EP31-DS3L Motherboard
- 30 -
Chapter 2 BIOS Setup
BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on the
motherboard. Its major functions include conducting the Power-On Self-Test (POST) during system
startup, saving system parameters and loading operating system, etc. BIOS includes a BIOS Setup
program that allows the user to modify basic system configuration settings or to activate certain system
features. When the power is turned off, the battery on the motherboard supplies the necessary power
to the CMOS to keep the configuration values in the CMOS.
To access the BIOS Setup program, press the <Delete> key during the POST when the power is turned
on. To see more advanced BIOS Setup menu options, you can press <Ctrl> + <F1> in the main menu
of the BIOS Setup program.
To upgrade the BIOS, use either the GIGABYTE Q-Flash or @BIOS utility.
• Q-Flash allows the user to quickly and easily upgrade or back up BIOS without entering the
operating system.
• @BIOS is a Windows-based utility that searches and downloads the latest version of BIOS from the
Internet and updates the BIOS.
For instructions on using the Q-Flash and @BIOS utilities, refer to Chapter 4, "BIOS Update Utilities."
• Because BIOS flashing is potentially risky, if you do not encounter problems using the
current version of BIOS, it is recommended that you not flash the BIOS. To flash the BIOS,
do it with caution. Inadequate BIOS flashing may result in system malfunction.
• BIOS will emit a beep code during the POST. Refer to Chapter 5, "Troubleshooting," for the
beep codes description.
• It is recommended that you not alter the default settings (unless you need to) to prevent
system instability or other unexpected results. Inadequately altering the settings may result
in system's failure to boot. If this occurs, try to clear the CMOS values and reset the board
to default values. (Refer to the "Load Optimized Defaults" section in this chapter or introductions of the battery/clearing CMOS jumper in Chapter 1 for how to clear the CMOS values.)
- 31 -
BIOS Setup
2-1
Startup Screen
The following screens may appear when the computer boots.
A. The LOGO Screen (Default)
<TAB>:POST Screen <DEL>:BIOS Setup/Q-Flash <F9>:XpressRecovery2 <F12>:Boot Menu <END>:Qflash
Function Keys
B. The POST Screen
Award Modular BIOS v6.00PG, An Energy Star Ally
Copyright (C) 1984-2008, Award Software, Inc.
Motherboard Model
BIOS Version
EP31-DS3L E5
.
.
.
.
<DEL>: BIOS Setup <F9>: XpressRecovery2 <F12>: Boot Menu <End>: Qflash
07/21/2008-P31-ICH7-6A99OG09C-00
Function Keys
Function Keys:
<TAB>: POST Screen
Press the <Tab> key to show the BIOS POST screen. To show the BIOS POST screen at system
startup, refer to the instructions on the Full Screen LOGO Show item on page 38.
<DEL>: BIOS Setup/Q-Flash
Press the <Delete> key to enter BIOS Setup or to access the Q-Flash utility in BIOS Setup.
<F9>: Xpress Recovery2
If you have ever entered Xpress Recovery2 to back up hard drive data using the motherboard
driver disk, the <F9> key can be used for subsequent access to XpressRecovery2 during the
POST. For more information, refer to Chapter 4, "Xpress Recovery2."
<F12>: Boot Menu
Boot Menu allows you to set the first boot device without entering BIOS Setup. In Boot Menu, use
the up arrow key < > or the down arrow key< > to select the first boot device, then press <Enter>
to accept. To exit Boot Menu, press <Esc>. The system will directly boot from the device
configured in Boot Menu.
Note: The setting in Boot Menu is effective for one time only. After system restart, the device boot
order will still be based on BIOS Setup settings. You can access Boot Menu again to change the first
boot device setting as needed.
<End>: Q-Flash
Press the <End> key to access the Q-Flash utility directly without having to enter BIOS Setup first.
GA-EP31-DS3L Motherboard
- 32 -
2-2
The Main Menu
Once you enter the BIOS Setup program, the Main Menu (as shown below) appears on the screen. Use
arrow keys to move among the items and press <Enter> to accept or enter a sub-menu.
(Sample BIOS Version: E5)
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
`
Standard CMOS Features
Advanced BIOS Features
Load Fail-Safe Defaults
Load Optimized Defaults
`
`
Integrated Peripherals
Power Management Setup
Set Supervisor Password
Set User Password
`
`
PnP/PCI Configurations
PC Health Status
Save & Exit Setup
Exit Without Saving
`
MB Intelligent Tweaker(M.I.T.)
KLJI: Select Item
F10: Save & Exit Setup
ESC: Quit
F8: Q-Flash
F11: Save CMOS to BIOS
F12: Load CMOS from BIOS
Time, Date, Hard Disk Type...
BIOS Setup Program Function Keys
< >< ><
<Enter>
<Esc>
><
<Page Up>
<Page Down>
<F1>
<F2>
<F5>
<F6>
<F7>
<F8>
<F9>
<F10>
<F11>
<F12>
>
Move the selection bar to select an item
Execute command or enter the submenu
Main Menu: Exit the BIOS Setup program
Submenus: Exit current submenu
Increase the numeric value or make changes
Decrease the numeric value or make changes
Show descriptions of the function keys
Move cursor to the Item Help block on the right (submenus only)
Restore the previous BIOS settings for the current submenus
Load the Fail-Safe BIOS default settings for the current submenus
Load the Optimized BIOS default settings for the current submenus
Access the Q-Flash utility
Display system information
Save all the changes and exit the BIOS Setup program
Save CMOS to BIOS
Load CMOS from BIOS
Main Menu Help
The onscreen description of a highlighted setup option is displayed on the bottom line of the Main Menu.
Submenu Help
While in a submenu, press <F1> to display a help screen (General Help) of function keys available for
the menu. Press <Esc> to exit the help screen. Help for each item is in the Item Help block on the right
side of the submenu.
• If you do not find the settings you want in the Main Menu or a submenu, press <Ctrl>+<F1>
to access more advanced options.
• When the system is not stable as usual, select the Load Optimized Defaults item to set
your system to its defaults.
• The BIOS Setup menus described in this chapter are for reference only and may differ by
BIOS version.
- 33 -
BIOS Setup
„ The Functions of the <F11> and <F12> keys (For the Main Menu Only)
` F11: Save CMOS to BIOS
This function allows you to save the current BIOS settings to a profile. You can create up to 8
profiles (Profile 1-8) and name each profile. First enter the profile name (to erase the default profile
name, use the SPACE key) and then press <Enter> to complete.
` F12: Load CMOS from BIOS
If your system becomes unstable and you have loaded the BIOS default settings, you can use this
function to load the BIOS settings from a profile created before, without the hassles of reconfiguring
the BIOS settings. First select the profile you wish to load, then press <Enter> to complete.
„ Standard CMOS Features
Use this menu to configure the system time and date, hard drive types, floppy disk drive types,
and the type of errors that stop the system boot, etc.
„ Advanced BIOS Features
Use this menu to configure the device boot order, advanced features available on the CPU, and
the primary display adapter.
„ Integrated Peripherals
Use this menu to configure all peripheral devices, such as IDE, SATA, USB, integrated audio, and
integrated LAN, etc.
„ Power Management Setup
Use this menu to configure all the power-saving functions.
„ PnP/PCI Configurations
Use this menu to configure the system's PCI & PnP resources.
„ PC Health Status
Use this menu to see information about autodetected system/CPU temperature, system voltage
and fan speed, etc.
„ MB Intelligent Tweaker(M.I.T.)
Use this menu to configure the clock, frequency and voltages of your CPU, memory, etc.
„ Load Fail-Safe Defaults
Fail-Safe defaults are factory settings for the most stable, minimal-performance system operations.
„ Load Optimized Defaults
Optimized defaults are factory settings for optimal-performance system operations.
„ Set Supervisor Password
Change, set, or disable password. It allows you to restrict access to the system and BIOS Setup.
A supervisor password allows you to make changes in BIOS Setup.
„ Set User Password
Change, set, or disable password. It allows you to restrict access to the system and BIOS Setup.
An user password only allows you to view the BIOS settings but not to make changes.
„ Save & Exit Setup
Save all the changes made in the BIOS Setup program to the CMOS and exit BIOS Setup.
(Pressing <F10> can also carry out this task.)
„ Exit Without Saving
Abandon all changes and the previous settings remain in effect. Pressing <Y> to the confirmation
message will exit BIOS Setup. (Pressing <Esc> can also carry out this task.)
GA-EP31-DS3L Motherboard
- 34 -
2-3
Standard CMOS Features
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Standard CMOS Features
`
`
`
`
`
`
Date (mm:dd:yy)
Time (hh:mm:ss)
Wed, Feb 20 2008
22:31:24
IDE Channel 0 Master
IDE Channel 0 Slave
IDE Channel 2 Master
IDE Channel 2 Slave
IDE Channel 3 Master
IDE Channel 3 Slave
[None]
[None]
[None]
[None]
[None]
[None]
Drive A
Floppy 3 Mode Support
[1.44M, 3.5"]
[Disabled]
Halt On
[All, But Keyboard]
Base Memory
Extended Memory
Total Memory
640K
510M
512M
KLJI: Move
Enter: Select
F5: Previous Values
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
Item Help
Menu Level`
ESC: Exit
F1: General Help
F7: Optimized Defaults
Date
Sets the system date. The date format is week (read-only), month, date and year. Select the
desired field and use the up arrow or down arrow key to set the date.
Time
Sets the system time. For example, 1 p.m. is 13:0:0. Select the desired field and use the up arrow
or down arrow key to set the time.
IDE Channel 0 Master/Slave
IDE HDD Auto-Detection
Press <Enter> to autodetect the parameters of the IDE/SATA device on this channel.
IDE Channel 0 Master/Slave
Configure your IDE/SATA devices by using one of the three methods below:
• Auto
Lets BIOS automatically detect IDE/SATA devices during the POST. (Default)
• None
If no IDE/SATA devices are used, set this item to None so the system will
skip the detection of the device during the POST for faster system startup.
• Manual
Allows you to manually enter the specifications of the hard drive when the
hard drive access mode is set to CHS.
Access Mode
Sets the hard drive access mode. Options are: Auto (default), CHS, LBA, Large.
IDE Channel 2, 3 Master/Slave
IDE Auto-Detection
Press <Enter> to autodetect the parameters of the IDE/SATA device on this channel.
Extended IDE Drive
Configure your IDE/SATA devices by using one of the two methods below:
• Auto
Lets BIOS automatically detect IDE/SATA devices during the POST. (Default)
• None
If no IDE/SATA devices are used, set this item to None so the system will
skip the detection of the device during the POST for faster system startup.
Access Mode
Sets the hard drive access mode. Options are: Auto (default), Large.
- 35 -
BIOS Setup
The following fields display your hard drive specifications. If you wish to enter the parameters
manually, refer to the information on the hard drive.
Capacity
Approximate capacity of the currently installed hard drive.
Cylinder
Head
Precomp
Landing Zone
Sector
Number of cylinders.
Number of heads.
Write precompensation cylinder.
Landing zone.
Number of sectors.
Drive A
Allows you to selects the type of floppy disk drive installed in your system. If you do not install a
floppy disk drive, set this item to None. Options are: None, 360K/5.25", 1.2M/5.25", 720K/3.5",
1.44M/3.5", 2.88M/3.5".
Floppy 3 Mode Support
Allows you to specify whether the installed floppy disk drive is 3-mode floppy disk drive, a
Japanese standard floppy disk drive. Options are: Disabled (default), Drive A.
Halt on
Allows you to determine whether the system will stop for an error during the POST.
No Errors
The system boot will not stop for any error.
All Errors
Whenever the BIOS detects a non-fatal error the system boot will stop.
All, But Keyboard The system boot will not stop for a keyboard error but stop for all other
errors. (Default)
All, But Diskette
The system boot will not stop for a floppy disk drive error but stop for all
other errors.
All, But Disk/Key The system boot will not stop for a keyboard or a floppy disk drive error but
it will stop for all other errors.
Memory
These fields are read-only and are determined by the BIOS POST.
Base Memory
Also called conventional memory. Typically, 640 KB will be reserved for
the MS-DOS operating system.
Extended Memory The amount of extended memory.
Total Memory
The total amount of memory installed on the system.
GA-EP31-DS3L Motherboard
- 36 -
2-4
Advanced BIOS Features
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Advanced BIOS Features
` Hard Disk Boot Priority
First Boot Device
Second Boot Device
Third Boot Device
Password Check
HDD S.M.A.R.T. Capability
Limit CPUID Max. to 3 (Note)
No-Execute Memory Protect (Note)
Load-Line Calibration
CPU Enhanced Halt (C1E) (Note)
CPU Thermal Monitor 2(TM2) (Note)
CPU EIST Function (Note)
Virtualization Technology (Note)
Full Screen LOGO Show
Init Display First
KLJI: Move
Enter: Select
F5: Previous Values
[Press Enter]
[Floppy]
[Hard Disk]
[CDROM]
[Setup]
[Disabled]
[Disabled]
[Enabled]
[Disabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[PCI]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
Item Help
Menu Level`
ESC: Exit
F1: General Help
F7: Optimized Defaults
Hard Disk Boot Priority
Specifies the sequence of loading the operating system from the installed hard drives. Use the up
or down arrow key to select a hard drive, then press the plus key <+> (or <PageUp>) or the minus
key <-> (or <PageDown>) to move it up or down on the list. Press <Esc> to exit this menu when
finished.
First/Second/Third Boot Device
Specifies the boot order from the available devices. Use the up or down arrow key to select a
device and press <Enter> to accept. Options are: Floppy, LS120, Hard Disk, CDROM, ZIP,
USB-FDD, USB-ZIP, USB-CDROM, USB-HDD, LAN, Disabled.
Password Check
Specifies whether a password is required every time the system boots, or only when you enter
BIOS Setup. After configuring this item, set the password(s) under the Set Supervisor/User
Password item in the BIOS Main Menu.
Setup
A password is only required for entering the BIOS Setup program. (Default)
System
A password is required for booting the system and for entering the BIOS Setup
program.
HDD S.M.A.R.T. Capability
Enables or disables the S.M.A.R.T. (Self Monitoring and Reporting Technology) capability of your
hard drive. This feature allows your system to report read/write errors of the hard drive and to
issue warnings when a third party hardware monitor utility is installed. (Default: Disabled)
(Note)
This item is present only if you install a CPU that supports this feature. For more information
about Intel CPUs' unique features, please visit Intel's website.
- 37 -
BIOS Setup
Limit CPUID Max. to 3 (Note)
Allows you to determine whether to limit CPUID maximum value. Set this item to Disabled for
Windows XP operating system; set this item to Enabled for legacy operating system such as
Windows NT4.0. (Default: Disabled)
No-Execute Memory Protect (Note)
Enables or disables Intel® Execute Disable Bit function. This function may enhance protection for
the computer, reducing exposure to viruses and malicious buffer overflow attacks when working
with its supporting software and system. (Default: Enabled)
Load-Line Calibration
Enables or disables Load-Line Calibration. Enabling this feature adjusts Vdroop, keeping the CPU
voltage more constant under light and heavy CPU load. Disabled sets the CPU voltage following
Intel specifications. (Default: Disabled)
CPU Enhanced Halt (C1E) (Note)
Enables or disables Intel ® CPU Enhanced Halt (C1E) function, a CPU power-saving function in
system halt state. When enabled, the CPU core frequency and voltage will be reduced during
system halt state to decrease power consumption. (Default: Enabled)
CPU Thermal Monitor 2 (TM2) (Note)
Enables or disables Intel ® CPU Thermal Monitor (TM2) function, a CPU overheating protection
function. When enabled, the CPU core frequency and voltage will be reduced when the CPU is
overheated. (Default: Enabled)
CPU EIST Function (Note)
Enables or disables Enhanced Intel SpeedStep Technology (EIST). Depending on CPU loading,
Intel® EIST technology can dynamically and effectively lower the CPU voltage and core frequency
to decrease average power consumption and heat production. (Default: Enabled)
Virtualization Technology (Note)
Enables or disables Intel ® Virtualization Technology. Virtualization enhanced by Intel ® Virtualization
Technology will allow a platform to run multiple operating systems and applications in independent
partitions. With virtualization, one computer system can function as multiple virtual systems.
(Default: Enabled)
Full Screen LOGO Show
Allows you to determine whether to display the GIGABYTE Logo at system startup. Disabled
displays normal POST message. (Default: Enabled)
Init Display First
Specifies the first initiation of the monitor display from the installed PCI graphics card or PCI
Express graphics card.
PCI
Sets the PCI graphics card as the first display. (Default)
PEG
Sets the PCI Express graphics card as the first display.
(Note)
This item is present only if you install a CPU that supports this feature. For more information
about Intel CPUs' unique features, please visit Intel's website.
GA-EP31-DS3L Motherboard
- 38 -
2-5
Integrated Peripherals
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Integrated Peripherals
On-Chip Primary PCI IDE
On-Chip SATA Mode
x PATA IDE Set to
SATA Port 0/2 Set to
SATA Port 1/3 Set to
USB Controller
USB 2.0 Controller
USB Keyboard Support
USB Mouse Support
Legacy USB storage detect
Azalia Codec
Onboard H/W LAN
` SMART LAN
Onboard LAN Boot ROM
Onboard Serial Port 1
Onboard Parallel Port
Parallel Port Mode
KLJI: Move
Enter: Select
F5: Previous Values
[Enabled]
[Auto]
Ch.0 Master/Slave
Ch.2 Master/Slave
Ch.3 Master/Slave
[Enabled]
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[Auto]
[Enabled]
[Press Enter]
[Disabled]
[3F8/IRQ4]
[378/IRQ7]
[SPP]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
Item Help
Menu Level`
ESC: Exit
F1: General Help
F7: Optimized Defaults
On-Chip Primary PCI IDE
Enables or disables the integrated IDE controller. (Default: Enabled)
On-Chip SATA Mode
Configures the integrated SATA controller.
Disabled
Disables the integrated SATA controller.
Auto
Lets BIOS set SATA devices to Combined or Enhanced mode.
If your onboard SATA controller is automatically configured to Combined
mode, you can manually re-configure it to Enhanced mode as needed.
(Default)
Combined
Sets all SATA devices to operate in PATA mode. Combined allows a
maximum of 4 ATA devices to be used simultaneously: two PATA devices
plus two SATA devices.
Enhanced
Sets all SATA devices to operate in SATA mode.
Non-Combined
Sets all SATA devices to operate in PATA mode and disables the integrated
IDE controller.
PATA IDE Set to
This item is configurable only if the On-Chip SATA Mode is set to Combined.
Ch.0 Master/Slave Sets the IDE channels to Ch. 0 Master/Slave. (Default)
Ch.1 Master/Slave Sets the IDE channels to Ch. 1 Master/Slave.
Disabled
Disables the integrated IDE controller when Non-Combined is selected.
SATA Port 0/2 Set to
This value is dependent on the On-Chip SATA Mode and PATA IDE Set to settings.
When PATA IDE Set to is configured to Ch. 1 Master/Slave, this option will be automatically set
to Ch. 0 Master/Slave.
- 39 -
BIOS Setup
SATA Port 1/3 Set to
This value is dependent on the On-Chip SATA Mode and PATA IDE Set to settings.
When PATA IDE Set to is configured to Ch. 0 Master/Slave, this option will be automatically set
to Ch. 1 Master/Slave.
USB Controller
Enables or disables the integrated USB controller. (Default: Enabled)
Disabled will turn off all of the USB functionalities below.
USB 2.0 Controller
Enables or disables the integrated USB 2.0 controller. (Default: Enabled)
USB Keyboard Support
Allows USB keyboard to be used in MS-DOS. (Default: Disabled)
USB Mouse Support
Allows USB mouse to be used in MS-DOS. (Default: Disabled)
Legacy USB storage detect
Determines whether to detect USB storage devices, including USB flash drives and USB hard
drives during the POST. (Default: Enabled)
Azalia Codec
Enables or disables the onboard audio function. (Default: Auto)
If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item
to Disabled.
Onboard H/W LAN
Enables or disables the onboard LAN function. (Default: Enabled)
If you wish to install a 3rd party add-in network card instead of using the onboard LAN, set this item
to Disabled.
SMART LAN (LAN Cable Diagnostic Function)
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
SMART LAN
Start detecting at Port.....
Part1-2 Status = Open
Part3-6 Status = Open
Part4-5 Status = Open
Part7-8 Status = Open
KLJI: Move
Enter: Select
F5: Previous Values
/
/
/
/
Length
Length
Length
Length
=
=
=
=
Item Help
Menu Level`
0m
0m
0m
0m
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
This motherboard incorporates cable diagnostic feature designed to detect the status of the attached LAN
cable. This feature will detect cabling issue and report the approximate distance to the fault or short.
Refer to the following information for diagnosing your LAN cable:
When No LAN Cable Is Attached...
If no LAN cable is attached to the motherboard, the Status fields of all four pairs of wires will show
Open and the Length fields show 0m, as shown in the figure above.
GA-EP31-DS3L Motherboard
- 40 -
When LAN Cable Is Functioning Normally...
If no cable problem is detected on the LAN cable connected to a Gigabit hub or a 10/100 Mbps hub,
the following message will appear:
Start detecting at Port.....
Link Detected --> 100Mbps
Cable Length= 30m
Link Detected
Cable Length
Displays transmission speed
Displays the approximate length of the attached LAN cable.
Note: The Gigabit hub will only operate at a speed of 10/100Mbps in MS-DOS mode; it will operate
at a normal speed of 10/100/1000Mbps in Windows mode or when the LAN Boot ROM is activated.
When a Cable Problem Occurs...
If a cable problem occurs on a specified pair of wires, the Status field will show Short and
thenlength shown will be the approximate distance to the fault or short.
Example: Part1-2 Status = Short / Length
=
2m
Explanation: A fault or short might occur at about 2m on Part 1-2.
Note: Part 4-5 and Part 7-8 are not used in a 10/100 Mbps environment, so their Status fields will
show Open, and the length shown is the approximate length of the attached LAN cable.
Onboard LAN Boot ROM
Allows you to decide whether to activate the boot ROM integrated with the onboard LAN chip.
(Default: Disabled)
Onboard Serial Port 1
Enables or disables the first serial port and specifies its base I/O address and corresponding
interrupt. Options are: Auto, 3F8/IRQ4 (default), 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3, Disabled.
Onboard Parallel Port
Enables or disables the onboard parallel port (LPT) and specifies its base I/O address and
corresponding interrupt. Options are: 378/IRQ7 (default), 278/IRQ5, 3BC/IRQ7, Disabled.
Parallel Port Mode
Selects an operating mode for the onboard parallel (LPT) port. Options are: SPP (Standard Parallel
Port)(default), EPP (Enhanced Parallel Port), ECP (Extended Capabilities Port), ECP+EPP.
- 41 -
BIOS Setup
2-6
Power Management Setup
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
Power Management Setup
ACPI Suspend Type
Soft-Off by PWR-BTTN
PME Event Wake Up
Power On by Ring
Resume by Alarm
x Date (of Month) Alarm
x Time (hh:mm:ss) Alarm
HPET Support (Note)
HPET Mode (Note)
Power On By Mouse
Power On By Keyboard
x KB Power ON Password
AC Back Function
KLJI: Move
Enter: Select
F5: Previous Values
[S3(STR)]
[Instant-Off]
[Enabled]
[Enabled]
[Disabled]
Everyday
0:0:0
[Enabled]
[32-bit mode]
[Disabled]
[Disabled]
Enter
[Soft-Off]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
Item Help
Menu Level`
ESC: Exit
F1: General Help
F7: Optimized Defaults
ACPI Suspend Type
Specifies the ACPI sleep state when the system enters suspend.
S1(POS)
Enables the system to enter the ACPI S1 (Power on Suspend) sleep state.
In S1 sleep state, the system appears suspended and stays in a low power
mode. The system can be resumed at any time.
S3(STR)
Enables the system to enter the ACPI S3 (Suspend to RAM) sleep state (default).
In S3 sleep state, the system appears to be off and consumes less power than
in the S1 state. When signaled by a wake-up device or event, the system
resumes to its working state exactly where it was left off.
Soft-Off by PWR-BTTN
Configures the way to turn off the computer in MS-DOS mode using the power button.
Instant-Off
Press the power button and then the system will be turned off instantly. (Default)
Delay 4 Sec. Press and hold the power button for 4 seconds to turn off the system. If the power
button is pressed for less than 4 seconds, the system will enter suspend mode.
PME Event Wake Up
Allows the system to be awakened from an ACPI sleep state by a wake-up signal from a PCI or
PCIe device. Note: To use this function, you need an ATX power supply providing at least 1A on
the 5VSB lead. (Default: Enabled)
Power On by Ring
Allows the system to be awakened from an ACPI sleep state by a wake-up signal from a modem
that supports wake-up function. (Default: Enabled)
(Note)
Supported on Windows ® Vista ® operating system only.
GA-EP31-DS3L Motherboard
- 42 -
Resume by Alarm
Determines whether to power on the system at a desired time. (Default: Disabled)
If enabled, set the date and time as following:
Date (of Month) Alarm : Turn on the system at a specific time on each day or on a specific day
in a month.
Time (hh: mm: ss) Alarm : Set the time at which the system will be powered on automatically.
Note: When using this function, avoid inadequate shutdown from the operating system or removal
of the AC power, or the settings may not be effective.
HPET Support (Note)
Enables or disables High Precision Event Timer (HPET) for Windows ® Vista ® operating system.
(Default: Enabled)
HPET Mode (Note)
Allows you to select the HPET mode for your Windows ® Vista ® operating system. Select 32-bit
mode when you install 32-bit Windows ® Vista ®; select 64-bit mode when you install 64-bit
Windows® Vista ®. (Default: 32-bit mode)
Power On By Mouse
Allows the system to be turned on by a PS/2 mouse wake-up event.
Note: To use this function, you need an ATX power supply providing at least 1A on the 5VSB lead.
Disabled
Disables this function. (Default)
Double Click Double click on left button on the PS/2 mouse to turn on the system.
Power On By Keyboard
Allows the system to be turned on by a PS/2 keyboard wake-up event.
Note: you need an ATX power supply providing at least 1A on the 5VSB lead.
Disabled
Disables this function. (Default)
Password
Set a password with 1~5 characters to turn on the system.
Keyboard 98 Press POWER button on the Windows 98 keyboard to turn on the system.
KB Power ON Password
Set the password when Power On by Keyboard is set to Password. Press <Enter> on this item
and set a password with up to 5 characters and then press <Enter> to accept. To turn on the
system, enter the password and press <Enter>.
Note: To cancel the password, press <Enter> on this item. When prompted for the password, press
<Enter> again without entering the password to clear the password settings.
AC Back Function
Determines the state of the system after the return of power from an AC power loss.
Soft-Off
The system stays off upon the return of the AC power. (Default)
Full-On
The system is turned on upon the return of the AC power.
Memory
The system returns to its last known awake state upon the return of the AC
power.
(Note)
Supported on Windows ® Vista ® operating system only.
- 43 -
BIOS Setup
2-7
PnP/PCI Configurations
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
PnP/PCI Configurations
PCI1 IRQ Assignment
PCI2 IRQ Assignment
PCI3 IRQ Assignment
KLJI: Move
Enter: Select
F5: Previous Values
[Auto]
[Auto]
[Auto]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
Item Help
Menu Level`
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
PCI1 IRQ Assignment
Auto
3,4,5,7,9,10,11,12,14,15
BIOS auto-assigns IRQ to the first PCI slot. (Default)
Assigns IRQ 3,4,5,7,9,10,11,12,14,15 to the first PCI slot.
PCI2 IRQ Assignment
Auto
3,4,5,7,9,10,11,12,14,15
BIOS auto-assigns IRQ to the second PCI slot. (Default)
Assigns IRQ 3,4,5,7,9,10,11,12,14,15 to the second PCI slot.
PCI3 IRQ Assignment
Auto
3,4,5,7,9,10,11,12,14,15
GA-EP31-DS3L Motherboard
BIOS auto-assigns IRQ to the third PCI slot. (Default)
Assigns IRQ 3,4,5,7,9,10,11,12,14,15 to the third PCI slot.
- 44 -
2-8
PC Health Status
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
PC Health Status
Reset Case Open Status
Case Opened
Vcore
DDR18V
+3.3V
+12V
Current System Temperature
Current CPU Temperature
Current CPU FAN Speed
Current SYSTEM FAN1 Speed
Current SYSTEM FAN2 Speed
Current POWER FAN Speed
CPU Warning Temperature
CPU FAN Fail Warning
SYSTEM FAN1 Fail Warning
SYSTEM FAN2 Fail Warning
POWER FAN Fail Warning
CPU Smart FAN Control
KLJI: Move
Enter: Select
F5: Previous Values
[Disabled]
No
1.348V
1.824V
3.344V
12.048V
47 oC
47 oC
3375 RPM
0
RPM
0
RPM
0
RPM
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
[Enabled]
+/-/PU/PD: Value
F6: Fail-Safe Defaults
Item Help
Menu Level`
F10: Save
ESC: Exit
F1: General Help
F7: Optimized Defaults
Reset Case Open Status
Keeps or clears the record of previous chassis intrusion status. Enabled clears the record of
previous chassis intrusion status and the Case Opened field will show "No" at next boot. (Default:
Disabled)
Case Opened
Displays the detection status of the chassis intrusion detection device attached to the motherboard
CI header. If the system chassis cover is removed, this field will show "Yes", otherwise it will
show "No". To clear the chassis intrusion status record, set Reset Case Open Status to Enabled,
save the settings to CMOS, and then restart your system.
Current Voltage(V) Vcore/DDR18V/+3.3V/+12V
Displays the current system voltages.
Current System/CPU Temperature
Displays current system/CPU temperature.
Current CPU/SYSTEM/POWER FAN Speed (RPM)
Displays current CPU/system/power fan speed.
CPU Warning Temperature
Sets the warning threshold for CPU temperature. When CPU temperature exceeds the threshold,
BIOS will emit warning sound. Options are: Disabled (default), 60 o C/140 o F, 70 o C/158o F, 80 oC/
176 o F, 90 o C/194 o F.
CPU/SYSTEM/POWER FAN Fail Warning
Allows the system to emit warning sound if the CPU/system/power fan is not connected or fails.
Check the fan condition or fan connection when this occurs. (Default: Disabled)
- 45 -
BIOS Setup
CPU Smart FAN Control
Enables or disables the CPU fan speed control function. Enabled allows the CPU fan to run at
different speed according to the CPU temperature. You can adjust the fan speed with EasyTune
based on system requirements. If disabled, CPU fan runs at full speed. (Default: Enabled)
GA-EP31-DS3L Motherboard
- 46 -
2-9
MB Intelligent Tweaker(M.I.T.)
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster
CPU Clock Ratio (Note)
Fine CPU Clock Ratio (Note)
x CPU Frequency
O.C FSB1600 CPU
CPU Host Clock Control
x CPU Host Frequency (Mhz)
PCI Express Frequency (Mhz)
C.I.A. 2
Performance Enhance
System Memory Multiplier (SPD)
Memory Frequency (Mhz) 533
******** System Voltage Optimized
System Voltage Control
DDR2 OverVoltage Control
PCI-E OverVoltage Control
FSB OverVoltage Control
(G)MCH OverVoltage Control
CPU Voltage Control
Normal CPU Vcore
KLJI: Move
Enter: Select
F5: Previous Values
[Auto]
[14X]
[+0.0]
3.73GHz (266x14)
[Auto]
[Disabled]
266
[Auto]
[Disabled]
[Turbo]
[Auto]
533
********
[Manual]
[Normal]
[Normal]
[Normal]
[Normal]
[Normal]
1.40000V
+/-/PU/PD: Value
F6: Fail-Safe Defaults
F10: Save
Item Help
Menu Level`
ESC: Exit
F1: General Help
F7: Optimized Defaults
• Whether the system will work stably with the overclock/overvoltage settings you made is
dependent on your overall system configurations. Incorrectly doing overclock/overvoltage
may result in damage to CPU, chipset, or memory and reduce the useful life of these
components. This page is for advanced users only and we recommend you not to alter the
default settings to prevent system instability or other unexpected results. (Inadequately
altering the settings may result in system's failure to boot. If this occurs, clear the CMOS
values and reset the board to default values.)
• When the System Voltage Optimized item blinks in red, it is recommended that you set
the System Voltage Control item to Auto to optimize the system voltage settings.
Robust Graphics Booster
Robust Graphics Booster (R.G.B.) helps to enhance the performance of the graphics chip and
memory. Auto allows the BIOS to automatically set the R.G.B. mode based on system
configurations. Options are: Auto (default), Fast, Turbo.
CPU Clock Ratio (Note)
Allows you to alter the clock ratio for the installed CPU.
The item is present only if a CPU with unlocked clock ratio is installed.
Fine CPU Clock Ratio (Note)
Allows you to increases clock ratio by 0.5 for the installed CPU.
The item is present only if a CPU with unlocked clock ratio is installed.
CPU Frequency
Displays the current operating CPU frequency.
(Note)
This item appears only if you install a CPU that supports this feature.
- 47 -
BIOS Setup
O.C FSB1600 CPU
Enable use of a CPU with 1600 MHz FSB through overclocking. You must install the FSB 1600
MHz CPU with DDR2 800 (or above) memory module(s).
Auto
Set this item to Auto. Then save the changes and restart your computer.
During the POST, a message will appear asking if you want to enable the use
of a FSB 1600 processor. Press <Y> to confirm or <N> to reject. Or press any
key to continue the POST. (Default)
Disabled
Disable this function.
Enabled
Enable this function.
CPU Host Clock Control
Enables or disables the control of CPU host clock. Enabled will allow the CPU Host Frequency
item below to be configurable. Note: If your system fails to boot after overclocking, please wait for
20 seconds to allow for automated system reboot, or clear the CMOS values to reset the board to
default values. (Default: Disabled)
CPU Host Frequency (Mhz)
Allows you to manually set the CPU host frequency. This item is configurable only if the CPU
Host Clock Control option is enabled. The adjustable range is from 100 MHz to 700 MHz.
For an 800 MHz FSB CPU, set this item to 200 MHz.
For a 1066 MHz FSB CPU, set this item to 266 MHz.
For a 1333 MHz FSB CPU, set this item to 333 MHz.
Important It is highly recommended that the CPU frequency be set in accordance with the CPU
specifications.
PCI Express Frequency (Mhz)
Allows you to manually set the PCIe clock frequency. The adjustable range is from 90 MHz to
150 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto)
C.I.A.2
CPU Intelligent Accelerator 2 (C.I.A.2) is designed to automatically adjust CPU computing power
to maximize system performance. C.I.A.2 allows your system bus to be changed dynamically
based on CPU loading through the use of 5 preset states.
Note: System stability varies, depending on your system hardware components.
Disabled
Disables the use of C.I.A.2. (Default)
Cruise
Increases CPU frequency by 5% or 7% depending on CPU loading.
Sports
Increases CPU frequency by 7% or 9% depending on CPU loading.
Racing
Increases CPU frequency by 9% or 11% depending on CPU loading.
Turbo
Increases CPU frequency by 15% or 17% depending on CPU loading.
Full Thrust
Increases CPU frequency by 17% or 19% depending on CPU loading.
Warning: Before using C.I.A.2, please first verify the overclocking capability of your CPU.
As stability is highly dependent on system components, when system instability occurs after
overclocking, lower the overclocking ratio.
Performance Enhance
Allows the system to operate at three different performance levels.
Standard
Lets the system operate at its basic performance level.
Turbo
Lets the system operate at its good performance level. (Default)
Extreme
Lets the system operate at its best performance level.
GA-EP31-DS3L Motherboard
- 48 -
System Memory Multiplier (SPD)
Allows you to set the system memory multiplier. Options are dependent on CPU FSB. Auto sets
memory multiplier according to memory SPD data. (Default: Auto)
Memory Frequency (Mhz)
The first memory frequency value is the normal operating frequency of the memory being used;
the second is the memory frequency that is automatically adjusted according to the CPU Host
Frequency (Mhz) and System Memory Multiplier settings.
********
System Voltage Optimized
********
System Voltage Control
Determines whether to manually set the system voltages. Auto lets BIOS automatically set the
system voltages as required. Manual allows all voltage control items below to be configurable.
(Default: Manual)
DDR2 OverVoltage Control
Allows you to set memory voltage.
Normal
Supplies the memory voltage as required. (Default)
+0.1V ~ +0.7V
Increases memory voltage by 0.1V to 0.7V at 0.1V increment.
Note: Increasing memory voltage may result in damage to the memory.
PCI-E OverVoltage Control
Allows you to set PCIe voltage.
Normal
Supplies the PCIe bus voltage as required. (Default)
+0.1V ~ +0.3V
Increases PCIe bus voltage by 0.1V to 0.3V at 0.1V increment.
FSB OverVoltage Control
Allows you to set the Front Side Bus voltage.
Normal
Supplies the FSB voltage as required. (Default)
+0.1V ~ +0.3V
Increases FSB voltage by 0.1V to 0.3V at 0.1V increment.
(G)MCH OverVoltage Control
Allows you to set the North Bridge voltage.
Normal
Supplies the North Bridge voltage as required. (Default)
+0.1V ~ +0.3V
Increases North Bridge voltage by 0.1V to 0.3V at 0.1V increment.
CPU Voltage Control
Allows you to set the CPU voltage. Normal sets the CPU voltage as required. The adjustable
range is dependent on the CPU being installed. (Default: Normal)
Note: Increasing CPU voltage may result in damage to your CPU or reduce the useful life of the
CPU.
Normal CPU Vcore
Displays the normal operating voltage of your CPU.
- 49 -
BIOS Setup
2-10 Load Fail-Safe Defaults
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
Standard CMOS Features
Load Fail-Safe Defaults
`
`
Advanced BIOS Features
Integrated Peripherals
Load Optimized Defaults
Set Supervisor Password
`
`
Power Management Setup
PnP/PCI Configurations
`
`
PC Health Status
MB Intelligent Tweaker(M.I.T.)
Set User Password
Load Fail-Safe DefaultsSave
(Y/N)?
N Setup
& Exit
Exit Without Saving
ESC: Quit
KLJI: Select Item
F11: Save CMOS to BIOS
F8: Q-Flash
F10: Save & Exit Setup
F12: Load CMOS from BIOS
Load Fail-Safe Defaults
Press <Enter> on this item and then press the <Y> key to load the safest BIOS default settings.
In case system instability occurs, you may try to load Fail-Safe defaults, which are the safest and most
stable BIOS settings for the motherboard.
2-11 Load Optimized Defaults
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
Standard CMOS Features
Load Fail-Safe Defaults
`
`
Advanced BIOS Features
Integrated Peripherals
Load Optimized Defaults
Set Supervisor Password
`
`
Power Management Setup
PnP/PCI Configurations
`
`
PC Health Status
MB Intelligent Tweaker(M.I.T.)
Set User Password
Load Optimized DefaultsSave
(Y/N)?
N Setup
& Exit
Exit Without Saving
ESC: Quit
KLJI: Select Item
F11: Save CMOS to BIOS
F8: Q-Flash
F10: Save & Exit Setup
F12: Load CMOS from BIOS
Load Optimized Defaults
Press <Enter> on this item and then press the <Y> key to load the optimal BIOS default settings. The
BIOS defaults settings helps the system to operate in optimum state. Always load the Optimized defaults
after updating the BIOS or after clearing the CMOS values.
GA-EP31-DS3L Motherboard
- 50 -
2-12 Set Supervisor/User Password
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
Standard CMOS Features
Load Fail-Safe Defaults
`
`
Advanced BIOS Features
Integrated Peripherals
Load Optimized Defaults
Set Supervisor Password
`
`
Power Management Setup
PnP/PCI Configurations
Enter Password:
PC Health Status
MB Intelligent Tweaker(M.I.T.)
Set User Password
Save & Exit Setup
`
`
Exit Without Saving
ESC: Quit
KLJI: Select Item
F11: Save CMOS to BIOS
F8: Q-Flash
F10: Save & Exit Setup
F12: Load CMOS from BIOS
Change/Set/Disable Password
Press <Enter> on this item and type the password with up to 8 characters and then press <Enter>. You
will be requested to confirm the password. Type the password again and press <Enter>.
The BIOS Setup program allows you to specify two separate passwords:
Supervisor Password
When a system password is set and the Password Check item in Advanced BIOS Features is
set to Setup, you must enter the supervisor password for entering BIOS Setup and making BIOS
changes.
When the Password Check item is set to System, you must enter the supervisor password (or
user password) at system startup and when entering BIOS Setup.
User Password
When the Password Check item is set to System, you must enter the supervisor password (or
user password) at system startup to continue system boot. In BIOS Setup, you must enter the
supervisor password if you wish to make changes to BIOS settings. The user password only
allows you to view the BIOS settings but not to make changes.
To clear the password, press <Enter> on the password item and when requested for the password,
press <Enter> again. The message "PASSWORD DISABLED" will appear, indicating the password has
been cancelled.
- 51 -
BIOS Setup
2-13 Save & Exit Setup
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
Standard CMOS Features
`
`
Advanced BIOS Features
Integrated Peripherals
`
`
Power Management Setup
PnP/PCI Configurations
`
`
PC Health Status
MB Intelligent Tweaker(M.I.T.)
Load Fail-Safe Defaults
Load Optimized Defaults
Set Supervisor Password
Save to CMOS and EXIT (Y/N)?
Y Password
Set User
Save & Exit Setup
Exit Without Saving
ESC: Quit
KLJI: Select Item
F11: Save CMOS to BIOS
F8: Q-Flash
F10: Save & Exit Setup
F12: Load CMOS from BIOS
Save Data to CMOS
Press <Enter> on this item and press the <Y> key. This saves the changes to the CMOS and exits the
BIOS Setup program. Press <N> or <Esc> to return to the BIOS Setup Main Menu.
2-14 Exit Without Saving
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
Standard CMOS Features
`
`
Advanced BIOS Features
Integrated Peripherals
`
`
Power Management Setup
PnP/PCI Configurations
`
`
PC Health Status
MB Intelligent Tweaker(M.I.T.)
Load Fail-Safe Defaults
Load Optimized Defaults
Set Supervisor Password
Quit Without Saving (Y/N)?
N Password
Set User
Save & Exit Setup
Exit Without Saving
ESC: Quit
KLJI: Select Item
F11: Save CMOS to BIOS
F8: Q-Flash
F10: Save & Exit Setup
F12: Load CMOS from BIOS
Abandon all Data
Press <Enter> on this item and press the <Y> key. This exits the BIOS Setup without saving the
changes made in BIOS Setup to the CMOS. Press <N> or <Esc> to return to the BIOS Setup Main Menu.
GA-EP31-DS3L Motherboard
- 52 -
Chapter 3 Drivers Installation
• Before installing the drivers, first install the operating system. (The following instructions use
Windows XP as the example operating system.)
• After installing the operating system, insert the motherboard driver disk into your optical drive.
The driver Autorun screen is automatically displayed which looks like that shown in the screen
shot below. (If the driver Autorun screen does not appear automatically, go to My Computer,
double-click the optical drive and execute the Run.exe program.)
3-1
Installing Chipset Drivers
After inserting the driver disk, "Xpress Install" will automatically scan your system and then list all the
drivers that are recommended to install. You can click the Install All button and "Xpress Install" will
install all the recommended drivers. Or click Install Single Items to manually select the drivers you
wish to install.
• Please ignore the popup dialog box(es) (e.g. the Found New Hardware Wizard) displayed
when "Xpress Install" is installing the drivers. Failure to do so may affect the driver installation.
• Some device drivers will restart your system automatically during the driver installation.
After the system restart, "Xpress Install" will continue to install other drivers.
• After the drivers are installed, follow the onscreen instructions to restart your system. You
can install other applications included in the motherboard driver disk.
• For USB 2.0 driver support under the Windows XP operating system, please install the
Windows XP Service Pack 1 or later. After installing the SP1 (or later), if a question mark still
exists in Universal Serial Bus Controller in Device Manager, please remove the
question mark (by right-clicking your mouse and select Uninstall) and restart the system.
(The system will then autodetect and install the USB 2.0 driver.)
- 53 -
Drivers Installation
3-2
Application Software
This page displays all the utilities and applications that GIGABYTE develops and some free software.
You can click the Install button on the right of an item to install it.
3-3
Technical Manuals
This page provides GIGABYTE's application guides, content descriptions for this driver disk, and the
motherboard manuals.
GA-EP31-DS3L Motherboard
- 54 -
3-4
Contact
Click the URL on this page to link to the GIGABYTE Web site. Or read the last page of this manual to check
the contact information for GIGABYTE Taiwan headquarter or worldwide branch offices.
3-5
System
This page provides the basic system information.
- 55 -
Drivers Installation
3-6
Download Center
To update the BIOS, drivers, or applications, click the Download Center button to link to the GIGABYTE
Web site. The latest version of the BIOS, drivers, or applications will be displayed.
GA-EP31-DS3L Motherboard
- 56 -
Chapter 4 Unique Features
4-1
Xpress Recovery2
Xpress Recovery2 is a utility that allows you to quickly compress and
back up your system data and perform restoration of it. Supporting
NTFS, FAT32, and FAT16 file systems, Xpress Recovery2 can back
up data on PATA and SATA hard drives and restore it.
Before You Begin:
• Xpress Recovery2 will check the first physical hard drive* for the operating system. Xpress
Recovery2 can only back up/restore the first physical hard drive that has the operating system
installed.
• As Xpress Recovery2 will save the backup file at the end of the hard drive, make sure to leave
enough unallocated space in advanced (10 GB or more is recommended; actual size requirements vary, depending on the amount of data).
• It is recommended to back up your system soon after the operating system and drivers are
installed.
• The amount of data and hard drive access speed may affect the speed at which the data is backed
up/restored.
• It takes longer to back up a hard drive than to restore it.
System Requirements:
•
•
•
•
Intel ® platform
At least 64 MB of system memory
VESA compatible graphics card
Windows ® XP with SP1 or later
• Xpress Recovery and Xpress Recovery2 are different utilities. For example, a backup file
created with Xpress Recovery cannot be restored using Xpress Recovery2.
• USB hard drives are not supported.
• Hard drives in RAID/AHCI mode are not supported.
"*" Xpress Recovery2 checks the first physical hard drive in the following sequence: The first PATA
IDE connector, the second PATA IDE connector, the first SATA connector, the second SATA
connector and so forth. For example, when hard drives are attached to the first IDE and the first
SATA connectors, the hard drive on the first IDE connector is the first physical drive. When hard
drives are attached to the first and second SATA connectors, the hard drive on the first SATA
connector is the first physical drive.
- 57 -
Unique Features
Installation and Configuration
(The following procedure uses Windows XP as the example operating system.)
A. Installing Windows XP and Partitioning the Hard Drive
1.
2.
Set CD-ROM drive as the first boot device under "Advanced BIOS Features" in the BIOS Setup
program. Save the changes and exit.
When partitioning your hard drive (Figure 1), make sure to leave unallocated space for Xpress
Recovery2 (10 GB or more is recommended; actual size requirements vary, depending on the
amount of data) (Figure 2).
Figure 1
3.
Figure 2
Select a file system (for example, NTFS) and begin the installation of the operating system (Figure 3).
Figure 3
GA-EP31-DS3L Motherboard
- 58 -
4.
After the operating system is installed, right-click the My Computer icon on your desktop and
select Manage (Figure 4). Go to Computer Management to check disk allocation. Xpress
Recovery2 will save the backup file to the unallocated space (black stripe along the top)(Figure 5).
Please note that if there is no enough unallocated space, Xpress Recovery2 cannot save the
backup file.
Figure 5
Figure 4
5.
If your hard drive is not properly partitioned before you install the operating system, you may
create new partitions using free space on your hard drive (Figure 6, 7). However, if Disk
Management shows the hard drive only contains the System partition without any unallocated
space, you will not be able to create new partitions or use Xpress Recovery2. If this occurs,
reinstall the operating system and re-partition your hard drive.
Figure 6
In the New Partition Wizard, you MUST select Primary
partition. This will reserve unallocated space for Xpress
Recovery2 to use.
Figure 7
- 59 -
Unique Features
B. Accessing Xpress Recovery2
1.
Boot from the motherboard driver disk to access Xpress Recovery2 for the first time. When you
see the following message: Press any key to startup Xpress Recovery2
(Figure 8), press any key to enter Xpress Recovery2.
.
.
Boot from CD/DVD:
Press any key to startup XpressRecovery2.....
2.
Figure 8
After you use the backup function in Xpress Recovery2 for the first time, Xpress Recovery2 will
stay permanent in your hard drive. If you wish to enter Xpress Recovery2 later, simply press
<F9> during the POST (Figure 9).
Award Modular BIOS v6.00PG, An Energy Star Ally
Copyright (C) 1984-2008, Award Software, Inc.
EP31-DS3L E5
.
.
.
.
<DEL>: BIOS Setup <F9>: XpressRecovery2 <F12>: Boot Menu <End>: Qflash
07/21/2008-P31-ICH7-6A99OG09C-00
Figure 9
C. Using the Backup Function in Xpress Recovery2
1.
2.
Select BACKUP to start backing up your hard drive data (Figure 10).
Xpress Recovery2 will then begin to search the first physical hard drive as the target drive and
detect whether this hard drive contains the Windows operating system. When the Windows
operating system is detected, Xpress Recovery2 will begin the backup process (Figure 11).
Figure 10
3.
Figure 11
When finished, go to Disk Management to check disk allocation.
Xpress Recovery2 will automatically create a
new partition to store the backup image file.
Figure 12
GA-EP31-DS3L Motherboard
- 60 -
D. Using the Restore Function in Xpress Recovery2
Select RESTORE to restore the backup to your hard drive in case the system breaks down. The
RESTORE option will not be present if no backup is created before (Figure 13, 14).
Figure 13
Figure 14
E. Removing the Backup
1.
2.
If you wish to remove the backup file, select REMOVE (Figure 15).
After the backup file is removed, no backup image file will be present in Disk Management and
hard drive space will be freed up (Figure 16).
Figure 15
Figure 16
F. Exiting Xpress Recovery2
Select REBOOT to exit Xpress Recovery2.
Figure 17
- 61 -
Unique Features
4-2
BIOS Update Utilities
GIGABYTE motherboards provide two unique BIOS update tools, Q-Flash TM and @BIOS TM. GIGABYTE
Q-Flash and @BIOS are easy-to-use and allow you to update the BIOS without the need to enter MSDOS mode. Additionally, this motherboard features the DualBIOS TM design, which enhances protection
for the safety and stability of your computer by adding one more physical BIOS chip.
What is DualBIOSTM ?
Motherboards that support DualBIOS have two BIOS onboard, a main BIOS
and a backup BIOS. Normally, the system works on the main BIOS.
However, if the main BIOS is corrupted or damaged, the backup BIOS will take over on the next system
boot and copy the BIOS file to the main BIOS to ensure normal system operation. For the sake of
system safety, users cannot update the backup BIOS manually.
What is Q-FlashTM ?
With Q-Flash you can update the system BIOS without having to enter
operating systems like MS-DOS or Window first. Embedded in the BIOS, the
Q-Flash tool frees you from the hassles of going through complicated BIOS flashing process.
What is @BIOS TM?
@BIOS allows you to update the system BIOS while in the Windows
environment. @BIOS will download the latest BIOS file from the nearest
@BIOS server site and update the BIOS.
4-2-1 Updating the BIOS with the Q-Flash Utility
A. Before You Begin:
1.
2.
3.
From GIGABYTE's website, download the latest compressed BIOS update file that matches your
motherboard model.
Extract the file and save the new BIOS file (e.g. EP31DS3L.F1) to your floppy disk, USB flash
drive, or hard drive. Note: The USB flash drive or hard drive must use FAT32/16/12 file system.
Restart the system. During the POST, press the <End> key to enter Q-Flash. Note: You can
access Q-Flash by either pressing the <End> key during the POST or pressing the <F8> key in
BIOS Setup. However, if the BIOS update file is saved to a hard drive in RAID/AHCI mode or a hard
drive attached to an independent IDE/SATA controller, use the <End> key during the POST to
access Q-Flash.
Award Modular BIOS v6.00PG, An Energy Star Ally
Copyright (C) 1984-2008, Award Software, Inc.
EP31-DS3L E5
.
.
.
.
<DEL>: BIOS Setup <F9>: XpressRecovery2 <F12>: Boot Menu <End>: Qflash
07/21/2008-P31-ICH7-6A99OG09C-00
Because BIOS flashing is potentially risky, please do it with caution. Inadequate BIOS
flashing may result in system malfunction.
GA-EP31-DS3L Motherboard
- 62 -
B. Updating the BIOS
When updating the BIOS, choose the location where the BIOS file is saved. The follow procedure
assumes that you save the BIOS file to a floppy disk.
Step 1:
1. Insert the floppy disk containing the BIOS file into the floppy disk drive. In the main menu of
Q-Flash, use the up or down arrow key to select Update BIOS from Drive and press <Enter>.
• The Save Main BIOS to Drive option allows you to save the current BIOS file.
• Q-Flash only supports USB flash drive or hard drives using FAT32/16/12 file system.
• If the BIOS update file is saved to a hard drive in RAID/AHCI mode or a hard drive
attached to an independent IDE/SATA controller, use the <End> key during the POST to
access Q-Flash.
2.
Select Floppy A and press <Enter>.
Q-Flash Utility v2.05
Flash Type/Size.................................MXIC 25L8005
Keep DMI Data Enable
Update BIOS from Drive
Save
BIOSfound
to Drive
0 file(s)
KL:Move
ESC:Reset <Drive>
F10:Power Off
<Drive>
EnterFloppy
: Run A
HDD 0-0
Total size : 0
3.
1M
Free size : 0
Select the BIOS update file and press <Enter>.
Make sure the BIOS update file matches your motherboard model.
Step 2:
The process of the system reading the BIOS file from the floppy disk is displayed on the screen. When
the message "Are you sure to update BIOS?" appears, press <Enter> to begin the BIOS update. The
monitor will display the update process.
• Do not turn off or restart the system when the system is reading/updating the BIOS.
• Do not remove the floppy disk, USB flash drive, or hard drive when the system is
updating the BIOS.
Step 3:
When the update process is complete, press any key to return to the main menu.
Q-Flash Utility v2.05
Flash Type/Size.................................MXIC 25L8005
Enter : Run
Keep DMI Data Enable
Update
from Drive
!! Copy
BIOSBIOS
completed
- Pass !!
Save BIOS to Drive
Please
press any key
to continue
KL:Move
ESC:Reset
- 63 -
1M
F10:Power Off
Unique Features
Step 4:
Press <Esc> and then <Enter> to exit Q-Flash and reboot the system. As the system boots, you should
see the new BIOS version is present on the POST screen.
Step 5:
During the POST, press <Delete> to enter BIOS Setup. Select Load Optimized Defaults and press
<Enter> to load BIOS defaults. System will re-detect all peripherals devices after a BIOS update, so we
recommend that you reload BIOS defaults.
CMOS Setup Utility-Copyright (C) 1984-2008 Award Software
`
`
Standard CMOS Features
Advanced BIOS Features
Load Fail-Safe Defaults
Load Optimized Defaults
`
`
Integrated Peripherals
Power Management Setup
Set Supervisor Password
Set User Password
`
`
PnP/PCI Configurations
PC Health Status
Save & Exit Setup
Exit Without Saving
`
MB Intelligent Tweaker(M.I.T.)
ESC: Quit
F8: Q-Flash
KLJI: Select Item
F10: Save & Exit Setup
F11: Save CMOS to BIOS
F12: Load CMOS from BIOS
Time, Date, Hard Disk Type...
Press <Y> to load BIOS defaults
Step 6:
Select Save & Exit Setup and then press <Y> to save settings to CMOS and exit BIOS Setup. The
procedure is complete after the system restarts.
GA-EP31-DS3L Motherboard
- 64 -
4-2-2 Updating the BIOS with the @BIOS Utility
A. Before You Begin:
1.
2.
3.
4.
In Windows, close all applications and TSR (Terminate and Stay Resident) programs. This helps
prevent unexpected failures when performing a BIOS update.
During the BIOS update process, ensure the Internet connection is stable and do NOT interrupt the
Internet connection (for example, avoid a power loss or switching off the Internet). Failure to do so
may result in a corrupted BIOS or a system that is unable to start.
Do not use the G.O.M. (GIGABYTE Online Management) function when using @BIOS.
GIGABYTE product warranty does not cover any BIOS damage or system failure resulting from an
inadequate BIOS flashing.
B. Using @BIOS:
1.
Update the BIOS Using the Internet Update Function:
Click Update BIOS from GIGABYTE Server, select the @BIOS server site closest to your
location and then download the BIOS file that matches your motherboard model. Follow the onscreen instructions to complete.
If the BIOS update file for your motherboard is not present on the @BIOS server site, please
manually download the BIOS update file from GIGABYTE's website and follow the instructions in "Update the BIOS without Using the Internet Update Function" below.
2.
Update the BIOS without Using the Internet Update Function:
Click Update BIOS from File, then select the location where you save the BIOS update file
obtained from the Internet or through other source. Follow the on-screen instructions to complete.
3.
Save Current BIOS to File:
Click Save Current BIOS to save the current BIOS file.
C. After Updating the BIOS:
After updating the BIOS, restart your system. As the system boots, press <Delete> to enter the BIOS
Setup program. Select Load Optimized Defaults and press <Enter> to load BIOS defaults.
Make sure that the BIOS file to be flashed matches your motherboard model. Updating the
BIOS with an incorrect BIOS file could cause your system not to boot.
- 65 -
Unique Features
4-3
EasyTune 5 Pro
EasyTune TM 5 Pro, an easy-to-use and convenient system overclocking and management tool, lets
you do overclock and overvoltage in Windows environment, eliminating the need to enter the BIOS
Setup program. EasyTune 5 Pro provides the following functions (Note 1): overclocking/overvoltage,
C.I.A./M.I.B. (Note 2), smart fan control, and hardware monitoring and warning. (For instructions on using
EasyTune5 Pro, read or download the information on/from the Support\Motherboard\Utility page on our
website.)
The EasyTune 5 Pro Interface
Button Information Table
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Button/Display
OVERCLOCKING
C.I.A./M.I.B.
SMART FAN
PC HEALTH
GO
EASY MODE/ADVANCED MODE/
GRAPHICS
Display Area
Function LEDs
Live Update
Help
Exit/Minimize
Turbo Boost
Description
Enters the OVERCLOCKING setting page
Enters the C.I.A. and M.I.B. setting page
Enters the SMART FAN setting page
Enters the PC HEALTH setting page
Confirmation/execution button
Toggles among Easy Mode, Advanced Mode, and
Graphics Mode
Displays the CPU frequency
Shows the supported function(s)
Go to GIGABYTE website to update EasyTune 5 Pro
Opens EasyTune 5 Pro help file
Quits or minimizes the EasyTune 5 Pro interface
Performance Enhancement
Incorrectly doing overclock/overvoltage may result in damage to CPU, chipset, or memory and
reduce the useful life of these components. Before you do the overclock/overvoltage, make sure
that you fully know how to use each function of EasyTune 5 Pro, or system instability or other
unexpected results may occur.
(Note 1) Available functions in EasyTune 5 Pro may differ by motherboard model.
(Note 2) C.I.A. and M.I.B. may provide optimizations for CPU and memory, enhancing the
performance of these components.
GA-EP31-DS3L Motherboard
- 66 -
4-4
Dynamic Energy Saver Advanced
GIGABYTE Dynamic Energy Saver Advanced (Note 1)(Note 2) is a revolutionary technology that delivers
unparalleled power savings with a click of the button. Featuring an advanced proprietary hardware and
software design, GIGABYTE Dynamic Energy Saver Advanced is able to provide exceptional power
savings and enhanced power efficiency without sacrificing computing performance.
The Dynamic Energy Saver Advanced Interface
A. Meter Mode
In Meter Mode, GIGABYTE Dynamic Energy Saver Advanced shows how much power they have
saved in a set period of time.
Meter Mode - Button Information Table
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Button Description
Dynamic Energy Saver On/Off Switch (Default: Off)
Motherboard Phase LED On/Off Switch (Default: On)
Dynamic CPU Frequency Function On/Off Switch (Default: Off) (Note 3)
CPU Throttling Display
3-Level CPU Voltage Switch (Default:1) (Note 4)
CPU Voltage Display
Dynamic Power Phase Status
Current CPU Power Consumption
Meter Time
Power Saving (Calculate power savings based on time)
Meter/Timer Reset Switch
Meter Mode Switch
Total Mode Switch
Close (Application will enter Stealth Mode)
Minimize (Application will continue to run in taskbar)
INFO/Help
Live Utility Update (Check for the latest utility version)
• The above data is for reference only. Actual performance may vary depending on motherboard model.
• CPU Power and Power Scores are for reference only. Actual results may vary based on testing method.
- 67 -
Unique Features
B. Total Mode
In Total Mode, users are able to see how much total power savings they have accumulated in a set
period of time since activating Dynamic Energy Saver Advanced for the first time (Note 5).
Total Mode - Button Information Table
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Button Description
Dynamic Energy Saver On/Off Switch (Default: Off)
Motherboard Phase LED On/Off Switch (Default: On)
Dynamic CPU Frequency Function On/Off Switch (Default: Off)
CPU Throttling Display
3-Level CPU Voltage Switch (Default:1) (Note 4)
CPU Voltage Display
Dynamic Power Phase Status
Current CPU Power Consumption
Time/Date Dynamic Energy Saver Enabled
Total Power Savings (Total power saving with Dynamic Energy Saver enabled) (Note 6)
Dynamic Energy Saver Meter Mode Switch
Dynamic Energy Saver Total Mode Switch
Close (Application will enter Stealth Mode)
Minimize (Application will continue to run in taskbar)
INFO/Help
Live Utility Update (Check for the latest utility version)
C. Stealth Mode
In Stealth Mode, the system continues to work with the user-defined power saving settings, even after
the system is restarted. Re-enter the application only if you want to make any changes or completely
close the application.
(Note 1) Due to the hardware limitation, you must install the Intel® Core 2 Extreme/ Core 2 Quad/
Core 2 Duo/ Pentium Dual-Core/ Celeron Dual-Core/ Celeron 400 Series CPU to enable
support for Dynamic Energy Saver.
(Note 2) Before using the DES function, make sure the CPU Enhanced Halt (C1E) and CPU EIST
Function items in the BIOS Setup program are set to Enabled.
(Note 3) Maximize system power saving with Dynamic Frequency Function; system performance
may be affected.
(Note 4) 1: Normal Power Saving (default); 2: Advanced Power Saving; 3: Extreme Power Saving.
(Note 5) The total amount of power saved will be recorded until re-activated when only the Dynamic
Power Saver is under the enable status, and power savings meter is unable to reset to zero.
(Note 6) Dynamic Energy Saver Meter will automatically reset when the total power saving reaches
99999999 Watts.
GA-EP31-DS3L Motherboard
- 68 TM
TM
TM
Chapter 5 Appendix
5-1
Configuring Audio Input and Output
5-1-1 Configuring 2/4/5.1/7.1-Channel Audio
The motherboard provides six audio jacks on the
back panel which support 2/4/5.1/7.1-channel audio.
Center/Subwoofer
The picture to the right shows the default audio
Line In
Speaker Out
jack assignments. The integrated HD (High Definition)
Front Speaker Out
Rear Speaker Out
audio provides jack retasking capability that
Mic In
allows the user to change the function for each
Side Speaker Out
jack through the audio driver. For example, in a
4-channel audio configuration, if a Rear speaker is plugged into the default Center/Subwoofer speaker
out jack, you can retask the Center/Subwoofer speaker out jack to be Rear speaker out.
• To install a microphone, connect your microphone to the Mic in jack and manually configure
the jack for microphone functionality.
• Audio signals will be present on both of the front and back panel audio connections simultaneously.
If you want to mute the back panel audio (only supported when using an HD front panel audio
module), refer to instructions on the next page.
High Definition Audio (HD Audio)
HD Audio includes multiple high quality digital-to-analog converters (DACs) that support 44.1KHz/
48KHz/ 96KHz/192KHz sampling rate. HD Audio features multistreaming capabilities that allow multiple
audio streams (in and out) to be simultaneously processed. For example, users can listen to MP3
music, have an Internet chat, make a telephone call over the Internet, and etc. all at the same time.
A. Configuring Speakers:
(The following instructions use Windows XP as the example operating system.)
Step 1:
After installing the audio driver, the Audio
Manager icon
will appear in your system tray.
Double-click the icon to access the Audio Control
Panel.
Before installing the audio driver, make sure the "Microsoft UAA Bus driver for High Definition
Audio" has been installed from the motherboard driver disk and your operating system has
been updated with the latest Service Pack for Windows.
(Note)
2/4/5.1/7.1-Channel Audio Configurations:
Refer to the following for multi-channel speaker configurations.
• 2-channel audio: Headphone or Line out.
• 4-channel audio: Front speaker out and Rear speaker out.
• 5.1-channel audio: Front speaker out, Rear speaker out, and Center/Subwoofer speaker out.
• 7.1-channel audio: Front speaker out, Rear speaker out, Center/Subwoofer speaker out, and Side speaker out.
- 69 -
Appendix
Step 2:
Click the Audio I/O tab. In the speaker list on the
left, select 2CH Speaker, 4CH Speaker, 6CH
Speaker, or 8CH Speaker according to the type of
speaker configuration you wish to set up.
Step 3:
Everytime you connect an audio device to an audio
jack, the Connected device box appears. Select
the device according to the type of device you
connect. Then click OK to complete the configuration.
B. Configuring Sound Effect:
You may configure an audio environment on the Sound Effect tab.
C. Activating an AC'97 Front Panel Audio Module:
If your chassis provides an AC'97 front panel audio
module, to activate the AC'97 functionality, click the
tool icon on the Audio I/O tab. On the Connector
Settings box, select the Disable front panel jack
detection check box. Click OK to complete.
D. Muting the Back Panel Audio (For HD Audio Only):
Click the tool icon on the Audio I/O tab. On the
Connector Settings box, select the Mute rear
panel output when front headphone plugged
in check box. Click OK to complete.
GA-EP31-DS3L Motherboard
- 70 -
5-1-2 Installing the S/PDIF In Cable (Optional)
The S/PDIF in cable provides S/PDIF in functionality.
Optical
S/PDIF In
Coaxial
S/PDIF In
S/PDIF In:
The S/PDIF in jacks allow you to input digital audio signals to the computer for audio processing.
A. Installing the S/PDIF In Cable:
Step 1:
First, attach the connector at the end of the cable to the SPDIF_I
header on your motherboard.
Step 2:
Secure the metal bracket to the chassis back panel with a
screw.
- 71 -
Appendix
S/PDIF Out:
The S/PDIF out jacks can transmit audio signals to an external decoder for decoding to get the best
audio quality.
B. Conneting a S/PDIF out Cable
Connect a S/PDIF coaxial cable or a S/PDIF optical cable (either
one) to an external decoder for transmitting the S/PDIF digital
audio signals.
S/PDIF Coaxial Cable
S/PDIF Optical Cable
C. Configuring S/PDIF out:
Click the tool icon in the DIGITAL section. In the S/PDIF
In/Out Settings dialog box, select an output sampling
rate and select (or disable) the output source. Click
OK to complete the configuration.
(Note)
The actual locations of the SPDIF In and SPDIF Out connectors may differ by model.
GA-EP31-DS3L Motherboard
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5-1-3 Configuring Microphone Recording
Step 1:
After installing the audio driver, the Audio
will appear in your system tray.
Manager icon
Double-click the icon to access the Audio Control
Panel.
Step 2:
Connect your microphone to the Mic in jack (pink)
on the back panel or the Mic in jack (pink) on the front
panel. Then configure the jack for microphone
functionality.
Note: The microphone functions on the front panel
and back panel cannot be used at the same time.
Step 3:
Locate the Volume icon
in your system tray
and click it to open the volume control panel.
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Appendix
Step 4:
To hear the sound being recorded during the recording process when using the microphone function on
the front panel, do not select the Mute check box
under Front Pink In or Front Green In in Master
Volume. It is recommended that you set the volume
at a middle level.
or
To hear the sound being recorded during the recording process when using the microphone function on
the back panel, do not select the Mute check box
under Rear Pink In in Master Volume. It is recommended that you set the volume at its middle level.
(Note)
If you cannot find the volume control options you
need in Master Volume, go to the Options menu
and then choose Properties. Select the volume control options you wish to show and click OK to
complete.
Step 5:
Next, while in Master Volume, go to Options and
click Properties. In the Mixer device list, select
Realtek HD Audio Input. Then set the recording
sound level properly. Do NOT mute the recording
sound, or you will not hear any sound when playing
back the recording you just made.
Select Realtek HD Audio Input in the Mixer device list
(Note)
Based on the audio specifications, to adjust the recording sound, use the Recording option to set the
recording sound for your recording device(s)
altogether.
Recording Control
GA-EP31-DS3L Motherboard
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Step 6:
To raise the recording and playing sound for the
microphone, go to Options in Master Volume and
select Advanced Controls. Click the Advanced
button under a volume control option (e.g. Front Green
In, Front Pink In). In the Other Controls field, select
the 1 Microphone Boost check box.
Step 7:
After completion, click Start, point to All Programs,
point to Accessories, point to Entertainment, and
then click Sound Recorder to begin the sound
recording.
5-1-4 Using the Sound Recorder
Recording the Sound:
1. Make sure you have connected the audio input
device (e.g. microphone) to the computer.
2. On the File menu, choose New.
3. To record a sound file, click the Recording button
.
4. To stop the recording, click the Stop button
.
Be sure to save the recording upon completion.
Playing the Sound:
1. On the File menu, choose Open.
2. In the Open dialog box, select the sound (.wav)
file you wish to play.
3. To play a sound file, click the Play button
.
4. To stop playing, click the Stop button
.
to
5. You may use the Fast Forward button
move to the beginning of a file or the Fast Backward button
to the end.
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Appendix
5-2
Troubleshooting
5-2-1 Frequently Asked Questions
To read more FAQs for your motherboard, please go to the Support\Motherboard\FAQ page on
GIGABYTE's website.
Q: In the BIOS Setup program, why are some BIOS options missing?
A: Some advanced options are hidden in the BIOS Setup program. Press <Delete> to enter BIOS Setup
during the POST. In the Main Menu, press <Ctrl>+<F1> to show the advanced options.
Q: Why is the light of my keyboard/optical mouse still on after the computer shuts down?
A: Some motherboard provides a small amount of standby power after the computer shuts down and
that's why the light is still on.
Q: How do I clear the CMOS values?
A: If your motherboard has a clearing CMOS jumper, refer to the instructions on the CLR_CMOS jumper
in Chapter 1 to short the jumper to clear the CMOS values. If your board doesn't have this jumper,
refer to the instructions on the motherboard battery in Chapter 1. You can temporarily remove the
battery from the battery holder to stop supplying power to the CMOS, which will clear the CMOS
values after about one minute. Refer to the steps below:
Steps:
1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for one minute.
(Or use a metal object like a screwdriver to touch the positive and negative terminals of the battery
holder, making them short for 5 seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
5. Press <Delete> to enter BIOS Setup. Select "Load Fail-Safe Defaults" (or "Load Optimized Defaults")
to load BIOS default settings.
6. Saves changes and exit BIOS Setup (select "Save & Exit Setup") to restart your computer.
Q: Why do I still get a weak sound even though I have turned my speaker to the maximum volume?
A: Make sure your speaker is equipped with an internal amplifier. If not, try a speaker with power/
amplifier.
Q: What do the beeps emitted during the POST mean?
A: The following Award BIOS beep code descriptions may help you identify possible computer problems.
(For reference only.)
1 short: System boots successfully
2 short: CMOS setting error
1 long, 1 short: Memory or motherboard error
1 long, 2 short: Monitor or graphics card error
1 long, 3 short: Keyboard error
1 long, 9 short: BIOS ROM error
Continuous long beeps: Graphics card not inserted properly
Continuous short beeps: Power error
GA-EP31-DS3L Motherboard
- 76 -
5-2-2 Troubleshooting Procedure
If you encounter any troubles during system startup, follow the troubleshooting procedure below to
solve the problem.
START
Turn off the power. Remove all peripherals, connecting cables, and
power cord etc.
Make sure the motherboard does not short-circuit with the chassis
Yes
or other metal objects.
No
Isolate the short
circuit.
The problem is verified and solved.
Check if the CPU cooler is attached to the CPU securely. Is the
power connector of the CPU cooler connected to the CPU_FAN
header properly?
Yes
No
Secure the CPU
cooler on the CPU.
Connect the CPU
cooler power cable
to the motherboard.
The problem is verified and solved.
Check if the memory is installed properly on the memory slot.
Yes
No
Correctly insert the
memory into the
memory socket.
The problem is verified and solved.
Insert the graphics card. Connect the ATX main power cable and the 12V
power cable. Turn on the power to start the computer.
Make sure the graphics card is securely
seated in the expansion slot and power
connectors are firmly attached.
A
(Continued...)
- 77 -
Appendix
A
When the computer is turned on, is the CPU cooler running?
Yes
No
The power supply,
CPU or CPU socket
might fail.
The problem is verified and solved.
Check if there is display on your monitor.
Yes
No
The graphics card,
expansion slot, or
monitor might fail.
The problem is verified and solved.
Turn off the computer. Plugg in the keyboard and mouse and restart the
computer.
Check if the keyboard is working properly.
No
The keyboard or
keyboard connector might fail.
Yes
Press <Delete> to enter BIOS Setup. Select "Load Fail-Safe Defaults"
(or "Load Optimized Defaults"). Select "Save & Exit Setup" to save
changes and exit BIOS Setup.
Turn off the computer and connect the IDE/SATA devices.
Check if the system can boot successfully.
The problem is verified and solved.
No
The IDE/SATA
device, connector,
or cable might fail.
Yes
Reinstall the operating system. Reinstall other devices one by one (install
one device at one time and then boot the system to see if the device
The problem is verified and solved.
works successfully).
END
If the procedure above is unable to solve your problem, contact the place of purchase or local
dealer for help. Or go to the Support&Downloads\Technical Service Zone page to submit your
question. Our customer service staff will reply you as soon as possible.
GA-EP31-DS3L Motherboard
- 78 -
5-3
Regulatory Statements
Regulatory Notices
This document must not be copied without our written permission, and the contents there of must not be
imparted to a third party nor be used for any unauthorized purpose. Contravention will be prosecuted.
We believe that the information contained herein was accurate in all respects at the time of printing.
GIGABYTE cannot, however, assume any responsibility for errors or omissions in this text. Also note
that the information in this document is subject to change without notice and should not be construed as
a commitment by GIGABYTE.
Our Commitment to Preserving the Environment
In addition to high-efficiency performance, all GIGABYTE motherboards fulfill European Union regulations for RoHS (Restriction of Certain Hazardous Substances in Electrical and Electronic Equipment)
and WEEE (Waste Electrical and Electronic Equipment) environmental directives, as well as most
major worldwide safety requirements. To prevent releases of harmful substances into the environment
and to maximize the use of our natural resources, GIGABYTE provides the following information on
how you can responsibly recycle or reuse most of the materials in your "end of life" product.
Restriction of Hazardous Substances (RoHS) Directive Statement
GIGABYTE products have not intended to add and safe from hazardous substances (Cd, Pb, Hg, Cr+6,
PBDE and PBB). The parts and components have been carefully selected to meet RoHS requirement.
Moreover, we at GIGABYTE are continuing our efforts to develop products that do not use internationally
banned toxic chemicals.
Waste Electrical & Electronic Equipment (WEEE) Directive Statement
GIGABYTE will fulfill the national laws as interpreted from the 2002/96/EC WEEE (Waste Electrical and
Electronic Equipment) directive. The WEEE Directive specifies the treatment, collection, recycling and
disposal of electric and electronic devices and their components. Under the Directive, used equipment
must be marked, collected separately, and disposed of properly.
WEEE Symbol Statement
The symbol shown below is on the product or on its packaging, which indicates that this
product must not be disposed of with other waste. Instead, the device should be taken to
the waste collection centers for activation of the treatment, collection, recycling and
disposal procedure. The separate collection and recycling of your waste equipment at the
time of disposal will help to conserve natural resources and ensure that it is recycled in a
manner that protects human health and the environment. For more information about where you can
drop off your waste equipment for recycling, please contact your local government office, your
household waste disposal service or where you purchased the product for details of environmentally
safe recycling.
 When your electrical or electronic equipment is no longer useful to you, "take it back" to your local
or regional waste collection administration for recycling.
 If you need further assistance in recycling, reusing in your "end of life" product, you may contact us
at the Customer Care number listed in your product's user's manual and we will be glad to help you
with your effort.
- 79 -
Appendix
Finally, we suggest that you practice other environmentally friendly actions by understanding and
using the energy-saving features of this product (where applicable), recycling the inner and outer
packaging (including shipping containers) this product was delivered in, and by disposing of or
recycling used batteries properly. With your help, we can reduce the amount of natural resources
needed to produce electrical and electronic equipment, minimize the use of landfills for the disposal of
"end of life" products, and generally improve our quality of life by ensuring that potentially hazardous
substances are not released into the environment and are disposed of properly.
China Restriction of Hazardous Substances Table
The following table is supplied in compliance with China's Restriction of Hazardous Substances (China
RoHS) requirements:
GA-EP31-DS3L Motherboard
- 80 -
- 81 -
Appendix
GA-EP31-DS3L Motherboard
- 82 -
Contact Us
 GIGA-BYTE TECHNOLOGY CO., LTD.
Address: No.6, Bau Chiang Road, Hsin-Tien,
 NINGBO G.B.T. TECH. TRADING CO., LTD. - China
WEB address : http://www.gigabyte.cn
Taipei 231, Taiwan
TEL: +886-2-8912-4000
Shanghai
TEL: +86-21-63410999
FAX: +886-2-8912-4003
FAX: +86-21-63410100
Tech. and Non-Tech. Support (Sales/Marketing) :
Beijing
http://ggts.gigabyte.com.tw
WEB address (English): http://www.gigabyte.com.tw
TEL: +86-10-62102838
FAX: +86-10-62102848
WEB address (Chinese): http://www.gigabyte.tw
 G.B.T. INC. - U.S.A.
Wuhan
TEL: +1-626-854-9338
FAX: +1-626-854-9339
FAX: +86-27-87851330
GuangZhou
Tech. Support:
TEL: +86-20-87540700
http://rma.gigabyte-usa.com
FAX: +86-20-87544306
Web address: http://www.gigabyte.us
 G.B.T. INC (USA) - Mexico
Tel: +1-626-854-9338 x 215 (Soporte de habla hispano)
Chengdu
TEL: +86-28-85236930
FAX: +1-626-854-9339
Xian
Correo: [email protected]
Tech. Support:
TEL: +86-29-85531943
FAX: +86-29-85510930
http://rma.gigabyte-usa.com
Shenyang
Web address: http://latam.giga-byte.com/
 GIGA-BYTE SINGAPORE PTE. LTD. - Singapore
WEB address : http://www.gigabyte.sg
 Thailand
TEL: +86-24-83992901
WEB address : http://th.giga-byte.com
 Vietnam
WEB address : http://www.gigabyte.vn
TEL: +86-27-87851312
FAX: +86-28-85256822
FAX: +86-24-83992909
 GIGABYTE TECHNOLOGY (INDIA) LIMITED - India
WEB address : http://www.gigabyte.in
 Saudi Arabia
WEB address : http://www.gigabyte.com.sa
 GIGABYTE TECHNOLOGY PTY. LTD. - Australia
WEB address : http://www.gigabyte.com.au
- 83 -
Appendix
 G.B.T. TECHNOLOGY TRADING GMBH - Germany
WEB address : http://www.gigabyte.de
 G.B.T. TECH. CO., LTD. - U.K.
WEB address : http://www.giga-byte.co.uk
 GIGA-BYTE TECHNOLOGY B.V. - The Netherlands
 Hungary
WEB address : http://www.giga-byte.hu
 Turkey
WEB address : http://www.gigabyte.com.tr
 Russia
WEB address : http://www.giga-byte.nl
 GIGABYTE TECHNOLOGY FRANCE - France
WEB address : http://www.gigabyte.fr
 Sweden
WEB address : http://www.gigabyte.ru
 Poland
WEB address : http://www.gigabyte.pl
 Ukraine
WEB address : http://www.giga-byte.se
 Italy
WEB address : http://www.giga-byte.it
 Spain
WEB address : http://www.gigabyte.ua
 Romania
WEB address : http://www.gigabyte.com.ro
 Serbia
WEB address : http://www.giga-byte.es
 Greece
WEB address : http://www.giga-byte.gr
 Czech Republic
WEB address : http://www.gigabyte.co.yu
 Kazakhstan
WEB address : http://www.giga-byte.kz
WEB address : http://www.gigabyte.cz

You may go to the GIGABYTE website, select your language
in the language list on the top right corner of the website.
GIGABYTE Global Service System
To submit a technical or non-technical (Sales/
Marketing) question, please link to :
http://ggts.gigabyte.com.tw
Then select your language to enter the system.
GA-EP31-DS3L Motherboard
- 84 -
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