EPOX LXR Specifications
EP-68LXR
APentium®IIProcessorbasedAGPmainboard
TRADEMARK
All products and company names are trademarks or
registered trademarks of their respective holders.
These specifications are subject to change without
notice.
Manual Revision 2.3
June 25, 1998
EP-68LXR
Technical Support Services
If you need additional information, help during installation or normal use of this
product, please contact your retailer. If your retailer can not help, you may E-Mail us
with any questions at the following address tech@epox.com
Record your serial number before installing your EP-68LXR mainboard. (the serial
number is located near the ISA slots at the edge of the board)
EPoX EP-68LXR serial number:
__________________________
BIOS Upgrades
Please use either our Web Site or BBS for current BIOS Upgrades.
Internet Access
http://www.epox.com
sales@epox.com
tech@epox.com
Modem Access
886-2-2247-2742 (Taiwan)
31-182-618451 (The Netherlands)
You can access this number via a Hayes-compatible modem with a 2,400 to
28,800 baud rate. The following setup format is required:
8 Data Bits, No Parity, 1 Stop Bit.
If your modem is unable to connect at higher baud rates, try connecting at
2,400 baud before contacting Technical Support.
Thank you for using EPoX mainboards!
© Copyright 1997 EPoX Computer Company. All rights reserved.
EP-68LXR
User Notice
No part of this product, including the product and software may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language
in any form by any means without the express written permission of EPoX Computer
Company (here in after referred to as EPoX) except documentation kept by the
purchaser for backup purposes.
EPoX provides this manual “as is” without warranty of any kind, either express or
implied, including but not limited to the implied warranties or conditions of merchantability or fitness for a particular purpose. In no event shall EPoX be liable for any
loss or profits, loss of business, loss of use or data, interruption of business or for
indirect, special incidental, or consequential damages of any kind, even if EPoX has
been advised of the possibility of such damages arising from any defect or error in
the manual or product. EPoX may review this manual from time to time without
notice. For updated BIOS, drivers, or product release information you may visit
EPoX’s home page at: http://www.epox.com
Products mentioned in this manual are mentioned for identification purposes only.
Product names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies.
The product name and revision number are both printed on the mainboard
itself.
Handling Procedures
Static electricity can severely damage your equipment. Handle the EP-68LXR
and any other device in your system with care and avoid unneccessary contact with
system components on the mainboard.
Always work on an antistatic surface to avoid possible damage to the motherboard
from static discharge.
We assume no responsibility for any damage to the EP-68LXR mainboard that
results from failure to follow installation instructions or failure to observe safety
precautions.
CAUTION
The EP-68LXR mainboard is subject to
damage by static electricity. Always
observe the handling procedures.
EP-68LXR
Table of Contents
Section 1
Introduction
Components Checklist .................................... 1-1
Overview
Pentium II ....................................................... 1-2
S.E.C. Cartridge Terminology ......................... 1-3
Accelerated Graphics Port .............................. 1-4
Hardware Monitoring ..................................... 1-4
Desktop Management Interface ...................... 1-4
Power-On/Off (Remote) ................................. 1-5
System Block Diagram ................................... 1-6
Section 2
Features
EP-68LXR Features ....................................... 2-1
Section 3
Installation
EP-68LXR Detailed Layout ............................ 3-1
Easy Installation Procedure
Configure DIP Switch ..................................... 3-2
System Memory Configuration ........................ 3-3
Installing a Pentium® II Processor .................... 3-6
Device Connectors ......................................... 3-8
Section 4
Award BIOS Setup
BIOS Instructions ........................................... 4-1
Standard CMOS Setup .................................. 4-2
BIOS Features Setup ..................................... 4-3
Chipset Features Setup ................................... 4-8
Power Management Setup .............................. 4-13
PNP/PCI Configuration .................................. 4-17
Load Setup Defaults ....................................... 4-19
EP-68LXR
Integrated Peripherals ..................................... 4-19
Change Supervisor or User Password ............. 4-24
IDE HDD Auto Detection ............................... 4-24
HDD Low Level Format ................................. 4-27
Save & Exit Setup .......................................... 4-27
Exit Without Saving ......................................... 4-27
Section 5
DMI
DMI Access ................................................... 5-1
Section 7
Appendix
Appendix A
Memory Map ................................................. A-1
I/O Map ......................................................... A-1
Timer & DMA Channels Map ......................... A-2
Interrupt Map ................................................. A-2
RTC & CMOS RAM Map ............................ A-3
Appendix B
POST Codes ................................................. A-4
Unexpected Errors ......................................... A-7
Appendix C
Load Setup Defaults ....................................... A-8
EP-68LXR
Introduction
Section 1
INTRODUCTION
Components Checklist
ü
ü
ü
ü
ü
ü
A.
(1)
EP-68LXR mainboard
B.
(1)
EP-68LXR user’s manual
C.
(1)
Floppy ribbon cable
D.
(1)
Hard drive ribbon cable
E.
(1)
Heatsink Support Unit (optional)
F.
(1)
PS/2 Mouse Connector
G.
(1)
Bus master drivers
H.
(1)
COM Port/LPT Port Connector
USERS
MANUAL
G
F
C
EP-68LXR
D
B
IH
A
EPoX
Top Half
Bottom Half
C
D-R o m
or
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EF
Page 1-1
Introduction
EP-68LXR
Overview
Pentium II
The Pentium® II Processor is the follow-on to the Pentium® Processor. The
Pentium® II Processor, like the Pentium® Pro processor, implements a Dynamic
Execution micro-architecture -- a unique combination of multiple branch prediction,
data flow analysis, and speculative execution. This enables the Pentium® II Processor to deliver higher performance than the Pentium® processor, while maintaining
binary compatibility with all previous Intel architecture processors.
A significant feature of the Pentium® II Processor, from a system perspective, is the
built-in direct multiprocessing support. In order to achieve multiprocessing, and
maintain the memory and I/O bandwidth to support it, new system designs are
needed. For systems with dual processors, it is important to consider the additional
power burdens and signal integrity issues of supporting multiple loads on a high speed
bus. The Pentium® II Processor card supports both uni-processor and dual processor
implementations.
The Pentium® II Processor utilizes Single Edge Contact (S.E.C.) (Figure 1) cartridge
packaging technology. The S.E.C. cartridge allows the L2 cache to remain tightly
coupled to the processor, while maintaining flexibility when implementing high performance processors into OEM systems. The second level cache is performance
optimized and tested at the cartridge level. The S.E.C. cartridge utilizes surface
mounted core components and a printed circuit board with an edge finger
connection. The S.E.C. cartridge package introduced on the Pentium® II Processor
will also be used in future Slot 1 processors.
The S.E.C. cartridge has the following features: a thermal plate, a cover and a PCB
with an edge finger connection. The thermal plate allows standardized heatsink
attachment or customized thermal solutions. The thermal plate enables a reusable
heatsink to minimize fit issues for serviceability, upgradeability and replacement. The
full enclosure also protects the surface mount components. The edge finger connection maintains socketabilty for system configuration. The edge finger connector is
denoted as ‘Slot 1 connector’ in this and other documentation.
The entire enclosed product is called the Pentium® II Processor. The packaging
technology and each of the physical elements of the product are referred to using
accurate technical descriptions. This allows clear reference to the products as just a
Page 1-2
EP-68LXR
Introduction
processor. This is the model used in past packaging technologies like PGA, TCP,
PQFP, DIP, etc.
S.E.C. Cartridge Terminology
•
Pentium® II Processor
The new enclosed card packaging technology is called a “Single
Edge Contact cartridge.” This is similar to previous names for
packaging technology such as PGA or TCP.
•
Processor card
•
Processor core
•
Cover
The green PCB (with or without components on it)
The silicon on the PLGA package on the PCB
The plastic cover on the opposite side from the thermal plate.
•
Slot 1
The slot that the S.E.C. cartridge plugs into, just as the Pentium®
Pro processor uses Socket 8.
•
Retention mechanism
Formerly ‘retention module’ the dual posts, etc. that holds the
cartridge in place.
•
Thermal plate
•
Heat sink supports
The heatsink attachment plate.
The support pieces that are mounted on the mainboard to provide
added support for heatsinks.
The L2 cache (TagRAM, PBSRAM)
components keep standard industry
names.
Thermal Plate
Cover
The Pentium® II Processor is the first
product to utilize the S.E.C. cartridge
technology and Slot 1 connector. Unless
otherwise noted, any references to
“Pentium® II Processor,” “Pentium® II
Processor
Processor/Slot 1 processor” or ProcesPrinted Circuit Board
sor” will apply to both the Pentium® II
Figure 1: Pentium® II Processor CPU
Processor desktop processors.
with S.E.C. Cartridge
Page 1-3
Introduction
EP-68LXR
Accelerated Graphics Port
(AGP or A.G.P.)
Typically, 3D graphics rendering requires a tremendous amount of memory, and
demands ever increasing throughput speed as well. As 3D products for the personal
computer become more and more popular, these demands will only increase. This
will cause a rise in costs for both end users and manufacturers. Lowering these
costs as well as improving performance is the primary motivation behind AGP. By
providing a massive increase in the bandwidth available between the video card and
the processor, it will assist in relieving some of these pressures for quite sometime.
Hardware Monitoring
Hardware monitoring allows you to monitor various aspects of your systems operations and status. These include features such as CPU temperature, voltage and fan
RPM’s.
Desktop Management Interface
(DMI)
DMI, or Desktop Management Interface, is a BIOS level method for monitoring
specific BIOS related hardware features. It allows the BIOS to collect and store
information specific to the system, so that vendors and system integrators will have
greater access to information regarding system configuration and design. This allows
for better troubleshooting, migration planning, and upgradeability decision making.
Page 1-4
EP-68LXR
Introduction
Power-On/Off (Remote)
The EP-68LXR has a single 20-pin connector for ATX power supplies. For ATX
power supplies that support the Remote On/Off feature, this should be connected to
the systems front panel for system Power On/Off button. The systems power On/
Off button should be a momentary button that is normally open.
The EP-68LXR has been designed with “Soft Off" functions. You can turn Off the
system from one of two sources: The first is the front panel Power On/Off button,
and the other is the "Soft Off" function (coming from the EP-68LXR’s onboard
circuit controller) that can be controlled by the operating system. Windows 95 will
control this when the user clicks that they are ready to Shutdown the system.
J3
EP-68LXR Board
ATX
POWER SUPPLY
Case (chassis) Power
ON/OFF button (J 3)
Figure 4: Simple ATX Power ON/OFF Controller
Page 1-5
Introduction
EP-68LXR
System Block Diagram
PAC
PCI Bridge
and memory
controller
443LX/443EX
PIIX4/PIIX4E
I/O Bridge
Figure 5: System Block Diagram
Page 1-6
EP-68LXR
Features
Section 2
FEATURES
EP-68LXR Features:
• EP-68LXR is based on the Pentium® II Processor operating at 233 ~ 333 MHz
on Slot 1. The board is configured by an DIP Switch to match your CPU
clock speed.
• Designed with Intel’s 82443 LX (or 82443 EX) AGPset.
• Supports up to 256MB of DRAM (minimum of 8 MB) on board (please see
Section 3-2).
• EP-68LXR will support Error Checking and Correcting (ECC) when using
parity DRAM memory modules. This will detect multiple bit errors and correct
1-bit memory errors.
• Supports (2) 16 bit ISA slots, (3) 32 bit PCI slots, (1) AGP slot and provides
(2) independent high performance PCI IDE interfaces capable of supporting
PIO Mode 3/4 and Ultra DMA 33 devices. The EP-68LXR supports (3) PCI
Bus Master slots and a jumperless PCI INT# control scheme which reduces
configuration confusion when plugging in PCI card(s).
• Supports ATAPI (e.g. CD-ROM) devices on both Primary and Secondary IDE
interfaces.
• Designed with Winbond W83977TF Multi I/O: (1) floppy port, (1) parallel port
(EPP, ECP), and (2) serial ports (16550 Fast UART).
Note: Japanese “Floppy 3 mode” is also supported
• Features Award Plug & Play BIOS. With Flash Memory you can always
upgrade to the current BIOS as they are released. (http://www.epox.com/
please visit our Technical Support section for the latest updates)
• EP-68LXR utilizes a Lithium battery which provides environmental protection
and longer battery life.
Page 2-1
Features
EP-68LXR
• Supports the Universal Serial Bus (USB) Header. The onboard PIIX4/PIIX4E
chip provides the means for connecting PC peripherals such as; keyboards,
joysticks, telephones, and modems.
• Built-in ATX 20-pin and AT 12-Pin power supply connector.
• Software power-down when using Windows® 95.
• Supports ring-in feature (remote power-on through external modem,
allows system to be turned on remotely.
• Resume by Alarm - Allows your system to turn on at a preselected time.
• Power Loss Recovery - In the event of a power outtage your system will
automatically turn itself back on without user intervention.
• Supports CPU Hardware sleep and SMM (System Management Mode).
• Supports Desktop Management Interface (DMI) facilitating the management
of desktop computers, hardware and software components and peripherals,
whether they are stand-alone systems or linked into networks. (option)
• Built-in WOL (Wake-up On Lan) Connector.
• Built-in SB-Link Connector.
Page 2-2
Page 3-1
J5
PS/2
Secondary IDE
SB-Link
J8
J7
Figure 1
POWER_ON
IDE1 IDE2
Flash Memory
for BIOS
J6
ISA Slot #2
5
Chassis FAN
ISA Slot #1
1
HD/LED
TB/LED
Bank 1
WOL
PCI Slot #1
IR CONN.
Bank 0
PCI Slot #3
Battery
J3
SPEAKER RESET
DIMM 1
DIMM 2
PCI Slot #2
1
KEYLOCK
1
AGP SLOT
JP4
CPU FAN
J4
EP-6 8 LXR
Intel
443LX/443EX
PCIset
J2
AT Power Input
USB1
EP-68LXR Detailed Layout
Section 3
INSTALLATION
Installation
CPU Cartridge SLOT 1
ON
EP-68LXR
Power Fanr
Installation
EP-68LXR
Easy Installation Procedure
Easy Installation Procedure
The following must be completed before powering on your new system:
3-1.
3-2.
3-3.
3-4.
Configure DIP Switch and Jumper to match your hardware
Install memory chips
Install Pentium II Processor
Device Connectors
Section 3-1
Configure DIP Switch
EPoX designs all motherboards with a DIP Switch to make your install fast and easy.
The following will describe all of the DIP Switch that you are required to set before
moving on to step 3-2.
Note: The DIP Switch as depicted as shown (Figure 1) in their correct
physical orientation.
SW 1
ON
JP 4
Page 3-2
1
2
3
4
1
ON
SW 1
2 3
4
ON
ON ON ON
ON
ON
ON ON
CPU
233
266
300
333
JP 4 B us C lock
1-2
68M H z
2-3
75M H z
O P E N 66M H z
EP-68LXR
Installation
Section 3-2
System Memory Configuration
Memory Layout
The EP-68LXR supports (2) 168-pin DIMMs (Dual In-line Memory Module). The
DIMMs can be either EDO (Enhanced Data Out) or SDRAM (Synchronized
DRAM).
•
DIMM SDRAM may be 83MHz (12ns), 100MHz (10ns) or
120MHz (8ns) bus speed.
•
If you use both 50ns and 60ns memory you must configure
your BIOS to read 60ns.
•
When using Synchronous DRAM we recommend using the
4 clock variety over the 2 clock.
•
Fast Page Mode DRAM (FPM) is not supported by the LX
(or EX) AGPset. Only EDO and SDRAM are supported.
Figure 2 and Table 1 show several possible memory configurations using both SIMM
and DIMM.
DIM M 1
DIM M 2
B a nk 0
B a nk 1
Page 3-3
Installation
Tot a l M e mor y
EP-68LXR
DI M M 1
(Ba nk 0)
DI M M 2
(Ba nk 1)
= 256MB
Maximum
EDO /SDRAM*
8MB, 16MB, 32MB,
64MB, 128MB X 1
EDO /SDRAM*
8MB, 16MB, 32MB,
64MB, 128MB, 256MB
X1
= 128MB
Maximum
EDO /SDRAM*
8MB, 16MB, 32MB,
64MB, 128MB X 1
N one
* SDRAM only supports 8, 16, 32, 64, 128MB DIMM modules.
Table 1
DIMM Module Installation
Figure 5 displays the notch marks and what they should look like on your DIMM
memory module.
DIMMs have 168-pins and two notches that will match with the onboard DIMM
socket. DIMM modules are installed by placing the chip firmly into the socket at a
90 degree angle and pressing straight down (figure 6) until it fits tightly into the
DIMM socket (figure 7).
LEFT KEY ZONE
(UNBUFFERED)
CENTER KEY ZONE
(3.3 V DRAM)
Figure 5
Page 3-4
EP-68LXR
Installation
Figure 5
DIMM Module clip before installation
Figure 6
DIMM Module clip after installation
To remove the DIMM module simply press down both of the white clips on either
side and the module will be released from the socket.
Page 3-5
Installation
EP-68LXR
Section 3-3
Installing a Pentium II Processor
The EP-68LXR uses the Single Edge Contact (SEC) slot for a Pentium II processor
packaged in an SEC cartridge. The SEC slot is not compatible with other nonPentium II processors.
Please have ready the following list of components so that we may install the processor onto the motherboard.
1.
2.
3.
Heat sink support (top/bottom piece)
Pentium II processor heat sink
Intel Pentium II Processor
OK, now that you have all of your components ready, we can start.
First, please refer to figure 8 below, and follow the direction to lift up the fixed
foldable pentium® II Retention Mechanism. This pre-installed device is
designed for you to install Pentium® II CPU more easier and to avoid any
damage on the board due to overtightening the four screws.
One thing must be kept in your mind that please make sure to lift upright the
foldable parts of the Retention module to fit and install CPU properly.
Figure 8
Now we are going to install the heatsink support base piece (figure 9) onto the
motherboard. There is both a large and small hole (figure 10) so that the base will
only fit in one direction. This piece needs to be pushed into the holes firmly until it is
seated.
Now we are ready to install the SEC Cartridge (Pentium II Processor) into the
Retention Module. The SEC Cartridge is mounted by sliding the SEC Cartridge into
the Retention Module and letting it slide all the way down. Once it reaches the
Page 3-6
EP-68LXR
Installation
bottom make sure you press firmly on SEC cartridge to firmly secure into the Slot 1
Socket.
Now we need to secure the heatsink with the top half of the support (figure 11).
Take the top piece of the support and slide it into the bottom fin (figure 11) on the
heatsink and then push forward until it clips into the bottom base (figure 9) that is
already there (figure 11).
Figure 9
Figure 9 shows the layout of Slot 1 and the holes for mounting the Heatsink base
piece (figure 8).
Motherboard
CPU Car tr idge SLOT 1
Large Hole for Heat Sink Base
Layout
Small Hole for Heat Sink Base
Figure 10
Bottom fin
of heatsink
Bottom fin
of heatsink
Top half of the support
Figure 11
Page 3-7
Installation
EP-68LXR
Section 3-4
Device Connectors
Please install the motherboard into the chassis.
Now that your motherboard is installed you are ready to connect all your connections
(figure 12).
LPT
P S /2 M o u se C o n n
COM 2
USB
COM 1
K B C o n n.
Figure 12
J2:
Chassis Panel Connector
• Keylock, Speaker, Reset
J3:
Turbo LED, HDD LED, IR Conn., Sleep/Power_ON
J4:
CPU Fan Power
• A plug-in for the CPU Fan Power
J5: Power Supply Fan Monitoring
• A plug-in for the Power supply so that BIOS can monitor the RPM’s
J6: Chassis Fan Power
• A plug-in for the chassis Fan Power
J7: WOL Connector
J8: SB-Link Header
PS1: PS2 Mouse Header
USB1:
USB Header
IDE1:
Primary IDE
IDE2:
Secondary IDE
FDD1:
Floppy Controller Connector
Page 3-8
EP-68LXR
Installation
Section3-4
Device Connectors (continued)
J2
1
KeyLock - Keyboard lock switch & Power LED connector
1. Power LED(+) 4. Keylock
2. N/C
5. GND
3. GND
1
Speaker - Connect to the system's speaker for beeping
1. Speaker 3. GND
2. N/C
4. GND
Reset - Closed to restart system.
J3
1
+
+
IR Connector
1. VCC
2. NC
3. IRRX
4. GND
5. IRTX
IDE LED indicator - LED ON when Onboard PCI IDE Hard disks is
activate
Turbo LED indicator - LED ON when higher speed is selected
Power On/Off - This is connected to the power button on the case.
Using the Soft-Off by Pwr-BTTN feature, you can choose either
Instant Off (turns system off immediatly), or 4 sec delay (you need to
hold the button down for 4 seconds before the system turns off). When
the system is in 4 sec delay mode, EPoX has added a special feature to
make the system go into suspend mode when the button is pressed
momentarily.
Page 3-9
EP-68LXR
BIOS
Section 4
AWARD BIOS SETUP
BIOS Instructions
Award’s ROM BIOS provides a built-in Setup program which allows user to modify
the basic system configuration and hardware parameters. The modified data will be
stored in a battery-backed CMOS, so that data will be retained even when the power
is turned off. In general, the information saved in the CMOS RAM will stay unchanged unless there is a configuration change in the system, such as hard drive
replacement or a device is added.
It is possible for the CMOS battery to fail, this will cause data loss in the CMOS
only. If this does happen you will need to reconfigure your BIOS settings.
To enter the Setup Program :
Power on the computer and press the <Del> key immediately, this will bring you into
the BIOS CMOS SETUP UTILITY.
Figure 1: CMOS Setup Utility
Page 4-1
BIOS
EP-68LXR
The menu displays all the major selection items. Select the item you need to
reconfigure. The selection is made by moving the cursor (press any direction key ) to
the item and pressing the ‘Enter’ key. An on-line help message is displayed at the
bottom of the screen as the cursor is moved to various items which provides a better
understanding of each function. When a selection is made, the menu of the selected
item will appear so that the user can modify associated configuration parameters.
4-1 Standard CMOS Setup
Choose “Standard CMOS Setup” in the CMOS SETUP UTILITY Menu (Figure 2).
The Standard CMOS Setup allows the user to configure system settings such as the
current date and time, type of hard disk drive installed, floppy drive type, and display
type. Memory size is auto-detected by the BIOS and displayed for your reference.
When a field is highlighted (use direction keys to move the cursor and the <Enter>
key to select), the entries in the field can be changed by pressing the <PgDn> or the
<PgUp> key.
Figure 2: Standard CMOS Setup
NOTE: If the hard disk Primary Master/Slave and Secondary Master/Slave
are set to Auto, then the hard disk size and model will be auto-detected.
Page 4-2
EP-68LXR
BIOS
NOTE: The “Halt On:” field is used to determine when to halt the system
by the BIOS if an error occurs.
NOTE: Floppy 3 Mode support is a mode used to support a special 3.5”
drive used in Japan. This is a 3.5” disk that stores only 1.2 MB, the default
setting for this is disabled.
4-2 BIOS Features Setup
Selecting the “BIOS FEATURES SETUP” option in the CMOS SETUP UTILITY
menu allows users to change system related parameters in the displayed menu. This
menu shows all of the manufacturer’s default values for the EP-68LXR.
Pressing the [F1] key will display a help message for the selected item.
Figure 3: BIOS Features Setup
Virus Warning: During and after the system boots up, any attempt to write to the
boot sector or partition table of the hard disk drive will halt the system and an error
message will appear. You should then run an anti-virus program to locate the virus.
Keep in mind that this feature protects only the boot sector, not the entire hard drive.
The default value is Disabled.
Page 4-3
BIOS
EP-68LXR
Enabled: Activates automatically when the system boots up causing a
warning message to appear when anything attempts to access the boot
sector.
Disabled: No warning message will appear when anything attempts to
access the boot sector.
Note: Many disk diagnostic programs that access the boot sector table can
trigger the virus warning message. If you plan to run such a program, we
recommend that you first disable the virus warning.
CPU Internal Cache: This controls the status of the processor’s internal cache
area.
The default is Enabled.
Enabled: This activates the processo’s internal cache thereby increasing
performance.
Disabled: This deactivates the processor’s internal cache thereby lowering
performance.
External (L2) Cache: This controls the status of the external (L2) cache area.
The default is Enabled.
Enabled: This activates the motherboard’s L2 cache thereby increasing
performance.
Disabled: This deactivates the motherboard’s L2 cache thereby lowering
performance.
Quick Power On Self Test: This category speeds up the Power On Self Test
(POST).
The default is Enabled.
Enabled: This setting will shorten or skip of the items checked during
POST.
Disabled: Normal POST.
Boot Sequence: This category determines which drive is searched first by the O/S
(Operating System).
The default is A,C,SCSI.
The following is your list of options:
[A, C, SCSI] - [C, A, SCSI] - [C, CD-ROM, A] - [CD-ROM, C, A]
[D, A,CD-ROM],[E, A, CD-ROM] - [F, A, CD-ROM] - [SCSI, A, C]
[SCSI C, A] - [C Only]
Page 4-4
EP-68LXR
BIOS
Swap Floppy Drive: This will swap your physical drive letters A & B if you are
using two floppy disks.
The default is Disabled.
Enabled: Floppy A & B will be swapped under the O/S.
Disabled: Floppy A & B will be not swapped.
Boot Up Floppy Seek: During Power-On-Self-Test (POST), BIOS will determine
if the floppy disk drive installed is 40 or 80 tracks. Only 360K type is 40 tracks while
760K, 1.2MB and 1.44MB are all 80 tracks.
The default is Enabled.
Enabled: The BIOS will search the floppy disk drive to determine if it is 40
or 80 tracks.
Disabled: The BIOS will not search for the type of floppy disk drive by
track number.
NOTE: BIOS can not tell the difference between 720K, 1.2MB and 1.
44MB drive types as they are all 80 tracks.
Boot Up NumLock Status: This controls the state of the NumLock key when the
system boots.
The default is On.
On: The keypad acts as a 10-key pad.
Off: The keypad acts like the cursor keys.
Boot UP System Speed: This controls the initial system speed of the computer.
The default is High.
High: This setting sets the computer into normal operation mode.
Low: This setting sets the computer into a slower operating mode. Some
add-in peripherals or old software may require this setting. Using
CTRL+ALT+(+) will switch you back into high speed mode.
Gate A20 Option: This refers to the way the system addresses memory above
1MB (extended memory).
The default is Fast.
Normal: The A20 signal is controlled by the keyboard controller or chipset
hardware.
Fast: The A20 signal is controlled by Port 92 or chipset specific method.
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Typematic Rate Setting: This determines the keystrokes repeat rate.
The default is Disabled.
Enabled: Allows typematic rate and typematic delay programming.
Disabled: The typematic rate and typematic delay will be controlled by the
keyboard controller in your system.
Typematic Rate (Chars/Sec): This is the number of characters that will be repeated by a keyboard press.
The default is 6.
6: 6 characters per second.
10: 10 characters per second.
15: 15 characters per second.
24: 24 characters per second.
8: 8 characters per second.
12: 12 characters per second.
20: 20 characters per second.
30: 30 characters per second.
Typematic Delay (msec): This setting controls the time between the first and the
second character displayed by typematic auto-repeat.
The default is 250.
250: 250 msec.
500: 500 msec.
750: 750 msec.
1000: 1000 msec.
Security Option: This category allows you to limit access to the System and Setup,
or just to Setup.
The default is Setup.
System: The system will not boot and the access to Setup will be denied if
the correct password is not entered at the prompt.
Setup: The system will boot; but the access to Setup will be denied if the
incorrect password is not entered at the prompt.
PCI/VGA Palette Snoop: This field controls the ability of a primary PCI VGA
controller to share a common palette (When a snoop write cycles) with an ISA video
card.
The default is Disabled.
Enabled: If an ISA card is connected to a PCI VGA card via the VESA
connector, and that ISA card connects to a VGA monitor, then that ISA card
uses the RAMDAC of the PCI card.
Disabled: Disables the VGA card Palette Snoop function.
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OS Select For DRAM > 64MB: Some operating systems require special handling.
Use this option only if your system has greater than 64MB of memory.
The default is Non-OS2.
OS2: Select this if you are running the OS/2 operating system with greater
than 64MB of RAM.
Non-OS2: Select this for all other operating systems and configurations.
Video BIOS Shadow: This option allows video BIOS to be copied into RAM.
Video Shadowing will increase the video performance of your system.
The default is Enabled.
Enabled: Video shadow is enabled.
Disabled: Video shadow is disabled.
C8000 - CBFFF Shadow:
CC000 - CFFFF Shadow:
D0000 - D3FFF Shadow:
D4000 - D7FFF Shadow:
D8000 - DBFFF Shadow:
DC000 - DFFFF Shadow:
These categories determine whether ROMs from option cards will be copied into
RAM. This will be in 16K byte or 32K byte units, and the size will depend on chipset
of the option card.
Enabled: Optional shadow is enabled.
Disabled: Optional shadow is disabled.
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4-3 Chipset Features Setup
Choose the “CHIPSET FEATURES SETUP” in the CMOS SETUP UTILITY
menu to display following menu.
Figure 4: Chipset Features Setup
Auto Configuration: This selects predetermined optimal values of the chipset
parameters.
The default is Enabled.
Enabled: This enables auto-configuration and provides the option to select
predefined timing modes.
Disabled: This allows the user to specify DRAM timing parameters.
Note: If you exceed the performance characteristics of memory in your
system it will result in lockups, crashes and other problematic system
operations.
EDO DRAM Speed Selection: This value must correspond to the speed of the
DRAM installed in your system.
The default is 60ns.
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50ns: (Faster) Burst Wait State, for 50ns EDO DRAM.
60ns: (Slower) Burst Wait State, for 60ns Fast Page Mode/EDO DRAM.
MA Additional Wait State: This allows the option to insert an additional wait state
before the beginning of a memory read. Use of this option may be required to
achieve compatibility with some system configurations.
The default is Slow.
Fast: Inserts no wait state.
Slow: Inserts one wait state for the memory cycle.
EDO RAS# to CAS# Delay: Allows you to insert a timing delay between the CAS
and RAS strobe signals, used when DRAM is written to, read from, or refreshed.
The default is 3.
2: Faster performance.
3: Better reliability.
EDO RAS# Precharge Time: The precharge time is the number of cycles it takes
for the RAS to accumulate its charge before EDO DRAM refresh. If insufficient
time is allowed, refresh may be incomplete and the EDO DRAM may fail to retain
data.
The default is 4.
3: Time equals 3 host clocks.
4: Time equals 4 host clocks.
EDO DRAM Read Burst (B/E/F): This setting will allow you to set the timing for
burst mode reads from EDO DRAM. The lower the timing number the faster the
system addresses the memory.
The default is x333.
x222: Use of this option may cause conflicts with some system
configurations.
x333: This is used for standard system configurations.
EDO DRAM Write Burst (B/E/F): This setting will allow you to set the timing for
burst mode writes to EDO DRAM. The lower the timing number the faster the
system addresses the memory.
The default is x333.
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x222: Use of this option may cause conflicts with some system
configurations.
x333: This is used for standard system configurations.
DRAM Data Integrity Mode: Use this option to configure the type of DRAM in
your system.
The default is Non-ECC.
Non-ECC: If your memory is Non-ECC memory, choose this option.
ECC: If your memory is ECC memory, choose this option.
CPU-To-PCI IDE Posting: This option allows the computer to post write cycles
from the CPU to the PCI IDE interface. IDE accesses are posted in the CPU to
PCI buffers, for cycle optimization.
The default is Enabled.
Enabled: Enabled
Disabled: Disabled
System BIOS Cacheable: This allows you to copy your BIOS code from slow
ROM to fast RAM.
The default is Disabled.
Enabled: The option will improve system performance. However, if any
program writes to this memory area, a system error may result.
Disabled: System BIOS non-cacheable.
Video BIOS Cacheable: This option copies the video ROM BIOS to fast RAM
(C0000h to C7FFFh).
The default is Enabled.
Enabled: Enables the Video BIOS Cacheable to speed up the VGA
Performance.
Disabled: Will not use the Video BIOS Cacheable function.
Video RAM Cacheable: This option allows the CPU to cache read/writes of the
video RAM.
The default is Enabled.
Enabled: This option allows for faster video access.
Disabled: Reduced video performance.
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8 Bit I/O Recovery Time: This function allows you to set the wait state that is
added to an 8 bit ISA instruction originated by the PCI bus.
The default is 3.
NA:
1: 1
3: 3
5: 5
7: 7
No wait state
wait states
wait states
wait states
wait states
8:
2:
4:
6:
8
2
4
6
wait
wait
wait
wait
states
states
states
states
16 Bit I/O Recovery Time: This function allows you to set the wait state that is
added to an 16 bit ISA instruction originated by the PCI bus.
The default is 2.
NA: No wait state
3: 3 wait states
1: 1 wait states
4: 4 wait states
2: 2 wait states
Memory Hole at 15M-16M: You can reserve this memory area for the use of
ISA adaptor ROMs.
The default is Disabled.
Enabled: This field enables the main memory (15~16MB) to remap to ISA
BUS.
Disabled: Normal Setting.
NOTE: If this feature is enabled you will not be able to cache this
memory segment.
Passive Release: This option allows access from the CPU to PCI bus to be active
during passive release. Otherwise, the arbiter only accepts another PCI master
access to local DRAM.
The default is Enabled.
Enabled: Enabled
Disabled: Disabled
Delayed Transaction: This option allows the chipset to use its embedded 32-bit
posted write buffer to support delay transactions cycles.
The default is Disabled.
Enabled: Select enabled to support PCI 2.1 specification.
Disabled: Disabled.
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AGP Aperture Size: The amount of system memory that the AGP card is allowed
to share.
The default is 4.
4: 4MB of systems memory accessable by the AGP card.
8: 8MB of systems memory accessable by the AGP card.
16: 16MB of systems memory accessable by the AGP card.
32: 32MB of systems memory accessable by the AGP card.
64: 64MB of systems memory accessable by the AGP card.
128: 128MB of systems memory accessable by the AGP card.
256: 256MB of systems memory accessable by the AGP card.
SDRAM RAS# to CAS# Delay: Allows you to insert a timing delay between the
CAS and RAS strobe signals, used when SDRAM is written to, read from, or
refreshed.
The default is Fast.
Fast: Provides faster memory performance.
Slow: Provides better memory compatibility.
SDRAM Precharge Time: The precharge time is the number of cycles it takes for
the RAS to accumulate its charge before SDRAM refresh. If insufficient time is
allowed, refresh may be incomplete and the SDRAM may fail to retain data.
The default is Fast.
Fast: Provides faster memory performance.
Slow: Provides better memory compatibility.
SDRAM CAS Latency Time: This setting defines the CALT timing parameter of
the SDRAM in terms of clocks.
The default is 3.
2: Provides faster memory performance.
3: Provides better memory compatibility.
CPU Warning Temperature: This is the temperature that the computer will
respond to an overheating CPU.
The default is disabled.
Enabled: Temperature is monitored on the CPU
Disabled: This feature is turned off.
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Current CPU Temperature: This is the current temperature of the CPU.
Current Power FAN Speed: The current power fan speed in RPMs.
Current CPU FAN Speed: The current CPU fan speed in RPMs.
Current Chassis FAN Speed: The current chassis fan speed in RPMs.
CPU(V): The voltage level of the CPU.
Note: The hardware information above is not available for a mainboard without NS
LM75/LM78 ICs.
4-4 Power Management Setup
Choose the “POWER MANAGEMENT SETUP” in the CMOS SETUP UTILITY
to display the following screen. This menu allows the user to modify the power
management parameters and IRQ signals. In general, these parameters should not be
changed unless it’s absolutely necessary.
Figure 5: Power Management Setup
You can only change the content of Doze Mode, Standby Mode, and Suspend Mode
when the Power Management is set to ‘User Define’.
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EP-68LXR
Power Management: Use this to select your Power Management selection.
The default is User define.
Disabled: The system operates in NORMAL conditions (Non-GREEN), and
the Power Management function is disabled.
Max. saving: Maximum power savings. Inactivity period is 1 minute in each
mode.
Min. saving: Minimum power savings. Inactivity period is 1 hour in each
mode.
User define: Allows user to define PM Timers parameters to control power
saving mode.
PM controlled APM: This option shows weather or not you want the Power
Management to be controlled the Advanced Power Management (APM).
The default is Yes.
Yes: APM controls your PM
No: APM does not control your PM
Video Off Method: This option allows you to select how the video will be disabled
by the power management.
The default is V/H Sync + Blank
V/H Sync + Blank: System turns off vertical and horizontal synchronization
ports and writes blanks to the video buffer.
DPMS: Select this option if your monitor supports the Display Power
Management Signaling (DPMS) standard of the Video Electronics Standards Association (VESA). Use the software supplied for your video subsystem to select video power management values.
Blank Screen: System only writes blanks to the video buffer.
Video Off After: Tells you what time frame that the video will be disabled under
current power management settings.
The default is Standby.
Standby: Video powers off after time shown in standby mode setting.
Doze: Video powers off after time shown in doze mode setting.
Suspend: Video powers off after time shown in suspend mode setting.
N/A: Video power off not controlled by power management.
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MODEM Use IRQ: Name the interrupt request (IRQ) line assigned to the modem
(if any) on your system. Activity of the selected IRQ always awakens the system.
Default is IRQ 3.
N/A: No IRQ is used.
3:
4: IRQ 4
5:
7: IRQ 7
9:
10: IRQ 10
11: IRQ
IRQ 3
IRQ 5
IRQ 9
11
The EP-68LXR supports HDD Power Down, Doze and Standby power saving
functions when using the Intel Pentium II Processor.
The default is Disabled
Doze Mode: The “Doze” mode timer starts to count when no “PM events” have
occurred.
Standby Mode: When the standby mode timer times-out, it will enter the standby
mode and retain CPU at a slow working speed. The screen will be blanked out.
Suspend Mode: This function works only when the Pentium II Processor is
installed. The timer starts to count when “System Standby” mode timer is timed out
and no “PM Events” are occurring. Valid range is from 1 minute up to 1 hour.
HDD Power Down: HDD Standby timer can be set from 1 to 15 minute(s).
VGA Active Monitor: Use this option if your monitor has advanced power saving
features.
The default is Enabled
Enabled: Your monitor’s power features will be included in power
management.
Disabled: Your monitor’s power features will not be included in power
management.
Soft-Off by PWR-BTTN: Use this to select your soft-off function.
The default is Instant Off.
Instant Off: Turns off instantly.
4 Second Delay: Turns off after a 4 second delay. If momentary press of
button, the system will go into Suspend Mode. Press again to take system
out of Suspend Mode.
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Resume by Ring: This option is used to set the remote ring in feature. This option
is only available when Power Loss Recovery is Enabled.
The default is Enabled.
Enabled: The system can use remote ring-in to wake the system up.
Disabled: The system cannot use remote ring in to wake system up.
Power Loss Recovery: If the power to the system is cut off the system will turn
itself back on with no user intervention.
The default is Enabled.
Enabled: The system will power back on after a power interuption.
Disabled: The system will stay off after a power interuption.
Resume by Alarm: This option allows you to have the system turn on at a preset
time each day or on a certain day. This option is only available when Power Loss
Recovery is Enabled.
The default is Enabled.
Enabled: The system will turn on at the preset time.
Disabled: The system will not turn on until you turn it on.
Date (of month) Alarm: This is how you set the date that the system will turn on.
The default is 0.
0: Setting this to 0 will turn the system on everyday at the preset time.
1-31: Represents the day of the month that you need the system to turn on.
Time (hh:mm:ss) Alarm: This sets the time that you need the system to turn on.
The deault is 08:00:00.
**Reload Global Timer Events **
These options allow the user to reset the global power features timer if any of the
enabled events occur.
IRQ [3-7, 9-15], NMI: The default is Enable.
Primary IDE 0: The default is Disable.
Primary IDE 1: The default is Disable.
Secondary IDE 0: The default is Disable.
Secondary IDE 1: The default is Disable.
Floppy Disk: The default is Disable.
Serial Port: The default is Enable.
Parallel Port: The default is Disable.
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BIOS
4-5 PNP/PCI Configuration
The PNP/PCI configuration program is for the user to modify the PCI/ISA IRQ
signals when various PCI/ISA cards are inserted in the PCI or ISA slots.
WARNING: Conflicting IRQ’s may cause the system to not find certain devices.
Figure 6: PCI Configuration Setup
PNP OS Installed: Do you have a PNP OS installed on your system. The default is
No.
Yes: Select if you are using a PNP OS
No: Select if your OS does not support PNP.
Resources Controlled By: Who controlled the system PNP/PCI resources.
The default is Manual.
Manual: PNP Card’s resources will be controlled manually. You can set
which IRQ-X and DMA-X are assigned to PCI/ISA PNP or Legacy ISA
Cards.
Auto: If your ISA card and PCI card are all PNP cards, BIOS will assign
the interrupt resource automatically.
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Reset Configuration Data: This setting allows you to clear ESCD data.
The default is Disabled
Disabled: Normal Setting.
Enabled: If you have plugged in some Legacy cards to the system and they
were recorded into ESCD (Extended System Configuration Data), you can
set this field to Enabled in order to clear ESCD.
PCI IDE IRQ Map To: This item allows the user to configure the system for the
type of IDE hard disk controller in use. By default, the BIOS assumes that the hard
drive controller is an ISA device rather than a PCI controller. If you are using a PCI
controller, then you will need to change this to specify which PCI slot has the controller and which PCI interrupt (A, B, C, or D) is associated with the connected IDE
devices.
The default value is PCI-AUTO. This will allow the system to automatically configure the IDE devices.
P C I#3
P C I#2
IN T C
IN T D
IN TA
IN T B
IN T D
IN TA
IN T B
IN T C
P C I#1
IN TA
IN TA
IN T B IN T B
IN T C IN T C
IN T D
PCI
IN T D
F ig u re 7: T h e C o m b in a tio n o f P C I IN T # lin e s
Used MEM base addr: The Used MEM base addr (CB00, CC00, D000, D400,
D800, DC00) and Used MEM Length (8K, 16K, 32K, 64K) are used to support
some specific ISA Legacy cards with requested memory space below 1M address.
Now with these two functions, users can define where the used memory address is
located and its length of the legacy area that is used by the legacy device to avoid the
memory space conflict. For example, if you select “D000” for Used MEM base
addr” and “16K” for “Used MEM Length”, that means the address region D000HD3FFFH is occupied by ISA legacy cards, and thus BIOS will not assign this region
for PnP/ISA and PCI cards.
The default is N/A.
Page 4-18
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BIOS
4-6 Load Setup Defaults
The “LOAD SETUP DEFAULTS” function loads the system default data directly
from ROM and initializes the associated hardware properly. This function will be
necessary only when the system CMOS data is corrupted.
4-7 Integrated Peripherals
Figure 8: Integrated Peripherals
Note: If you do not use the Onboard IDE connector, then you will need to
set Onboard Primary PCI IDE: Disabled and Onboard Secondary PCI
IDE: Disabled
Note: The Onboard PCI IDE cable should be equal to or less than 18
inches (45 cm.).
Page 4-19
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IDE HDD Block Mode: IDE Block Mode allows the controller to access blocks
of sectors rather than a single sector at a time.
The default is Enabled.
Enabled: Enabled IDE HDD Block Mode. Provides higher HDD
transfer rates.
Disabled: Disable IDE HDD Block Mode.
Onboard Primary PCI IDE: The default value is Enabled.
Enabled: Enables Onboard IDE primary port.
Disabled: Disables Onboard IDE primary port.
Onboard Secondary PCI IDE:
The default is Enabled.
Enabled: Enables Onboard IDE secondary port.
Disabled: Disables Onboard IDE secondary port.
IDE Primary Master PIO
The default is Auto.
Auto: BIOS will automatically detect the Onboard Primary Master PCI IDE
HDD Accessing mode.
Mode 0~4: Manually set the IDE Programmed interrupt mode.
IDE Primary Slave PIO
The default is Auto.
Auto: BIOS will automatically detect the Onboard Primary Slave PCI IDE
HDD Accessing mode.
Mode 0~4: Manually set the IDE Programmed interrupt mode.
IDE Secondary Master PIO:
The default is Auto.
Auto: BIOS will automatically detect the Onboard Secondary Master PCI
IDE HDD Accessing mode.
Mode 0~4: Manually set the IDE Programmed interrupt mode.
IDE Secondary Slave PIO:
The default is Auto.
Auto: BIOS will automatically detect the Onboard Secondary Slave PCI IDE
HDD Accessing mode.
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Mode 0~4: Manually set the IDE Programmed interrupt mode.
IDE Primary Master UDMA: This allows you to select the mode of operation for
the hard drive.
The default is Auto.
Auto: The computer will select the optimal setting.
Disabled: The hard drive will run in normal mode.
IDE Primary Slave UDMA: This allows you to select the mode of operation for the
hard drive.
The default is Auto.
Auto: The computer will select the optimal setting.
Disabled: The hard drive will run in normal mode.
IDE Secondary Master UDMA: This allows you to select the mode of operation
for the hard drive.
The default is Auto.
Auto: The computer will select the optimal setting.
Disabled: The hard drive will run in normal mode.
IDE Secondary Slave UDMA: This allows you to select the mode of operation for
the hard drive.
The default is Auto.
Auto: The computer will select the optimal setting.
Disabled: The hard drive will run in normal mode.
USB Keyboard Support: This controls the activation status of an optional USB
keyboard that may be attached.
The default is disabled.
Enabled: Enable USB keyboard support.
Disabled: Disable USB keyboard support.
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OnBoard Primary PCI IDE: This option turns on and off the onboard primary IDE.
The default is enabled.
Enabled: This activates the primary PCI IDE.
Disabled: This disables the primary PCI IDE and frees up the resource.
OnBoard Secondary PCI IDE: This option turns on/off the onboard secondary IDE.
The default is enabled.
Enabled: This activates the secondary PCI IDE.
Disabled: This disables the secondary PCI IDE and frees up its resources.
KBC input clock: This sets the keyboard clock value.
The default is 12 MHz.
Options: 6, 8, 12, 16 are the available choices.
Onboard FDC Controller: This controls the state of the onboard floppy controller.
The default value is Enabled.
Enabled: Enable the Onboard Winbond Chips’s floppy drive interface
controller.
Disabled: Disable the Onboard Winbond Chip’s floppy drive interface
controller.
Onboard Serial Port 1: This field allows the user to configure the 1st serial port.
The default is Auto.
AUTO: Enable Onboard Serial port 1 and address is Auto adjusted
COM1: Enable Onboard Serial port 1 and address is 3F8H/IRQ4.
COM2: Enable Onboard Serial port 1 and address is 2F8H/IRQ3.
COM3: Enable Onboard Serial port 1 and address is 3E8H/IRQ4.
COM4: Enable Onboard Serial port 1 and address is 2E8H/IRQ3.
Disabled: Disable Onboard Winbond Chip’s CHIP’s Serial port 1.
Onboard Serial Port 2: This field allows the user to configure the 2nd serial port.
The default is Auto.
AUTO: Enable Onboard Serial port 2 and address is Auto adjusted
COM1: Enable Onboard Serial port 2 and address is 3F8H/IRQ4.
COM2: Enable Onboard Serial port 2 and address is 2F8H/IRQ3.
COM3: Enable Onboard Serial port 2 and address is 3E8H/IRQ4.
COM4: Enable Onboard Serial port 2 and address is 2E8H/IRQ3.
Disabled: Disable Onboard Winbond Chip’s CHIP’s Serial port 2.
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Onboard IR Controller: IrDA Controller.
The default is Enabled.
IR Address Select: The port location of the IR controller.
The default is 2E8H.
IR Mode: The mode of the IR controller.
The default is IrDA
IR Transaction Delay:
The default is Enabled.
IR IRQ Select:
The default is IRQ 10
IR Mode use DMA:
The default is Disable.
Onboard Parallel port: This field allows the user to configure the LPT port.
The default is 378H / IRQ7.
378H: Enable Onboard LPT port and address is 378H and IRQ7.
278H: Enable Onboard LPT port and address is 278H and IRQ5.
3BCH: Enable Onboard LPT port and address is 3BCH and IRQ7.
Disabled: Disable Onboard Winbond Chip’s LPT port.
Parallel Port Mode: This field allows the user to select the parallel port mode.
The default is ECP+EPP.
Normal: Standard mode. IBM PC/AT Compatible bidirectional parallel port.
EPP: Enhanced Parallel Port mode.
ECP: Extended Capabilities Port mode.
EPP+ECP: ECP Mode & EPP Mode.
ECP Mode USE DMA: This field allows the user to select DMA1 or DMA3 for
the ECP mode.
The default is DMA3.
DMA1: This field selects the routing of DMA1 for the ECP mode.
DMA3: This field selects the routing of DMA3 for the ECP mode.
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4-8 Change Supervisor or
User Password
To change the password, choose the “SUPERVISOR PASSWORD or USER
PASSWORD” option from the CMOS SETUP UTILITY menu and press [Enter].
NOTE: Either “Setup” or “System” must be selected in the “Security
Option” of the BIOS FEATURES SETUP menu.
1. If CMOS is corrupted or the option was not used, a default password stored
in the ROM will be used. The screen will display the following message:
Enter Password:
Press the [Enter] key to continue after the proper password is given.
2. If the CMOS is corrupted or the option was used earlier and the user wishes
to change the default password, the SETUP UTILITY will display a message and ask for a confirmation.
Confirm Password:
3. After pressing the [Enter] key (ROM password if the option was not used)
or current password (user-defined password), the user can change the
password and store new one in CMOS RAM. A maximum of 8 characters
can be entered.
4-9 IDE HDD Auto Detection
The “IDE HDD auto detection” utility is a very useful tool, especially when you do
not know which kind of hard disk type you are using. You can use this utility to detect
the correct disk type installed in the system automatically. But now you can set
HARD DISK TYPE to Auto in the STANDARD CMOS SETUP. You don’t need
the “IDE HDD AUTO DETECTION” utility. The BIOS will Auto-detect the hard
disk size and model on display during POST.
Page 4-24
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BIOS
Figure 8: IDE HDD Auto Detection
NOTE: HDD Modes
The Award BIOS supports 3 HDD modes : NORMAL, LBA & LARGE NORMAL
mode
Generic access mode in which neither the BIOS nor the IDE controller will make
any transformations during accessing.
The maximum number of cylinders, head & sectors for NORMAL mode are.
1024, 16 & 63
no. Cylinder
x no. Head
x no. Sector
x no. per sector
(1024)
( 16)
( 63)
( 512)
528 Megabytes
If user set his HDD to NORMAL mode, the maximum accessible HDD size will be
528 Megabytes even though its physical size may be greater than that!
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LBA (Logical Block Addressing) mode: A new HDD accessing method to
overcome the 528 Megabyte bottleneck. The number of cylinders, heads & sectors
shown in setup may not be the number physically contained in the HDD. During
HDD accessing, the IDE controller will transform the logical address described by
sector, head & cylinder into its own physical address inside the HDD. The maximum
HDD size supported by LBA mode is 8.4 GigaBytes which is obtained by the
following formula:
no. Cylinder
x no. Head
x no. Sector
x bytes per sector
(1024)
( 255)
( 63)
( 512)
8.4 GigaBytes
LARGE mode: Extended HDD access mode supported by Award Software.
Some IDE HDDs contain more than 1024 cylinder without LBA support (in some
cases, user do not want LBA). The Award BIOS provides another alternative to
support these kinds of LARGE mode.
CYLS
HEADS
SECTOR
MODE
1120
560
16
32
59
59
NORMAL
LARGE
BIOS tricks DOS (or other OS) that the number of cylinders is less than 1024 by
dividing it by 2. At the same time, the number of heads is multiplied by 2. A reverse
transformation process will be made inside
INT 12h in order to access the right HDD address!
Maximum HDD size:
no. Cylinder
x no. Head
x no. Sector
x bytes per sector
(1024)
( 32)
( 63)
( 512)
1 GigaByte
Note: To support LBA or LARGE mode of HDDs, there must be some
software involved. All the software is located in the Award HDD Service
Routine (INT 13h). It may fail to access a HDD with LBA (LARGE) mode
selected if you are running under a Operating System which replaces the
whole INT 13h.
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UNIX operating systems do not support either LBA or LARGE and must utilize the
Standard mode. UNIX can support drives larger than 528MB.
4-10 HDD Low Level Format
Interleave: Select the interleave number of the hard disk drive you wish to perform
a low level format on. You may select from 1 to 8. Check the documentation that
came with the drive for the correct interleave number, or select 0 for automatic
detection.
Auto scan bad track: This allows the utility to scan first then format by each track.
Start: Press<Y>to start low level format.
3-11 Save & Exit Setup
The “SAVE & EXIT SETUP” option will bring you back to the boot up procedure
with all the changes you just recorded in the CMOS RAM.
3-12 Exit Without Saving
The “EXIT WITHOUT SAVING” option will bring you back to normal boot up
procedure without saving any data into CMOS RAM.
All old data in the CMOS will not be destroyed.
Page 4-27
EP-68LXR
DMI Access
Section 5
DMI ACCESS
DMI Access
DMI, or desktop Management Interface, is a feature that is able to auto-detect and
record information about your computer system. This information is used by computing professionals to accurately determine your system configuration and to diagnose
and resolve problems.
The computer’s BIOS will detect and record as much information as it is able to, and
will store that information in a special location in the BIOS.
The DMI configuration utility will allow system integrators to add information that the
BIOS cannot detect, such as model and brand of motherboard and other components.
This information cannot be detected by the bios and must be added by the system
integrator or vendor.
Figure 1: DMI Screen Shoot
Page 5-1
EP-68LXR
Appendix
Appendix A:
A-1 MEMORY MAP
Address Range
[00000-7FFFF]
[80000-9FBFF]
[9FC00-9FFFF]
[A0000-C7FFF]
[C8000-DFFFF]
[E0000-EEFFF]
[EF000-EFFFF]
Size
512K
127K
1K
160K
96K
60K
4K
[F0000-F7FFF]
[F8000-FCFFF]
[FD000-FDFFF]
[FE000-FFFFF]
32K
20K
4K
8K
Description
Conventional memory
Extended Conventional memory
Extended BIOS data area if PS/2 mouse is installed
Available for Hi DOS memory
Available for Hi DOS memory and adapter ROMs
Available for UMB
Video service routine for Monochrome & CGA
adaptor
BIOS CMOS setup utility
BIOS runtime service routine (2)
Plug and Play ESCD data area
BIOS runtime service routine (1)
A-2 I/O MAP
[000-01F]
[020-021]
[022-023]
[040-05F]
[060-06F]
[070-07F]
[080-09F]
[0A0-0BF]
[0C0-0DF]
[0F0-0FF]
[1F0-1F8 ]
[278-27F]
[2B0-2DF]
[2F8-2FF]
[360-36F]
[378-37F]
[3B0-3BF]
[3C0-3CF]
DMA controller.(Master)
INTERRUPT CONTROLLER.(Master)
CHIPSET control registers. I/O ports.
TIMER control registers.
KEYBOARD interface controller.(8042)
RTC ports & CMOS I/O ports.
DMA register.
INTERRUPT controller.(Slave)
DMA controller.(Slave)
MATH COPROCESSOR.
HARD DISK controller.
PARALLEL port 2.
GRAPHICS adapter controller.
SERIAL port 2.
NETWORK ports.
PARALLEL port 1.
MONOCHROME & PARALLEL port adapter.
EGA adapter.
A-1
Appendix
[3D0-3DF]
[3F0-3F7]
[3F8-3FF]
EP-68LXR
CGA adapter.
FLOPPY DISK controller.
SERIAL port 1.
A-3 TIMER & DMA CHANNELS MAP
TIMER MAP:
TIMER Channel 0
TIMER Channel 1
TIMER Channel 2
DMA CHANNELS:
DMA Channel 0
DMA Channel 1
DMA Channel 2
DMA Channel 3
DMA Channel 4
DMA Channel 5
DMA Channel 6
DMA Channel 7
System timer interrupt.
DRAM REFRESH request.
SPEAKER tone generator.
Available.
Onboard ECP (Option).
FLOPPY DISK (SMC CHIP).
Onboard ECP (default).
Cascade for DMA controller 1.
Available.
Available.
Available
A-4 INTERRUPT MAP
NMI :
Parity check error.
IRQ (H/W):
0
System TIMER interrupt from TIMER 0.
1
KEYBOARD output buffer full.
2
Cascade for IRQ 8-15.
3
SERIAL port 2.
4
SERIAL port 1.
5
PARALLEL port 2.
6
FLOPPY DISK (SMC CHIP).
7
PARALLEL port 1.
8
RTC clock.
9
Available.
10
Available.
11
Available.
12
PS/2 Mouse.
13
MATH coprocessor.
A-2
EP-68LXR
14
15
Appendix
Onboard HARD DISK (IDE1) channel.
Onboard HARD DISK (IDE1) channel.
A-5 RTC & CMOS RAM MAP
RTC & CMOS:
00
Seconds.
01
Second alarm.
02
Minutes.
03
Minutes alarm.
04
Hours.
05
Hours alarm.
06
Day of week.
07
Day of month.
08
Month.
09
Year.
0A
Status register A.
0B
Status register B.
0C
Status register C.
0D
Status register D.
0E
Diagnostic status byte.
0F
Shutdown byte.
10
FLOPPY DISK drive type byte.
11
Reserve.
12
HARD DISK type byte.
13
Reserve.
14
Equipment type.
15
Base memory low byte.
16
Base memory high byte.
17
Extension memory low byte.
18
Extension memory high byte.
19-2d
2E-2F
30
Reserved for extension memory low byte.
31
Reserved for extension memory high byte.
32
DATE CENTURY byte.
33
INFORMATION FLAG.
34-3F Reserve.
40-7F Reserved for CHIPSET SETTING DATA.
A-3
Appendix
EP-68LXR
Appendix B:
B-1 POST CODES
ISA POST codes are typically output to I/O port address 80h.
POST (hex)
DESCRIPTION
01-02
Reserved.
C0
Turn off OEM specific cache, shadow.
03
1. Initialize EISA registers (EISA BIOS only).
2. Initialize all the standard devices with default values
Standard devices includes.
- DMA controller (8237).
- Programmable Interrupt Controller (8259).
- Programmable Interval Timer (8254).
- RTC chip.
04
Reserved
05
1. Keyboard Controller Self-Test.
06
2. Enable Keyboard Interface.
07
Reserved.
08
Verifies CMOS's basic R/W functionality.
C1
Auto-detection of onboard DRAM & Cache.
C5
Copy the BIOS from ROM into E0000-FFFFF shadow RAM so that
POST will go faster.
08
Test the first 256K DRAM.
09
OEM specific cache initialization. (if needed)
0A
1. Initialize the first 32 interrupt vectors with corresponding Interrupt
handlers. Initialize INT numbers from 33-120 with Dummy
(Spurious) Interrupt Handler.
2. Issue CPUID instruction to identify CPU type.
3. Early Power Management initialization. (OEM specific)
0B
1. Verify the RTC time is valid or not.
2. Detect bad battery.
3. Read CMOS data into BIOS stack area.
4. PnP initializations including. (PnP BIOS only)
- Assign CSN to PnP ISA card.
- Create resource map from ESCD.
5. Assign IO & Memory for PCI devices. (PCI BIOS only)
A-4
EP-68LXR
Appendix
0C
0D
Initialization of the BIOS Data Area. (40:ON - 40:FF)
1. Program some of the Chipset's value according to Setup.
(Early Setup Value Program)
2. Measure CPU speed for display & decide the system clock speed.
3. Video initialization including Monochrome, CGA, EGA/VGA. If
no display device found, the speaker will beep.
0E
1. Test video RAM. (If Monochrome display device found)
2. Show messages including.
- Award Logo, Copyright string, BIOS Data code & Part No.
- OEM specific sign on messages.
- Energy Star Logo. (Green BIOS ONLY)
- CPU brand, type & speed.
- Test system BIOS checksum. (Non-Compress Version only)
0F
DMA channel 0 test.
10
DMA channel 1 test.
11
DMA page registers test.
12-13
Reserved.
14
Test 8254 Timer 0 Counter 2.
15
Test 8259 interrupt mask bits for channel 1.
16
Test 8259 interrupt mask bits for channel 2.
17
Reserved.
19
Test 8259 functionality.
1A-1D
Reserved.
1E
If EISA NVM checksum is good, execute EISA initialization.
(EISA BIOS only)
1F-29
Reserved.
30
Detect Base Memory & Extended Memory Size.
31
1. Test Base Memory from 256K to 640K.
2. Test Extended Memory from 1M to the top of memory.
32
1. Display the Award Plug & Play BIOS Extension message.
(PnP BIOS only)
2. Program all onboard super I/O chips (if any) including COM ports,
LPT ports, FDD port ... according to setup value.
33-3B
Reserved.
3C
Set flag to allow users to enter CMOS Setup Utility.
3D
1. Initialize Keyboard.
2. Install PS2 mouse.
A-5
Appendix
3E
3F-40
BF
41
42
43
45
44
45
46-4D
4E
4F
50
51
52
53
60
A-6
EP-68LXR
Try to turn on Level 2 cache.
Note: Some chipset may need to turn on the L2 cache in this stage.
But usually, the cache is turn on later in POST 61h.
Reserved.
1. Program the rest of the Chipset's value according to Setup.
(Later Setup Value Program)
2. If auto-configuration is enabled, program the chipset with
pre-defined Values.
Initialize floppy disk drive controller.
Initialize Hard drive controller.
If it is a PnP BIOS, initialize serial & parallel ports.
Reserved.
Initialize math coprocessor.
Reserved.
If there is any error detected (such as video, kb...), show all error
messages on the screen & wait for user to press <F1> key.
1. If password is needed, ask for password.
2. Clear the Energy Star Logo. (Green BIOS only)
Write all CMOS values currently in the BIOS stack area back into the
CMOS.
Reserved.
1. Initialize all ISA ROMs.
2. Later PCI initializations. (PCI BIOS only)
- assign IRQ to PCI devices.
- initialize all PCI ROMs.
3. PnP Initialzations. (PnP BIOS only)
- assign IO, Memory, IRQ & DMA to PnP ISA devices.
- initialize all PnP ISA ROMs.
4. Program shadows RAM according to Setup settings.
5. Program parity according to Setup setting.
6. Power Management Initialization.
- Enable/Disable global PM.
- APM interface initialization.
1. If it is NOT a PnP BIOS, initialize serial & parallel ports.
2. Initialize time value in BIOS data area by translate the RTC time
value into a timer tick value.
Setup Virus Protection. (Boot Sector Protection) functionality
according to Setup setting.
EP-68LXR
61
62
63
FF
Appendix
1. Try to turn on Level 2 cache.
Note: If L2 cache is already turned on in POST 3D, this part will be
skipped.
2. Set the boot up speed according to Setup setting.
3. Last chance for Chipset initialization.
4. Last chance for Power Management initialization. (Green BIOS
only)
5. Show the system configuration table.
1. Setup daylight saving according to Setup value.
2. Program the NUM Lock, typematic rate & typematic speed
according to Setup setting.
1. If there is any changes in the hardware configuration, update the
ESCD information. (PnP BIOS only)
2. Clear memory that have been used.
3. Boot system via INT 19H.
System Booting. This means that the BIOS already pass the control
right to the operating system.
B-2 Unexpected Errors:
POST (hex)
B0
B1
DESCRIPTION
If interrupt occurs in protected mode.
Unclaimed NMI occurs.0
A-7
Appendix
EP-68LXR
Appendix C
NOTE:
The "LOAD SETUP DEFAULTS" function loads the system default data directly from ROM and
initializes the associated hardware properly. This function will be necessary when you accept this
mainboard, or the system CMOS data is corrupted.
LOAD SETUP DEFAULTS
A-8
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