Motherboard
M4N78 PRO
E4387
First Edition V1
January 2009
Copyright © 2009 ASUSTeK Computer Inc. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK Computer Inc. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless
such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the
product is defaced or missing.
ASUS 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 ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY
DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS
MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identification or explanation and to the
owners’ benefit, without intent to infringe.
ii
Contents
Contents....................................................................................................... iii
Notices........................................................................................................... v
Safety information....................................................................................... vi
About this guide.......................................................................................... vi
M4N78 PRO specifications summary...................................................... viii
Chapter 1
Product introduction
1.1
Welcome!....................................................................................... 1-1
1.2
Package contents.......................................................................... 1-1
1.3
Special features............................................................................. 1-1
1.4
Before you proceed...................................................................... 1-3
1.5
Motherboard overview.................................................................. 1-4
1.6
1.7
1.5.1
Placement direction......................................................... 1-4
1.5.2
Screw holes..................................................................... 1-4
1.5.3
Motherboard layout.......................................................... 1-5
1.5.4
Layout contents................................................................ 1-5
Central Processing Unit (CPU).................................................... 1-6
1.6.1
Installing the CPU............................................................ 1-6
1.6.2
Installing the heatsink and fan......................................... 1-7
System memory............................................................................ 1-9
1.7.1
Overview.......................................................................... 1-9
1.7.2
Memory configurations..................................................... 1-9
1.7.3
Installing a DIMM........................................................... 1-13
1.7.4
Removing a DIMM......................................................... 1-13
1.8
Expansion slots........................................................................... 1-14
1.9
Jumpers....................................................................................... 1-15
1.10
Connectors.................................................................................. 1-16
1.11
1.10.1
Rear panel connectors................................................... 1-16
1.10.2
Internal connectors........................................................ 1-18
Software support......................................................................... 1-26
1.11.1
Installing an operating system....................................... 1-26
1.11.2
Support DVD information............................................... 1-26
Chapter 2
BIOS setup
2.1
Managing and updating your BIOS............................................. 2-1
2.2
BIOS setup program..................................................................... 2-6
iii
Contents
2.3
Main menu..................................................................................... 2-9
2.4
Ai Tweaker menu......................................................................... 2-12
2.5
AI Overclocking [Auto]................................................... 2-12
2.4.2
DRAM Frequency Control [Auto]................................... 2-13
2.4.3
HT Link Speed [Auto]..................................................... 2-13
2.4.4
CPU Voltage [Auto]........................................................ 2-16
2.4.5
CPU/NB Voltage [Auto].................................................. 2-16
2.4.6
CPU VDDA Voltage [Auto]............................................. 2-16
2.4.7
DRAM Voltage [Auto]..................................................... 2-17
2.4.8
HT Voltage [Auto]........................................................... 2-17
2.4.9
NB Voltage [Auto]........................................................... 2-17
2.4.10
CPU/LDT Spread Spectrum [Disabled].......................... 2-17
2.4.11
PCIE Spread Spectrum [Disabled]................................. 2-17
2.4.12
SATA Spread Spectrum [Disabled]................................ 2-17
2.4.13
PCI Spread Spectrum [Disabled]................................... 2-17
Advanced menu.......................................................................... 2-18
2.5.1
CPU Configuration......................................................... 2-18
2.5.2
Chipset........................................................................... 2-19
2.5.3
Onboard Devices Configuration..................................... 2-20
2.5.4
PCIPnP.......................................................................... 2-21
2.5.5
USB Configuration......................................................... 2-21
2.6
Power menu................................................................................. 2-22
2.7
Boot menu................................................................................... 2-24
2.8
Tools menu.................................................................................. 2-26
2.9
iv
2.4.1
2.8.1
ASUS EZ Flash 2........................................................... 2-26
2.8.2
Express Gate [Enabled]................................................. 2-26
2.8.3
ASUS O.C. Profile.......................................................... 2-27
2.8.4
AI NET 2........................................................................ 2-27
Exit menu..................................................................................... 2-28
Notices
Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
• This device may not cause harmful interference, and
•
This device must accept any interference received including interference that may cause
undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with manufacturer’s instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
•
Increase the separation between the equipment and receiver.
•
Connect the equipment to an outlet on a circuit different from that to which the receiver is
connected.
•
Consult the dealer or an experienced radio/TV technician for help.
The use of shielded cables for connection of the monitor to the graphics card is required
to assure compliance with FCC regulations. Changes or modifications to this unit not
expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications.
This class B digital apparatus complies with Canadian ICES-003.
DO NOT throw the motherboard in municipal waste. This product has been designed to
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin
indicates that the product (electrical and electronic equipment) should not be placed in
municipal waste. Check local regulations for disposal of electronic products.
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol
of the crossed out wheeled bin indicates that the battery should not be placed in municipal
waste.
Safety information
Electrical safety
•
To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
•
When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
•
Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
•
Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
•
Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
•
If the power supply is broken, do not try to fix it by yourself. Contact a qualified service
technician or your retailer.
Operation safety
•
Before installing the motherboard and adding devices on it, carefully read all the manuals
that came with the package.
•
Before using the product, ensure that all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
•
To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
•
Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may become wet.
•
Place the product on a stable surface.
•
If you encounter technical problems with the product, contact a qualified service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and configuring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
vi
This chapter describes the features of the motherboard and the new technology it
supports.
•
Chapter 2: BIOS setup
This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information
������������������������������������������
to prevent injury to yourself
when trying to complete a task.
CAUTION: Information
������������������������������������������������
to prevent damage to the components
when trying to complete a task.
IMPORTANT: Instructions that you MUST follow to complete a
task.
NOTE: �������������������������������������������������������
Tips and additional information to help you complete a
task.
Where to find more information
Refer to the following sources for additional information and for product and software
updates.
1.
ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2.
Optional documentation
Your product package may include optional documentation, such as warranty flyers,
that may have been added by your dealer. These documents are not part of the
standard package.
Typography
Bold text��������������������������������������
Indicates a menu or an item to select.
Italics
Used to emphasize a word or a phrase.
<Key>
Keys enclosed in the less-than and greater-than sign means
that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1>+<Key2>+<Key3>
If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).
Example: <Ctrl>+<Alt>+<D>
Command������������������������������������������������������
Means that you must type the command exactly as shown,
then supply the required item or value enclosed in brackets.
Example: At the DOS prompt, type the command line:
afudos /iM4N78PRO.ROM
vii
M4N78 PRO specifications summary
CPU
AMD® Phenom™ X4 / Phenom™ X3 / Athlon™ X2 /
Athlon™ / Sempron™ processors (socket AM2+/AM2)
Compatible with AMD® Phenom™ II / Athlon™ X4/
Athlon™ X3 / Athlon™ X2 (AM3 CPU)
AMD® 45nm CPU support
AMD Cool’n’Quiet™ Technology
Chipset
NVIDIA GeForce® 8300
System bus
Up to 5200 MT/s; HyperTransport™ 3.0 interface for
AM3 / AM2+ CPU
2000 / 1600 MT/s for AM2 CPU
Memory
Dual-channel memory architecture
- 4 x 240-pin DIMM sockets support unbufferred
ECC / non-ECC DDR2 1066* / 800 / 667 MHz
memory modules
- Supports up to 16 GB system memory
*Due to AMD CPU limitation, DDR2 1066 is supported by
AM2+ / AM3 CPUs for one DIMM per channel only. Refer
to www.asus.com or this user manual for the Memory
QVL (Qualified Vendors Lists).
** Due to OS limitation, when installing total memory of
4GB capacity or more, Windows 32-bit operation
system may only recognize less than 3GB. Hence, a
total installed memory of less than 3GB is
recommended.
VGA
Integrated NVIDIA® GeForce® 8 series GPU
- Hybrid SLI™ support (for Windows® Vista™ only)
- Supports HDMI™ Technology with max. resolution up
to 1920 x 1200
- Supports DVI with max. resolution up to
1920 x 1200 @ 60Hz
- Supports D-Sub with max. resolution up to 1920 x
1440 @ 75 Hz
HDMI / DVI / RGB support
- Supports Microsoft® DirectX 10, OpenGL 2.0,
Pixel Shader 4.0
- Supports PCIe 2.0 / 1.0 architecture
Expansion Slots
1 x PCIe 2.0 x16 slot
2 x PCIe x1 slots
3 x PCI 2.2 slots
LAN
NVIDIA® Gigabit MAC
Gigabit LAN controller featuring AI NET 2
USB
12 x USB 2.0 /1.1 ports (8 at mid-board; 4 on the rear
panel)
(continued on the next page)
viii
M4N78 PRO specifications summary
Storage
NVIDIA GeForce 8300
- 1 x Ultra DMA 133/100
- 6 x SATA 3.0 Gb/s connectors (Legacy IDE operation is only supported on SATA_1/2/3/4 connectors)
- NVIDIA® MediaShield™ RAID supports RAID 0, 1, 5, 10 and JBOD
High Definition Audio
VIA1708S �������������������������������������
8-channel High Definition Audio CODEC
-���������������������������������������������
Supports Jack-Detection, ��������������������
Multi-Streaming and
Front Panel Jack-Retasking
- Optical ���������������������������
S/PDIF Out port at back I/O
- ASUS Noise Filtering
ASUS Unique Features
ASUS Power Solution:
- ASUS 4+1 Phase Power Design
- ASUS Anti-Surge Protection
Express Gate
ASUS Green Design:
- ASUS EPU*
- ASUS AI Nap
*ASUS EPU is supported by AM3/AM2+ CPU only.
ASUS Quiet Thermal Solution:
- ASUS Fanless Design: Stylish heatsink solution
- ASUS Q-Fan 2
ASUS Crystal Sound:
- ASUS Noise Filtering
ASUS EZ DIY
- ASUS Q-Connector
- ASUS CrashFree BIOS 2
- ASUS O.C. Profile
- ASUS EZ Flash 2
Special Features
Uses 100% All High-quality Conductive Polymer Capacitors!
(5000hrs VRM, over 57 years’ operation lifespan at 65˚C)
ASUS MyLogo 2™
ASUS Exclusive
Overclocking Features
Intelligent overclocking tools:
- AI Overclocking (Intelligent CPU Frequency Tuner)
- ASUS TurboV
- ASUS Turbo Key
Precision Tweaker:
- vCore: Adjustable CPU voltage at 50mv increment
- vDIMM: 8-step DRAM voltage control
- vChipset: 4-step Chipset voltage control
SFS (Stepless Frequency Selection):
- FSB tuning from 200MHz up to 600MHz at 2MHz
increment
- PCIe frequency tuning from 100MHz to 200MHz
at 1MHz increment
Overclocking protection:
- ASUS C.P.R. (CPU Parameter Recall)
(continued on the next page)
ix
M4N78 PRO specifications summary
Rear panel I/O ports
1 x PS/2 keyboard port (purple)
1 x PS/2 mouse port (green)
1 x S/PDIF Out (Optical)
1 x HDMI Out
1 x D-Sub
1 x DVI
1 x LAN (RJ-45)
4 x USB 2.0/1.1
8-channel audio I/O
Internal I/O connectors
4 x USB connectors support additional 8 USB ports
1 x Floppy disk drive connector
1 x COM connector
1 x IDE connector
6 x SATA connectors
1 x CPU Fan connector
1 x Chassis Fan connector
1 x Power Fan connector
1 x Front panel audio connector
1 x S/PDIF Out Header
1 x Chassis Intrusion connector
1 x CD audio in
1 x 24-pin ATX Power connector
1 x 4-pin ATX 12V Power connector
1 x System Panel (Q-Connector)
BIOS features
8 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM2.0,
SM BIOS 2.5, ACPI 2.0, ASUS EZ Flash 2
Support DVD contents
Drivers
Express Gate
ASUS PC Probe II
ASUS Update
Anti-Virus Utility (OEM version)
Form factor
ATX form factor: 12 in x 9.6 in (30.5 cm x 24.4 cm)
*Specifications are subject to change without notice.
Chapter 1
Product introduction
1.1
Welcome!
Thank you for buying an ASUS® M4N78 PRO motherboard!
The motherboard delivers a host of new features and latest technologies, making it another
standout in the long line of ASUS quality motherboards!
Before you start installing the motherboard, and hardware devices on it, check the items in
your package with the list below.
1.2
Package contents
Check your motherboard package for the following items.
Motherboard
Cables
Accessories
Application DVD
Documentations
ASUS M4N78 PRO motherboard
2 x Serial ATA cable
1x Ultra DMA 133/100/66 cable
1 x I/O shield
1 x 2 in 1 Q-connector
(USB, System Panel; Retail Version only)
ASUS motherboard support DVD
User manual
If any of the above items is damaged or missing, contact your retailer.
1.3
Special features
1.3.1
Product highlights
AMD® Phenom™ II / Athlon™ X4 / Athlon™ X3 / Athlon™ X2 processors
(socket AM3)
This motherboard supports AMD® AM3 multi-core processors with unique L3 cache and
delivers better overclocking capabilities with less power consumption. It features dualchannel DDR2 1066 memory support and accelerates data transfer rate up to 5200MT/s
via HyperTransort™ 3.0 based system bus. This motherboard also supports AMD® CPUs
in the new 45nm manufacturing process.
AMD® Phenom™ X4 / Phenom™ X3 / Athlon™ X2 / Athlon™ / Sempron™
processors (socket AM2+ / AM2)
The motherboard supports AMD® Socket AM2+ multi-core processors. It features
dual-channel DDR2 1066 memory support, data transfer rate up to 5200MT/s via
HyperTransport™ 3.0 based system bus and AMD®
Cool ‘n’ Quiet!™ Technology.
Chapter 1: Product introduction
1-1
NVIDIA® GeForce 8300® chipset
NVIDIA® GeForce 8300 offers the latest support of Hybrid SLI Technology, DirectX®
10 graphics features, HD video playback with HDMI/DVI output. It also supports
HyperTransport™ 3.0 interface, PCI Express™ 2.0 bus architecture, Serial ATA 3 Gb/s
devices and is optimized with AMD’s latest AM3/AM2+ and multi-core CPUs to provide
excellent system performance.
Dual channel DDR2 1066 support
This motherboard supports DDR2 1066, which provides faster data transfer rate and more
bandwidth to increase memory data transfer rate and computing efficiency. This enhances
system performance in 3D graphics and other memory demanding applications.
Due to AM3/AM2+ CPU limitation, only one DDR2 1066 is supported per channel. When
four DDR2 1066 DIMMs are installed, all DIMMs run at 800MHz frequency by default for
system stability.
NVIDIA® Hybrid
�������������
SLI™
Hybrid SLI™ technology is a unique hybrid multi-GPU technology built upon NVIDIA.
Hybrid SLI technology today includes two primary features: GeForce® Boost and
HybridPower™. GeForce® Boost turbo-charges performance of NVIDIA discrete graphics
cards when combined with this series motherboard GPUs. HybridPower™ unleashes
graphics performance when needed and enables low-power operation when performance
is not needed. You can switch from the discrete GeForce® GPU(s) to the motherboard
GPU for a quiet, low power PC experience.
GeForce® Boost and HybridPower™ are independent on selected GeForce®
GPUs. Refer to www.nvidia.com/hybridsli for more information.
1.3.2
Innovative ASUS features
ASUS 4+1 Phase Power Design
Unleashes ultimate memory performances with independent power to core components,
while providing fast transient response and stability for the CPU under heavy loading or
overclocking modes. ASUS M4N78 PRO also features an extra 1 phase power dedicated
to integrated memory/HT controller.
ASUS EPU
The ASUS EPU (Energy Processing Unit) provides total system power management
by detecting current PC loadings and intelligently moderating power in real-time. It
automatically provides the most appropriate power usage for the CPU, VGA card, hard
drives, and CPU/chassis fans- helping save power and money!
ASUS EPU is supported by AM3/AM2+ CPU only.
ASUS Anti-Surge
This special design prevents expensive devices and the motherboard from damage
caused by power surges from switching power supply (PSU).
AI Nap
With AI Nap, the system can continue running at minimum power and noise when you are
temporarily away. To wake the system and return to the OS environment, simply click the
mouse or press a key.
1-2
ASUS M4N78 PRO
ASUS EZ O.C.
ASUS TurboV
Feel the adrenaline rush of real-time O.C.—now a reality with the ASUS TurboV. This easy
O.C. tool allows you to overclock without exiting or rebooting the OS, and its user-friendly
interface makes overclock with just a few clicks away. Moreover, the ASUS OC Profiles in
TurboV provides the best O.C. settings in different scenarios.
ASUS Turbo Key
ASUS Turbo Key allows the user to turn the PC power button into an overclocking button.
After the easy setup, Turbo Key can boost performances without interrupting ongoing work
or games—with just one touch!
Other ASUS Features
ASUS Express Gate
Taking only 5 seconds to bootup, Express Gate is the one-stop gateway to instant fun! It’s
a unique motherboard built-in OS. You can utilize the most popular Instant Messengers
(IM) like MSN, Skype, Google talk, QQ, and Yahoo! Messenger to keep in touch with
friends, or quickly check on the weather and e-mails just before leaving your house.
What’s more, the user-friendly picture manager lets you view your pictures without entering
Windows at anytime!
The actual boot time depends on the system configuration.
1.4
Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due to
static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, switch off the ATX power supply and
detach its power cord. Failure to do so may cause severe damage to the motherboard,
peripherals, or components.
Onboard LED
The motherboard comes with a standby
power LED that lights up to indicate that
the system is ON, in sleep mode, or in
soft-off mode. This is a reminder that you
should shut down the system and unplug
the power cable before removing or
plugging in any motherboard component.
The illustration below shows the location of
the onboard LED.
Chapter 1: Product introduction
1-3
1.5
Motherboard overview
1.5.1
Placement direction
1.5.2
Screw holes
When installing the motherboard, ensure that you place it into the chassis in the correct
orientation. The edge with external ports goes to the rear part of the chassis as indicated in
the image below.
Place nine (9) screws into the holes indicated by circles to secure the motherboard to the
chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards
the rear of the chassis.
1-4
ASUS M4N78 PRO
1.5.3
Motherboard layout
1.5.4
Layout contents
Connectors/Jumpers/Slots
Page
1.
Keyboard power (3-pin KBPWR)
1-15
2.
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
1-20
3.
CPU socket AM2+/AM2
1-6
4.
CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1, 3-pin
PWR_FAN)
1-19
5.
DDR2 DIMM slots
1-9
6.
Serial ATA connectors (7-pin SATA1-6)
1-22
7.
IDE connector (40-1 pin PRI_IDE)
1-21
8.
Clear RTC RAM (CLRTC)
1-15
9.
System panel connector (10-1 pin PANEL)
1-23
10.
Onboard LED (SB_PWR)
1-3
11.
Chassis intrusion connector (4-1 pin CHASSIS)
1-19
12.
USB device wake-up (3-pin USBPW1-4, USBPW5-8, USBPW9-12)
1-16
13.
USB connectors (10-1 pin USB56, USB78, USB910, USB1112)
1-24
14.
Floppy disk drive connector (34-1 pin FLOPPY)
1-24
15.
Digital audio connector (4-1 pin SPDIF_OUT)
1-23
16.
Optical drive audio in connector (4-pin CD)
1-18
17.
Front panel audio connector (10-1 pin AAFP)
1-25
18.
Serial port connector (10-1 pin COM1)
1-20
Chapter 1: Product introduction
1-5
1.6
Central Processing Unit (CPU)
The motherboard comes with a CPU socket designed for AMD® AM3 Phenom™ II /
Athlon™ X4 / Athlon™ X3 / Athlon™ X2 processors and AM2+ / AM2 Phenom™ X4 /
Phenom™ X3 / Athlon™ X2 / Athlon™ / Sempron™ processors.
The CPU socket is not compatible with AMD® Opteron™ processors. Do not install an
Opteron™ processor on this motherboard.
1.6.1
Installing the CPU
To install a CPU:
1.
Locate the CPU socket on the motherboard.
2.
Press the lever sideways to unlock
the socket, then lift it up to a 90°100° angle.
Socket lever
Ensure that the socket lever is lifted up to 90°-100° angle, otherwise the CPU will not fit in
completely.
3.
Position the CPU above the socket such that the CPU
corner with the gold triangle matches the socket corner
with a small triangle.
4.
Carefully insert the CPU into the socket until it fits in place.
The CPU fits only in one correct
orientation. DO NOT force the CPU into
the socket to prevent bending the pins
and damaging the CPU!
Small triangle
Gold triangle
1-6
ASUS M4N78 PRO
5.
When the CPU is in place, push down the socket
lever to secure the CPU. The lever clicks on the side
tab to indicate that it is locked.
6.
Install a CPU heatsink and fan following the
instructions that came with the heatsink package.
You can also refer to section 1.6.2 Installing
heatsink and fan for instructions.
7.
Connect the CPU fan cable to the CPU_FAN
connector on the motherboard.
Do not forget to connect the CPU
fan connector! Hardware monitoring
errors can occur if you fail to plug this
connector.
1.6.2
Installing the heatsink and fan
Ensure that you use only AMD-certified heatsink and fan assembly.
To install the CPU heatsink and fan:
1.
Place the heatsink on top of the installed CPU, making sure that the heatsink fits
properly on the retention module base.
• The retention module base is already installed on the motherboard upon purchase.
• You do not have to remove the retention module base when installing the CPU or
installing other motherboard components.
• If you purchased a separate CPU heatsink and fan assembly, ensure that a Thermal
Interface Material is properly applied to the CPU heatsink or CPU before you install the
heatsink and fan assembly.
CPU Fan
CPU Heatsink
Retention bracket
Retention Module Base
Retention bracket lock
Chapter 1: Product introduction
1-7
Your boxed CPU heatsink and fan assembly should come with installation instructions for
the CPU, heatsink, and the retention mechanism. If the instructions in this section do not
match the CPU documentation, follow the latter.
2.
Attach one end of the retention bracket to the retention module base.
1
2
3
3.
4
5
Align the other end of the retention bracket to the retention module base. A clicking
sound denotes that the retention bracket is in place.
Ensure that the fan and heatsink assembly perfectly fits the retention mechanism module
base, otherwise you cannot snap the retention bracket in place.
4.
Push down the retention bracket lock on the retention mechanism to secure the
heatsink and fan to the module base.
5.
When the fan and heatsink assembly is in place, connect the CPU fan cable to the
connector on the motherboard labeled CPU_FAN.
Do not forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.
1-8
ASUS M4N78 PRO
1.7
System memory
1.7.1
Overview
The motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets. A DDR2 module has the same physical dimensions as a DDR DIMM but
has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched
differently to prevent installation on a DDR DIMM socket. The figure illustrates the location of
the DDR2 DIMM sockets:
1.7.2
Channel
Sockets
Channel A
DIMM_A1 and DIMM_A2
Channel B
DIMM_B1 and DIMM_B2
Memory configurations
You may install 512MB, 1GB, 2GB and 4GB unbuffered ECC/non-ECC DDR2 DIMMs into the
DIMM sockets.
• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel configuration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.
• Always install DIMMs with the same CAS latency. For optimum compatibility, we
recommend that you obtain memory modules from the same vendor.
• Due to the memory address limitation on 32-bit Windows OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you install a 64-bit
Windows OS when having 4GB or more memory installed on the motherboard.
• This motherboard does not support DIMMs made up of 256 megabit (Mb) chips or less.
• The default memory operation frequency is dependent on its SPD. Under the default
state, some memory modules for overclocking may operate at a lower frequency than
the vendor-marked value.
• For system stability, use a more efficient memory cooling system to support a full
memory load (4 DIMMs) or overclocking condition.
Chapter 1: Product introduction
1-9
M4N78 PRO Motherboard Qualified Vendors Lists (QVL)
DDR2-1066MHz capability
Vendor
Part No.
A-Data
Apacer
Apacer
G.SKILL
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink PackageSN:
815130037562
G.SKILL
Heat-Sink Package
G.SKILL
Heat-Sink Package
GEIL
GL2L128M88BA25AB
GEIL
Heat-Sink Package
GEIL
Heat-Sink Package
GEIL
Heat-Sink Package
Kingmax KKA8FFIXF-JFS-18A
Kingston Heat-Sink Package
Kingston Heat-Sink Package
Kingston Heat-Sink Package
OCZ
Heat-Sink Package
004820806001601-2
Qimonda HYB18T1G800C2F1.9FSS25253
Transcend Heat-Sink Package
Transcend Heat-Sink Package
Transcend Heat-Sink Package
AENEON Heat-Sink Package
AENEON Heat-Sink Package
KingBox
EPD212802200E-2
Mushkin
Heat-Sink Package
Mushkin
Heat-Sink Package
Size
SS/DS Chip Brand Chip NO.
4096MB(Kit of 2) DS
2048MB(kit of 2) DS
4096MB(kit of 2) DS
1024MB
DS
N/A
N/A
N/A
N/A
AD21066E002GU
78.0AG9S.9K4
78.AAGAL.9KZ
F2-8500CL5S-1GBPK
2048MB(Kit of 2) DS
4096MB(kit of 2) DS
1024MB
SS
1024MB
SS
1024MB
SS
4096MB(kit of 2) DS
1024MB
DS
512MB
SS
512MB
SS
1024MB
DS
2048MB(Kit of 2) DS
N/A
N/A
GEIL
GEIL
GEIL
N/A
Kingmax
Kingston
Kingston
Kingston
OCZ
F2-8500CL5D-2GBPK
F2-8500CL5D-4GBPK
GB24GB8500C5QC
GE22GB1066C5DC
GE24GB1066C5QC
GX24GB8500C5UDC
KLED48F-A8K15
KHX8500D2/ 512
KHX8500D2K2/1GN
KHX8500D2K2/2GN
OCZ2N1066SR2DK(Epp)
1024MB
Qimonda
HYS64T128000EU-1.9-C2
N/A
Transcend
Transcend
AENEON
AENEON
KingBox
N/A
N/A
TX1066QLU-2GK
TX1066QLJ-2GK
TX1066QLU-4GK
AXT760UD00-19DC97X
AXT860UD20-19E
UL2GD21066PS
996612
996619
DS
2048MB(Kit of 2) SS
2048MB(Kit of 2) DS
4096MB(kit of 2) DS
2048MB(Kit of 2) DS
4096MB(Kit of 2) DS
2048MB
DS
2048MB(kit of 2) DS
4096MB(kit of 2) DS
Timing
Dimm
(Bios)
5-5-5-15
5-5-5-15
5-5-5-15
5-5-5-15
DIMM socket support
Voltage (Optional)
A*
B*
C*
•
2.1V
•
•
•
•
•
•
•
5-5-5-15
5-5-5-15
5
5
5
5
5-5-5-15
5
5
5
5
6
5-5-5-15
5-5-5-15
2.1V
2.1V
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Due to AM3/AM2+ CPU limitation, only one DDR2 1066 DIMM is supported per channel.
When four DDR2 1066 DIMMs are installed, all DIMMs run at 800Mhz frequency by default
for system stability.
DDR2-800MHz capability
DIMM socket
support (Optional)
A*
B*
C*
•
•
•
•
•
•
Part No.
Size
SS/ Chip
DS Brand
Chip NO.
A-Data
A-Data
AD29608A8A-25EG80812
Heat-Sink Package
SS
SS
ADATA
N/A
M2OAD6G3H3160Q1E58
AD2800E001GOU
4-4-4-12
A-Data
A-Data
AD29608A8A-25EG80810
Heat-Sink Package
DS
DS
ADATA
N/A
M2OAD6G314170Q1E58
AD2800E002GOU
•
4-4-4-12 1.9~2.1V •
•
•
•
•
Apacer
Apacer
Corsair
Corsair
AM4B5808CQJS8E0749D
AM4B5808CQJS8E0740E
Heat-Sink Package
Heat-Sink Package
SS
DS
DS
DS
Apacer
Apacer
Corsair
N/A
78.01GA0.9K5
78.A1GA0.9K4
XMS2-6400
CM2X2048-6400C5
5
5
4
5
•
•
•
•
•
•
•
•
•
•
•
Crucial
Heat-Sink Package
SS
N/A
BL12864AA804.8FE5
Crucial
Heat-Sink Package
SS
N/A
BL12864AL804.8FE5
G.SKILL
Heat-Sink Package SN:
8151030036642
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
GL2L64M088BA30EB
GL2L64M088BA30EB
GL2L64M088BA30EB
GL2L64M088BA30EB
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
GL2L128M88BA25AB
GL2L128M88BA25AB
GL2L128M88BA25AB
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
512MB
2048MB
(Kit of 2)
1024MB
4096MB
(Kit of 2)
1024MB
2048MB
1024MB
4096MB
(Kit of 2)
2048MB
(Kit of 2)(EPP)
2048MB
(Kit of 2)(EPP)
512MB
SS
1024MB
1024MB
2048MB
2048MB
4096MB
1024MB
1024MB
1024MB
1024MB
1024MB
1024MB
1024MB
1024MB
1024MB
2048MB
2048MB
2048MB
2048MB
2048MB
2048MB
2048MB
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
DS
G.SKILL
G.SKILL
G.SKILL
G.SKILL
G.SKILL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
1-10
Timing
Dimm
(Bios)
Vendor
Voltage
•
•
•
4
•
•
•
G.SKILL F2-6400CL5D-1GBNQ
5-5-5-15
•
•
•
G.SKILL
G.SKILL
G.SKILL
G.SKILL
N/A
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
GEIL
4
5
4
5
5
5
5
4
5
4
5
4
5
5
5
4
5
4
5
4
5
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
F2-6400CL4D-2GBPK
F2-6400CL5D-2GBNQ
F2-6400CL4D-4GBPK
F2-6400CL5D-4GBPQ
F2-6400CL6Q-16GMQ
GB22GB6400C4DC
GB22GB6400C5DC
GB24GB6400C4QC
GB24GB6400C5QC
GE22GB800C4DC
GE22GB800C5DC
GE24GB800C4QC
GE24GB800C5QC
GX22GB6400DC
GB24GB6400C5DC
GB28GB6400C4QC
GB28GB6400C5QC
GE24GB800C4DC
GE24GB800C5DC
GE28GB800C4QC
GE28GB800C5QC
•
•
•
•
•
•
•
•
ASUS M4N78 PRO
DDR2-800MHz capability
Timing
DIMM socket
Dimm Voltage support (Optional)
A*
B*
C*
(Bios)
•
•
•
5
•
•
•
•
•
•
5
•
•
•
•
•
•
•
•
•
Vendor
Part No.
Size
2048MB
512MB
1024MB
1024MB
2048MB
512MB
GEIL
Hynix
Hynix
Kingmax
kingmax
ELPIDA
GX24GB6400DC
HYMP564U64CP8-S5 AB
HYMP 512U64CP8-S5 AB
KKB8FFBXF-CFA-25U
KLDE88F-B8KB5
KVR800D2N5/ 512
512MB
512MB
1024MB
SS
SS
DS
Elpida
Kingston
Kingston
KVR800D2N6/ 512
KHX6400D2LLK2/1GN
KVR800D2N5/1G
•
•
•
Kingston
Kingston
Heat-Sink Package
HY5PS12821CFP-S5
HY5PS12821CFPS5
KLDD48F-B8KB5
KKB8FFBXF-CFA-25U
E5108AJBG-8E-E
0803A9082
E5108AJBG-8E-E
Heat-Sink Package
D6408TR4CGL25US
L362406PECXA
Heat-Sink Package
Heat-Sink Package
SS/
DS
DS
SS
DS
SS
DS
SS
Chip Brand Chip NO.
GEIL
HY
HY
Kingmax
kingmax
Kingston
DS
DS
Kingston
N/A
KHX6400D2LL/1G
KHX6400D2K2/2G
Kingston
Kingston
Kingston
Micron
Micron
Micron
OCZ
OCZ
OCZ
OCZ
OCZ
E1108ACBG-8E-E
Heat-Sink Package
KVR800D2N6/2G
6ED22D9GKX(ECC)
D9HNP 7YE22(ECC)
6TD22D9GKX(ECC)
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
Heat-Sink Package
DS
DS
DS
SS
SS
DS
DS
DS
DS
DS
DS
Elpida
Kingston
Kingston
Micron
Micron
Micron
OCZ
OCZ
OCZ
OCZ
N/A
KVR800D2N5/2G
KHX6400D2/2G
461625.010819 PTGC
MT9HTF6472AY-80ED4
MT9HTF12872AY-800E1
MT18HTF12872AY-80ED4
OCZ2G800R22GK
OCZ2P800R22GK
OCZ2RPR8002GK
OCZ2VU8004GK
OCZ2P8004GK
PSC
PSC
PSC
PSC
Samsung
Samsung
Samsung
Samsung
Samsung
Transcend
Transcend
Transcend
Transcend
Transcend
Transcend
Transcend
AENEON
AENEON
AENEON
ASINT
ASINT
Century
Elixir
A3R1GE3CFF734MAA0E
A3R1GE3CFF750RABBP(ECC)
PL8E8F73C-8E1
PL8E8G73E-8E1
M378T6553GZS-CF7
K4T1G084QQ-HCF7(ECC)
M378T2863QZS-CF7
K4T1G084QQ-HCF7(ECC)
K4T2G084QA-HCF7
TS64MLQ64V8J
E1108ACBG-8E-E
TQ1243PCF8
7HD22D9GMH
TQ123PJF8F0801
E1108ACBG-8E-E(ECC)
E1108ACBG-8E-E
AET93F25DB 0621
AET03R250C 0732
AET93R25DB 0640
DDRII1208-GE 8115
DDRII1208-GE 8115
HY5PS12821CFP-S5
N2TU16800E-AC
1024MB
2048MB
(Kit of 2)
2048MB
2048MB
2048MB
512MB
1024MB
1024MB
1024MB
1024MB
1024MB
1024MB
4096MB
(Kit of 2)
2048MB
2048MB
2048MB
2048MB
512MB
1024MB
1024MB
2048MB
4096MB
512MB
1024MB
1024MB
1024MB
1024MB
2048MB
2048MB
512MB
1024MB
1024MB
1024MB
2048MB
1024MB
1024MB
DS
DS
DS
DS
SS
SS
SS
DS
DS
SS
SS
SS
DS
DS
DS
DS
SS
SS
DS
SS
DS
DS
SS
PSC
PSC
PSC
PSC
Qimonda
Samsung
Qimonda
Samsung
Samsung
Micron
ELPIDA
Transced
Mircon
Transced
Elpida
Elpida
AENEON
AENEON
AENEON
ASINT
ASINT
Hynix
Elixir
ELIXIR
Elixir
N2TU 51280BE-25C802006Z1DV 1024MB
N2TUG80DE-AC
2048MB
DS
DS
ELIXIR
Elixir
MDT
TAKEMS
UMAX
UMAX
VDATA
18D 51280D-2.50726F
MS18T 51280-2.5P0710
U2S12D30TP-8E
U2S24D30TP-8E
VD29608A8A-25EG20813
SS
SS
DS
DS
SS
MDT
takeMS
UMAX
UMAX
VDATA
AL8E8F73C-8E1
AL7E8E63H-10E1K
SHG772-AA3G
XCP271A3G-A
K4T51083QG-HCF7
M391T2863QZ3-CF7
K4T1G084QQ-HCF7
M391T5663QZ3-CF7
M378T5263AZ3-CF7
7HD22 D9GMH
TS128MLQ64V8U
JM800QLU-1G
TS128MLQ64V8J
JM800QLJ-1G
TS256MLQ72V8U
TS256MLQ64V8U
AET660UD00-25DB98X
AET760UD00-25DC08X
AET760UD00-25DB97X
SLY2128M8-JGE
SLZ2128M8-JGE
28V0H8
M2Y1G64TU88D5B-AC
0828.GS
M2Y1G64TU8HB0B-25C
M2Y2G64TU8HD5B-AC
0826.SG
MDT 512MB
TMS51B264C081-805EP
D48001GP3-63BJU
D48002GP0-73BCU
M2GVD6G3H3160Q1E52
Kingston
Kingston
Kingston
Chapter 1: Product introduction
512MB
512MB
1024MB
2048MB
512MB
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
5
•
•
•
•
•
5
5
•
•
•
•
•
•
•
•
•
•
•
6
5
4
4
6
5
5
6
6
5
5
5
5
5
5
5
5
5
5
•
•
•
•
•
•
•
•
•
1-11
DDR2-667MHz capability
Vendor
Part No.
Size
SS/DS Chip Brand Chip NO.
A-Data
A-Data
Apacer
Apacer
Apacer
Apacer
Apacer
Corsair
G.SKILL
AD29608A8A-3EG80814
AD20908A8A-3EG 30724
AM4B5708GQJS7E06332F
AM4B5708JQJS7E0751C
AM4B5808CQJS7E0751C
AM4B5708GQJS7E0636B
78.A1G9O.9K4
Heat-Sink Package
D2 64M8CCF 0815 C7173S
DS
DS
SS
SS
SS
DS
DS
DS
DS
ADATA
ADATA
Apacer
Apacer
Apacer
Apacer
Apacer
Corsair
G.SKILL
G.SKILL
1024MB
2048MB
512MB
512MB
1024MB
1024MB
2048MB
1024MB
2048MB
(Kit of 2)
4096MB
(Kit of 2)
2048MB
2048MB
512MB
1024MB
512MB
DIMM socket
Timing
Dimm Voltage support
(Optional)
(Bios)
A* B* C*
•
•
•
M2OAD5G314170Q1C58
•
•
•
M2OAD5H3J4170I1C53
•
AU 512E667C5KBGC
5
•
•
•
78.91G92.9K5
5
•
•
•
78.01G9O.9K5
5
•
•
•
AU01GE667C5KBGC
•
•
•
AM4B5808CQJS7E0749B 5
•
•
•
XMS2-5400
4
•
•
•
F2-5400PHU2-2GBNT
5-5-5-15
Heat-Sink Package SN:
8151030036559
Heat-Sink Package
Heat-Sink Package
KKEA88B4LAUG-29DX
KKEA88B4LAUG-29DX
SO1237650821 SBP
D6408TR4CGL25USL0749
05PECNB
E5108AJBG-8E-E(ECC)
1024MB
SO1280420822 SOP
1024MB
D6408TR4CGL25USL1563
04PECXA
7RE22 D9HNL
2048MB
E1108ACBG-8E-E 0813A90CC 2048MB
NT5TU128M8DE-3C(ECC)
2048MB
NT5TU64M8AE-3C
512MB
NT1GT64U8HB0BY-3C
1024MB
DS
G.SKILL
F2-5300CL5D-4GBMQ
5-5-5-15
•
•
•
DS
DS
SS
DS
SS
GEIL
GEIL
Kingmax
Kingmax
Kingston
GX22GB5300LX
GX24GB5300LDC
KLCC28F-A8KB5
KLCD48F-A8KB5
KVR667D2N5/ 512
5
5
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
DS
DS
Elpida
Kingston
KVR667D2E5/1G
KVR667D2N5/1G
•
•
•
•
•
•
DS
DS
DS
SS
DS
Micron
ELPIDA
Nanya
Nanya
Nanya
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
A3R12E3JFF717B9A00
512MB
A3R1GE3CFF734MAA0J
1024MB
A3R12E3JFF717B9A01
1024MB
HYB18T
512MB
512B00B2F3SFSS28171
HYB18T
1024MB
512B00B2F3SFSS28171
K4T2G084QA-HCE6
4096MB
PG 64M8-800 0750
1024MB
E5108AJBG-6E-E
1024MB
AET93R300B 0634
512MB
AET93R300B 0639
1024MB
AET03F30DB 0730
2048MB
DDRII6408-6E
512MB
DDRII1208-6E 8115
1024MB
NT5TU64M8AE-3C
512MB
HY5PS12821AFP-Y5
1024MB
M2TU 51280AE1024MB
3C717095R28F
N2TU 51280BE1024MB
3C639009W1CF
EPD264082200-4
512MB
HY5PS12821CFP-Y5 C 702AA 1024MB
18D 51201D-30726E
512MB
18D 51280D-30646E
1024MB
MS18T 51280-3S0627D
512MB
MS18T 51280-3
512MB
MS18T 51280-3SP0717A
1024MB
U2S12D30YP-6E
1024MB
U2S24D30TP-6E
2048MB
SS
SS
DS
SS
PSC
PSC
PSC
Qimonda
KVR667D2N5/2G
KVR667D2N5/2G
KVR667D2E5/2G
NT 512T64U88A1BY-3C
NT5TU64M8BE3C72155700CP
AL6E8E63J-6E1
AL7E8F73C-6E1
AL6E8E63J-6E1
HYS64T64000EU-3S-B2
•
•
•
•
•
•
•
•
•
•
•
•
DS
Qimonda
HYS64T128020EU-3S-B2
•
•
•
DS
DS
DS
SS
DS
DS
SS
SS
SS
DS
DS
Samsung
Super Talent
Elpida
AENEON
AENEON
AENEON
Asint
ASINT
Nanya
Hynix
elixir
M378T5263AZ3-CE6
T667UB1GV
JM667QLJ-1G
AET660UD00-30DB97X
AET760UD00-30DB97X
AET860UD00-30DB08X
SLX264M8-J6E
SLY2128M8-J6E
CENTURY 512MB
CENTURY 1G
M2Y1G64TU8HA2B-3C
•
•
•
•
•
•
•
•
•
•
•
•
•
5
•
•
•
•
•
•
•
•
•
•
1.7-1.9 •
DS
Elixir
M2Y1G64TU8HBOB-3C
5
•
•
•
SS
DS
DS
DS
SS
SS
DS
DS
DS
KINGBOX
Hynix
MDT
MDT
takeMS
takeMS
takeMS
UMAX
UMAX
512MB 667MHz
LRMP 512U64A8-Y5
DDRII 512 PC667
MDT 1024MB
TMS51B264C081-665AP
TMS51B264C081-665QI
TMS1GB264C081-665AP
D46701GP3-63BJU
D46702GP0-73BCU
5
4
4
5
5
5
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
GEIL
GEIL
Kingmax
Kingmax
Kingston
Kingston
Kingston
Kingston
Kingston
Kingston
Nanya
Nanya
PSC
PSC
PSC
Qimonda
Qimonda
Samsung
Super Talent
Transcend
AENEON
AENEON
AENEON
Asint
ASINT
Century
Century
ELIXIR
Elixir
KINGBOX
Leadmax
MDT
MDT
TAKEMS
TAKEMS
TAKEMS
UMAX
UMAX
5
5
5
5
5
5
5
5
5
5
•
•
•
•
•
•
Side(s): SS - Single-sided DS - Double-sided
DIMM support:
• A*: Supports one module inserted into either slot as Single-channel memory
configuration.
• B*: Supports two modules inserted into either the yellow slots or the black slots as one
pair of Dual-channel memory configuration.
• C*: Supports four modules inserted into both the yellow slots and the black slots as two
pairs of Dual-channel memory configuration.
Visit the ASUS website for the latest QVL.
1-12
ASUS M4N78 PRO
1.7.3
Installing a DIMM
Unplug the power supply before adding or removing DIMMs or other system components.
Failure to do so can cause severe damage to both the motherboard and the components.
1.
Press the retaining clips outward to
unlock a DDR2 DIMM socket.
2.
Align a DIMM on the socket such that
the notch on the DIMM matches the
break on the socket.
2
DDR2 DIMM notch
1
1
Unlocked retaining clip
A DDR2 DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a
DIMM into a socket to avoid damaging the DIMM.
3.
Firmly insert the DIMM into the socket
until the retaining clips snap back in
place and the DIMM is properly seated.
3
Locked Retaining Clip
1.7.4
Removing a DIMM
To remove a DIMM:
1.
Simultaneously press the retaining clips
outward to unlock the DIMM.
Support the DIMM lightly with your
fingers when pressing the retaining
clips. The DIMM might get damaged
when it flips out with extra force.
2.
Remove the DIMM from the socket.
Chapter 1: Product introduction
2
1
1
DDR2 DIMM notch
1-13
1.8
Expansion slots
In the future, you may need to install expansion cards. The following sub‑sections describe
the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.8.1
Installing an expansion card
To install an expansion card:
1.
Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.
2.
Remove the system unit cover (if your motherboard is already installed in a chassis).
3.
Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.
4.
Align the card connector with the slot and press firmly until the card is completely
seated on the slot.
5.
Secure the card to the chassis with the screw you removed earlier.
6.
Replace the system cover.
1.8.2
Configuring an expansion card
After installing the expansion card, configure it by adjusting the software settings.
1.
Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2.
Assign an IRQ to the card.
3.
Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI
groups, making the system unstable and the card inoperable. Refer to the table on the next
page for details.
1.8.3
PCI slots
1.8.4
PCI Express x1 slots
1.8.5
PCI Express x16 slot
The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specifications.
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specifications.
This motherboard supports a PCI Express x16 graphics card that complies with the PCI
Express specifications.
1-14
ASUS M4N78 PRO
1.9
1.
Jumpers
Clear RTC RAM (CLRTC)
This jumper allows you to
clear the Real Time Clock
(RTC) RAM in CMOS. You can
clear the CMOS memory of
date, time, and system setup
parameters by erasing the
CMOS RTC RAM data. The
onboard button cell battery
powers the RAM data in
CMOS, which include system
setup information such as
system passwords.
To erase the RTC RAM
1. Turn OFF the computer and unplug the power cord.
2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3
for about 5~10 seconds, then move the cap back to pins 1-2.
3. Plug the power cord and turn ON the computer.
4. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After the CMOS clearance, reinstall the battery.
• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the C.P.R. (CPU Parameter Recall) feature. Shut
down and reboot the system so the BIOS can automatically reset parameter settings to
default values.
• Due to the chipset behavior, AC power off is required to enable C.P.R. function. You
must turn off and on the power supply or unplug and plug the power cord before
rebooting the system.
2.
Keyboard power (3-pin KBPWR)
This jumper allows you to enable
or disable the keyboard wake-up
feature. Set this jumper to pins 2-3
(+5VSB) to wake up the computer
by pressing a key on the keyboard
(the default is the Space Bar). This
feature requires an ATX power
supply that can supply at least
1A on the +5VSB lead, and a
corresponding setting in the BIOS.
Chapter 1: Product introduction
1-15
3.
USB device wake-up (3-pin USBPW1-4, USBPW5-8, USBPW9-12)
Set these jumpers to +5V to wake up the computer from S1 sleep mode (CPU
stopped, DRAM refreshed, system running in low power mode) using the connected
USB devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to
CPU, DRAM in slow refresh, power supply in reduced power mode). The USBPW1-4
jumpers are for the rear USB ports. The USBPW5-8 and USBPW9-12 jumpers are for
the internal USB connectors that you connect to additional USB ports.
1.10
Connectors
1.10.1
Rear panel connectors
1.
PS/2 mouse port. This port is for a PS/2 mouse.
2.
Video Graphics Adapter (VGA) port This 15-pin port is for a VGA monitor or other
VGA-compatible devices.
3.
LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN)
through a network hub.
LAN port LED indications
1-16
Status
Left LED
Right LED
OFF
OFF
OFF
10 Mbps connection
Orange (blinking during
data activity)
OFF
100 Mbps connection
OFF
Orange (blinking during data activity)
1 Gbps connection
OFF
Green (blinking during data activity)
Left
LED
Right
LED
LAN port
ASUS M4N78 PRO
4. Center/Subwoofer port (orange). This port connects the center/subwoofer speakers.
5.
Rear Speaker Out port (black). This port connects the rear speakers in a 4-channel,
6-channel, or 8-channel audio configuration.
6.
Line In port (light blue). This port connects the tape, CD, DVD player, or other audio
sources.
7.
Line Out port (lime). This port connects a headphone or a speaker. In 4-channel, 6channel, and 8-channel configuration, the function of this port becomes Front Speaker
Out.
8.
Microphone port (pink). This port connects a microphone.
9.
Side Speaker Out port (gray). This port connects the side speakers in an 8-channel
audio configuration.
Refer to the audio configuration table below for the function of the audio ports in 2, 4, 6, or
8-channel configuration.
Audio 2, 4, 6-channel configuration
Port
Headset
2-channel
4-channel
6-channel
8-channel
Light Blue
Line In
Line In
Line In
Line In
Lime
Line Out
Front Speaker Out
Front Speaker Out
Front Speaker Out
Pink
Mic In
Mic In
Mic In
Mic In
Orange
–
–
Center/Subwoofer
Center/Subwoofer
Black
–
Rear Speaker Out
Rear Speaker Ou
Rear Speaker Out
Gray
–
–
–
Side Speaker Out
10. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
11.
USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are
available for connecting USB 2.0 devices.
12. Optical S/PDIF Out port. This port connects an external audio output device via an
optical S/PDIF cable.
13. DVI-I Out port. This port is for any DVI-I compatible device and are HDCP compliant,
allowing playback of HD DVD, Blu-Ray and other protected content.
14. HDMI Out port. This port is for a high-definition multimedia interface (HDMI) connector.
15. PS/2 keyboard port. This port is for a PS/2 keyboard.
Dual display table
This table indicates whether the dual display you want to use is supported or not.
Dual display output
Support
DVI + D-Sub
•
HDMI + D-Sub
•
DVI + HDMI
Chapter 1: Product introduction
Not support
•
1-17
• Playback of HD DVD and Blu-Ray Discs
For better playback quality, we suggest that you follow the system requirements in the suggested list below.
Suggested list
CPU
AMD® Athlon 64 x2 5000+
DIMM
DDR2 800MHz 2GB
BIOS setup
Frame Buffer Size--256MB or higher
Playback
software
CyberLink® PowerDVD 8.0 Ultra
• To play HD DVD or Blu-Ray Disc, ensure to use an HDCP compliant monitor.
Troubleshooting on HDTV overscaling or underscaling:
If your desktop is extending beyond the viewable display area or the desktop or image is not
filling the entire display area while using the onboard HDMI out port and the HDMI cable, you
can resize the desktop appearing on your HDTV screen.
To resize your HDTV desktop:
1.
Install NVIDIA Chipset Driver Program from the
motherboard support DVD.
2.
Right-click the desktop and select NVIDIA Control
Panel.
3.
Under Video & Television, select Resize HDTV
desktop.
4.
Select Resize my desktop and click Resize
Desktop.
5.
A full-screen adjustment tool appears. Use the scroll bar to resize
the desktop to fit your display device. Click OK to exit.
The Resize my desktop function in the NVIDIA Control Panel appears only when you are
using an HDTV compliance resolution such as 480i, 720i, or 1080i.
1.10.2
1.
Internal connectors
Optical drive audio in connector
(4-pin CD)
This connector allows you to receive
stereo audio input from sound sources
such as a CD-ROM, TV tuner, or
MPEG card.
1-18
ASUS M4N78 PRO
2.
CPU, Chassis and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1,
3-pin PWR_FAN)
The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a total of
1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan connectors on the
motherboard, making sure that the black wire of each cable matches the ground pin of
the connector.
Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the
system may damage the motherboard components. These are not jumpers! DO NOT place
jumper caps on the fan connectors.
Only the CPU_FAN and CHA_FAN1 connectors support the ASUS Q FAN 2 feature.
3.
Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch. Connect
one end of the chassis intrusion sensor or switch cable to this connector. The chassis
intrusion sensor or switch sends a high-level signal to this connector when a chassis
component is removed or replaced. The signal is then generated as a chassis intrusion
event.
By default, the pins labeled “Chassis Signal” and “Ground” are shorted with a jumper
cap. Remove the jumper caps only when you intend to use the chassis intrusion
detection feature.
Chapter 1: Product introduction
1-19
4.
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for an ATX power supply. The plugs from the power supply are
designed to fit these connectors in only one orientation. Find the proper orientation and
push down firmly until the connectors completely fit.
• We recommend that you use an ATX 12 V Specification 2.0‑compliant power supply
unit (PSU) with a minimum of 300 W power rating. This PSU type has 24-pin and 4-pin
power plugs.
• If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin
power plug can provide at least 15 A on +12 V and that the PSU has a minimum power
rating of 300 W. The system may become unstable or may not boot up if the power is
inadequate.
• Do not forget to connect the 4-pin ATX +12 V power plug. Otherwise, the system will not
boot up.
• We recommend that you use a PSU with higher power output when configuring a
system with more power-consuming devices or when you intend to install additional
devices. The system may become unstable or may not boot up if the power is
inadequate.
• If you are uncertain about the minimum power supply requirement for your system,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
5.
Serial port connector (10-1 pin COM1)
The connector is for a serial (COM) port. Connect the serial port module cable to the
connector, then install the module to a slot opening at the back of the system chassis.
The serial port bracket (COM1) is purchased separately.
1-20
ASUS M4N78 PRO
6.
IDE connector (40-1 pin PRI_IDE)
The onboard IDE connector is for Ultra DMA 133/100/66 signal cable. There are
three connectors on each Ultra DMA 133 / 100 / 66 signal cable: blue, black, and gray.
Connect the blue connector to the motherboard’s IDE connector, then select one of the
following modes to configure your devices:
Single device
Drive jumper setting
Mode of device(s)
Cable connector
Cable-Select or Master
-
Black
Master
Black
Cable-Select
Two devices
Slave
Master
Master
Slave
Slave
Gray
Black or gray
• Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA
cable connector. This prevents incorrect insertion when you connect the IDE cable.
• Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.
If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have the
same setting.
Chapter 1: Product introduction
1-21
7.
Serial ATA connectors (7-pin SATA1-6)
These connectors are for the Serial ATA signal cables for Serial ATA hard disk and
optical disk drives.
If you install SATA hard disk drives to the SATA1/2/3/4/5/6 connectors, you can create
a RAID 0, RAID 1, RAID 5, RAID 10 and JBOD configuration through the onboard
NVIDIA® GeForce 8300 controller.
• SATA1–4 connectors are set to [SATA Mode] by default. If you intend to create a Serial
ATA RAID set using these connectors, set the SATA Mode select item in the BIOS to
[RAID Mode].
• Before creating a RAID set, refer to the manual bundled in the motherboard support
DVD.
• SATA 5–6 connectors support AHCI mode and RAID mode only. Make sure to install the
AHCI driver or RAID driver in the bundled support DVD before connecting devices to
SATA 5–6 connectors. Otherwise, the devices will not work.
• Due to chipset limitation, when you set any of the SATA ports to RAID mode, all SATA
ports run at RAID mode simultaneously.
• You must install the Windows® XP Service Pack 1 before using Serial ATA hard disk
drives. The Serial ATA RAID feature (RAID 0 and RAID 1) is available only if you are
using Windows® XP or later version.
1-22
ASUS M4N78 PRO
8.
System panel connector (10-1 pin PANEL)
This connector supports several chassis-mounted functions.
•
System power LED (2-pin PWRLED)
This 2-pin connector is for the system power LED. Connect the chassis power LED
cable to this connector. The system power LED lights up when you turn on the system
power, and blinks when the system is in sleep mode.
•
Hard disk drive activity LED (2-pin HDLED)
This 2-pin connector is for the HDD Activity LED. Connect the HDD Activity LED cable
to this connector. The IDE LED lights up or flashes when data is read from or written to
the HDD.
•
Power/Soft-off button (2-pin PWRBTN)
This 2-pin connector is for the system power button. Pressing the power button turns
the system ON or puts the system in SLEEP or SOFT-OFF mode depending on the
BIOS settings. Pressing the power switch for more than four seconds while the system
is ON turns the system OFF.
•
Reset button (2-pin RESET)
This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.
9.
Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) ports.
The S/PDIF module is purchased separately.
Chapter 1: Product introduction
1-23
10. USB connectors (10-1 pin USB56, USB78, USB910, USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specification that supports up to
480 Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
11.
Floppy disk drive connector (34-1 pin FLOPPY)
This connector is for a Floppy Disk Drive (FDD) signal cable. Insert one end of the
cable to this connector, then connect the other end to the signal connector at the back
of the floppy disk drive.
• Pin 5 on the connector is removed to prevent incorrect cable connection when using an
FDD cable with a covered Pin 5.
• The Floppy Disk Drive signal cable is purchased separately.
1-24
ASUS M4N78 PRO
12. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either High Definition Audio or AC`97 audio standard. Connect one end of the front
panel audio I/O module cable to this connector.
• We recommend that you connect a high-definition front panel audio module to this
connector to avail of the motherboard high-definition audio capability.
• If you want to connect a high-definition front panel audio module to this connector,
ensure that the Front Panel Select item in the BIOS is set to [HD Audio]. If you want
to connect an AC’97 front panel audio module to this connector, set the item to [AC97].
See page 2-20 for details.
ASUS Q-Connector (system panel)
Use the ASUS Q-Connector to connect/disconnect the chassis front panel cables. Refer to
the following instructions to install the ASUS Q-Connector.
1.
Connect the front panel cables to the ASUS Q-Connector.
Refer to the labels on the Q-Connector to know the detailed
pin definitions, and then match them to their respective front
panel cable labels.
The labels on the front panel cables may vary depending on
the chassis model.
2.
Install the ASUS Q-Connector to the
3.
system panel connector, making sure
the orientation matches the labels on the
motherboard.
Chapter 1: Product introduction
IDE_LED+
IDE_LED-
PWR
Ground
Reset
Ground
IDE_LED
SW
POWER
RESET
SW
The front panel functions are now
enabled. The figure shows the
Q-Connector is properly installed on
the motherboard.
1-25
1.11
Software support
1.11.1
Installing an operating system
This motherboard supports Windows® XP/Vista Operating Systems (OS). Always install the
latest OS version and corresponding updates to maximize the features of your hardware.
• Motherboard settings and hardware options vary. Use the setup procedures presented in
this chapter for reference only. Refer to your OS documentation for detailed information.
• Ensure that you install Windows® XP Service Pack 1 or later versions before installing
the drivers for better compatibility and system stability.
1.11.2
Support DVD information
The Support DVD that comes with the motherboard package contains the drivers, software
applications, and utilities that you can install to avail all motherboard features.
• The contents of the Support DVD are subject to change at any time without notice. Visit
the ASUS website at www.asus.com for updates.
• For detailed software instructions, see the Manual menu in the Support DVD or
download the latest software manual from the ASUS website at www.asus.com.
To run the Support DVD
Place the Support DVD to the optical drive. The DVD automatically displays the Drivers menu
if Autorun is enabled in your computer.
The screen below is used for reference only.
Click an icon to
display Support DVD/
motherboard information
Click an item to install
If Autorun is NOT enabled in your computer, browse the contents of the Support DVD to
locate the file ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run
the DVD.
1-26
ASUS M4N78 PRO
Chapter 2
BIOS setup
2.1
Managing and updating your BIOS
Save a copy of the original motherboard BIOS file to a bootable floppy disk or a USB flash
disk in case you need to restore the BIOS in the future. Copy the original motherboard
BIOS using the ASUS Update or AFUDOS utilities.
2.1.1
Creating a bootable floppy disk
To create a bootable floppy disk
1.
2.
Insert a formatted, high density 1.44MB floppy disk to the floppy disk drive.
Follow the instructions based on your system environment.
DOS environment
a. At the DOS prompt, type format A:/S then press <Enter>.
Windows® XP environment
a. From the Windows® desktop, click Start > My Computer.
b. Select the 3 1/2 Floppy Drive icon.
c. Click File from the menu, then select Format. A Format 3 1/2 Floppy window
appears.
d. Select Create an MS-DOS startup disk from the format options field, then click
Start.
Windows® Vista environment
a. From the Windows® desktop, click
> Computer.
b. Right-click Floppy Disk Drive then click Format to display the Format 3 1/2
Floppy dialog box.
c. Select the Create an MS-DOS startup disk check box.
d. Click Start.
2.
Copy the original or the latest motherboard BIOS file to the bootable floppy disk.
Chapter 2: BIOS setup
2-1
2.1.2
ASUS Update utility
The ASUS Update is a utility that allows you to manage, save, and update the motherboard
BIOS in Windows® environment.
• ASUS Update requires an Internet connection either through a network or an Internet
Service Provider (ISP).
• This utility is available in the support DVD that comes with the motherboard package.
Installing ASUS Update
To install ASUS Update:
1.
Place the support DVD in the optical drive. The Drivers menu appears.
2.
Click the Utilities tab, and then click Install ASUS Update.
3.
Follow the onscreen instructions to complete the installation.
Quit all Windows® applications before you update the BIOS using this utility.
Updating the BIOS
To update the BIOS:
1.
From the Windows® desktop, click Start > Programs > ASUS > ASUSUpdate >
ASUSUpdate to launch the ASUS Update utility.
2.
From the dropdown list, select any of the updating process:
Updating from the Internet
a. Select Update BIOS from the Internet, and then click Next.
b. Select the ASUS FTP site nearest you to avoid network traffic, or click Auto
Select, and then click Next.
c. From the FTP site, select the BIOS version that you wish to download, and then
click Next.
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.
Updating from a BIOS file
a. Select Update BIOS from a file, and then click Next.
b. Locate the BIOS file from the Open window, and then click Open.
3.
2-2
Follow the onscreen instructions to complete the updating process.
ASUS M4N78 PRO
2.1.3
ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without having to use a
bootable floppy disk or a DOS‑based utility.
Download the latest BIOS file from the ASUS website at www.asus.com.
To update the BIOS using EZ Flash 2:
1.
Insert the floppy/USB flash disk that contains the latest BIOS file to the floppy disk
drive or the USB port, then launch EZ Flash 2. You can launch EZ Flash 2 in two ways.
a. Press <Alt> + <F2> during POST to display the following:
ASUSTek EZ Flash 2 BIOS ROM Utility V3.34
FLASH TYPE: MXIC 25L8005
Current ROM
BOARD: M4N78 PRO
VER: 0203
DATE: 12/12/2008
PATH: A:\
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
A:
Note
[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [ESC] Exit
b. Enter the BIOS setup program. Go to the Tools menu to select EZ Flash 2 and
press <Enter> to enable it.
Press <Tab> to switch between drives until the correct BIOS file is found.
4.
When the correct BIOS file is found, EZ Flash 2 performs the BIOS update process
and automatically reboots the system when done.
• This function can support devices such as USB flash disk, or floppy disk with FAT 32/16
format and single partition only.
• Do not shut down or reset the system while updating the BIOS to prevent system boot
failure!
Chapter 2: BIOS setup
2-3
2.1.4
AFUDOS utility
The AFUDOS utility allows you to update the BIOS file in DOS environment using a bootable
floppy disk. This utility also allows you to copy the current BIOS file that you can use as
backup when the BIOS fails or gets corrupted during the updating process.
• Ensure that you prepare two floppy disks: the bootable floppy disk and the floppy disk
containing the AFUDOS utility and the latest BIOS file.
• Ensure that the floppy disk is not write-protected and has at least 1072KB to save the
AFUDOS and BIOS files.
• The succeeding BIOS screens are for reference only. The actual BIOS screen displays
may not be the same as shown.
Updating the BIOS file
To update the BIOS file using the AFUDOS utility:
1.
Insert the bootable floppy disk into the floppy disk drive to boot the system in DOS
mode.
2.
Replace the bootable floppy disk and insert the floppy disk that contains the AFUDOS
utility and the latest BIOS file.
• Obtain the AFUDOS utility (afudos.exe) from the bundled support DVD and the latest
BIOS file from the ASUS website at www.asus.com.
• We recommend that you write the BIOS filename on a piece of paper. You will need to
key in the exact BIOS filename at the DOS prompt later.
3.
At the DOS prompt, key in afudos /i[filename]
where [filename] is the BIOS file in the floppy disk.
A:\>afudos /iM4N78PRO.ROM
Press <Enter>.
Do not shut down or reset the system while updating the BIOS to prevent system boot
failure!
4.
2-4
The utility returns to the DOS prompt after the BIOS updating process is completed.
Reboot the system from the hard disk drive.
ASUS M4N78 PRO
2.1.5
ASUS CrashFree BIOS 2 utility
The ASUS CrashFree BIOS 2 utility is an auto recovery tool that allows you to
restore the BIOS file when it fails or gets corrupted during the updating process.
You can restore a corrupted BIOS file using the motherboard support DVD or a
floppy disk that contains the BIOS file.
The BIOS file in the motherboard support DVD may be older than the BIOS file
published on the ASUS official website. If you want to use the newer BIOS file,
download the file at support.asus.com and save it to a floppy disk.
Recovering the BIOS
To recover the BIOS
1.
Turn on the system.
2.
Insert the motherboard support DVD to the optical drive, or the floppy disk containing
the BIOS file to the floppy disk drive.
3.
The utility automatically checks the devices for the BIOS file. When found, the utility
reads the BIOS file and starts flashing the corrupted BIOS file.
4.
Turn off the system after the utility completes the updating process and power on
again.
5.
The system requires you to enter BIOS Setup to recover BIOS setting. To ensure
system compatibility and stability, we recommend that you press <F2> to load default
BIOS values.
DO NOT shut down or reset the system while recovering the BIOS! Doing so
can cause system boot failure!
Chapter 2: BIOS setup
2-5
2.2
BIOS setup program
This motherboard supports a programmable firmware chip that you can update using the
provided utility described in section 2.1 Managing and updating your BIOS.
Use the BIOS Setup program when you are installing a motherboard, reconfiguring your
system, or prompted to “Run Setup”. This section explains how to configure your system
using this utility.
Even if you are not prompted to use the Setup program, you can change the configuration of
your computer in the future. For example, you can enable the security password feature or
change the power management settings. This requires you to reconfigure your system using
the BIOS Setup program so that the computer can recognize these changes and record them
in the CMOS RAM of the firmware chip.
The firmware chip on the motherboard stores the Setup utility. When you start up the
computer, the system provides you with the opportunity to run this program. Press <Del>
during the Power-On Self-Test (POST) to enter the Setup utility. Otherwise, POST continues
with its test routines.
If you wish to enter Setup after POST, reboot the system by doing any of the following
procedures:
• Restart using the OS standard shut-down procedure.
•
Press <Ctrl>+<Alt>+<Del> simultaneously.
•
Press the reset button on the system chassis.
•
Press the power button to turn the system off then back on.
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to force reset from
a running operating system can cause damage to your data or system. We recommend to
always shut-down the system properly from the operating system.
The Setup program is designed to make it as easy to use as possible. Being a menu-driven
program, it lets you scroll through the various submenus and make your selections from the
available options using the navigation keys.
• The default BIOS settings for this motherboard apply for most conditions to ensure
optimum performance. If the system becomes unstable after changing any BIOS
settings, load the default settings to ensure system compatibility and stability. Select the
Load Setups Default item under the Exit Menu. See section 2.9 Exit Menu.
• The BIOS setup screens shown in this section are for reference purposes only, and may
not exactly match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS file for this
motherboard.
2-6
ASUS M4N78 PRO
2.2.1
BIOS menu screen
Menu items
Menu bar
Configuration fields
General help
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time
System Date
Legacy Diskette A
Language
Primary IDE Master
Primary IDE Slave
SATA1 SATA2 SATA3
SATA4
[10:17:30]
[Tue 12/12/2008] [1.44M, 3.5 in.]
[English]
:[Not
:[Not
:[Not
:[Not
:[Not
:[Not
Detected]
Detected]
Detected]
Detected]
Detected]
Detected]
Storage Configuration
System Information
Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.
Use [+] or [-] to
configure system Time.
←→ Select Screen
↑↓ Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Submenu items
2.2.2
Navigation keys
Menu bar
The menu bar on top of the screen has the following main items:
Main
For changing the basic system configuration
Ai Tweaker
For changing the overclocking settings
Advanced
For changing the advanced system settings
Power
For changing the advanced power management (APM) configuration
Boot For changing the system boot configuration
Tools
For changing the system tools configuration
Exit
For selecting the exit options and loading default settings
To select an item on the menu bar, press the right or left arrow key on the keyboard until the
desired item is highlighted.
• The BIOS setup screens shown in this chapter are for reference purposes only, and may
not exactly match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS information.
Chapter 2: BIOS setup
2-7
2.2.3
Navigation keys
At the bottom right corner of a menu screen are the navigation keys for that particular menu.
Use the navigation keys to select items in the menu and change the settings.
Some of the navigation keys differ from one screen to another.
2.2.4
Menu items
2.2.5
Submenu items
2.2.6
Configuration fields
2.2.7
General help
2.2.8
Pop-up window
The highlighted item on the menu bar displays the specific items for that menu. For example,
selecting Main shows the Main menu items.
The other items (Advanced, Power, Boot, Tools, and Exit) on the menu bar have their
respective menu items.
A solid triangle before each item on any menu screen means that the item has a submenu. To
display the submenu, select the item and press <Enter>.
These fields show the values for the menu items. If an item is user‑configurable, you can
change the value of the field opposite the item. You cannot select an item that is not userconfigurable.
A configurable field is enclosed in brackets, and is highlighted when selected. To change the
value of a field, select it then press <Enter> to display a list of options. Refer to 2.2.8 Pop-up
window.
At the top right corner of the menu screen is a brief description of the selected item.
Select a menu item then press <Enter> to
display a pop-up window with the configuration
options for that item.
2.2.9
Scroll bar
A scroll bar appears on the right side of a
menu screen when there are items that do not
fit on the screen. Press the <Up> / <Down>
arrow keys or <Page Up> /<Page Down> keys
to display the other items on the screen.
2-8
BIOS SETUP UTILITY
Main Advanced Power Boot Tools Exit
Suspend Mode [Auto]
ACPI Version Features [Disabled]
ACPI APIC support [Enabled]
Disabled
Enabled
APM Configuration
Hardware Monitor
Use [ENTER], [TAB] or
[SHIFT-TAB] to select
a field.
Use [+] or [-] to
configure system Time.
←→
↑↓
+-
Tab
F1
F10
ESC
Select Screen
Select Item
Change Field
Select Field
General Help
Save and Exit
Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Scroll bar
Pop-up window
ASUS M4N78 PRO
2.3
Main menu
When you enter the BIOS Setup program, the Main menu screen appears, giving you an
overview of the basic system information.
Refer to section 2.2.1 BIOS menu screen for information on the menu screen items and
how to navigate through them.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
System Time
System Date
Legacy Diskette A
Language
Primary IDE Master
Primary IDE Slave
SATA1 SATA2 SATA3
SATA4
[10:17:30]
[Tue 12/12/2008] [1.44M, 3.5 in.]
[English]
:[Not
:[Not
:[Not
:[Not
:[Not
:[Not
Detected]
Detected]
Detected]
Detected]
Detected]
Detected]
Storage Configuration
System Information
Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a field.
Use [+] or [-] to
configure system Time.
←→ Select Screen
↑↓ Select Item
+- Change Field
Tab Select Field
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2.3.1
System Time [xx:xx:xx]
2.3.2
System Date [Day xx/xx/xxxx]
2.3.3
Legacy Diskette A [1.44M, 3.5 in.]
2.3.4
Language [English]
2.3.5
Primary IDE Master/Slave
Allows you to set the system time.
Allows you to set the system date.
Sets the type of floppy drive installed.
Configuration options: [Disabled] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.]
[1.44M, 3.5 in.] [2.88M, 3.5 in.]
Allows you to set the language.
While entering Setup, the BIOS automatically detects the presence of IDE devices. There is
a separate submenu for each IDE device. Select a device item then press <Enter> to display
the IDE device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,
LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These
values are not user-configurable. These items show Not Detected if no IDE device is installed
in the system.
Chapter 2: BIOS setup
2-9
Type [Auto]
Selects the type of IDE drive. Setting to [Auto] allows automatic selection of the appropriate
IDE device type. Select [CDROM] if you are specifically configuring a CD-ROM drive. Select
[ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.
Configuration options: [Not Installed] [Auto] [CDROM] [ARMD]
LBA/Large Mode [Auto]
Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device
supports this mode, and if the device was not previously formatted with LBA mode disabled.
Configuration options: [Disabled] [Auto]
Block (Multi-Sector Transfer) M [Auto]
Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from
and to the device occurs multiple sectors at a time if the device supports multi-sector transfer
feature. When set to [Disabled], the data transfer from and to the device occurs one sector at
a time.
Configuration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode.
Configuration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode.
Configuration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Configuration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer.
Configuration options: [Disabled] [Enabled]
2.3.6
SATA 1–4
While entering Setup, the BIOS automatically detects the presence of Serial ATA devices.
There is a separate submenu for each SATA device. Select a device item then press <Enter>
to display the SATA device information.
The BIOS automatically detects the values opposite the dimmed items (Device, Vendor, Size,
LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and SMART monitoring). These
values are not user-configurable. These items show Not Detected if no Serial ATA device is
installed in the system.
LBA/Large Mode [Auto]
Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the device
supports this mode, and if the device was not previously formatted with LBA mode disabled.
Configuration options: [Disabled] [Auto]
2-10
ASUS M4N78 PRO
Block (Multi-sector Transfer) M [Auto]
Enables or disables data multi-sectors transfers. When set to [Auto], the data transfer from
and to the device occurs multiple sectors at a time if the device supports multi-sector transfer
feature. When set to [Disabled], the data transfer from and to the device occurs one sector at
a time.
Configuration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode.
Configuration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode.
Configuration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Configuration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer.
Configuration options: [Disabled] [Enabled]
2.3.7
Storage Configuration
This menu allows you to configure the SATA devices.
Onboard PCI IDE Controller [Enabled]
Enables or disables the onboard integrated IDE controller.
Configuration options: [Enabled] [Disabled]
OnChip S-ATA Channel [Enabled]
Enables or disables the OnChip SATA Channel.
Configuration options: [Enabled] [Disabled]
SATA Mode Select [SATA Mode]
Allows you to select the SATA type.
Configuration options: [SATA Mode] [RAID Mode] [AHCI Mode]
• If you want the Serial ATA hard disk drives to use the Advanced Host Controller Interface
(AHCI), set this item to [AHCI Mode]. The AHCI allows the onboard storage driver to
enable advanced Serial ATA features that increases storage performance on random
workloads by allowing the drive to internally optimize the order of commands.
• When SATA is configured as [SATA Mode] in BIOS, only SATA port 1-4 can be detected.
Ensure to install the AHCI driver to detect and use SATA port 5-6 in AHCI mode under
OS.
• If you want to create a RAID 0, RAID 1, RAID 5, and RAID 10 configuration from the
Serial ATA hard disk drives, set this item to [RAID Mode].
Chapter 2: BIOS setup
2-11
2.3.8
System Information
This menu gives you an overview of the general system specifications. The BIOS
automatically detects the items in this menu.
BIOS Information
Displays the auto-detected BIOS information.
Processor
Displays the auto-detected CPU specification.
System Memory
Displays the auto-detected system memory.
2.4
Ai Tweaker menu
The Ai Tweaker menu items allow you to configure overclocking-related items.
Take caution when changing the settings of the Ai Tweaker menu items. Incorrect field
values can cause the system to malfunction.
The default values of the following items vary depending on the CPU and memory modules
you install on the motherboard.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
Configure System Frequency/Voltage
AI Overclocking
DRAM Frequency Control
HT Link Speed
CPU Voltage
CPU/NB Voltage
CPU/LDT Spread Spectrum PCIE Spread Spectrum
SATA Spread Spectrum
PCI Spread Spectrum
[Auto]
[Auto]
[Auto]
[Auto]
[Auto]
[Disabled]
[Disabled]
[Disabled]
[Disabled]
Select the target CPU
frequency, and the
relevant parameters
will be auto-adjusted.
Frequencies higher
than CPU manufacturer
recommends are not
guaranteed to be
stable. If the system
becomes unstable,
return to the default.
←→ Select Screen
↑↓ Select Item
+- Change Field
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2.4.1
AI Overclocking [Auto]
Allows selection of CPU overclocking options to achieve desired CPU internal frequency.
Configuration options: [Manual] [Auto]
The following three (3) items appear only when you set the Ai Overclocking item to
[Manual].
2-12
ASUS M4N78 PRO
CPU Ratio [Auto]
Allows you to set the ratio between the CPU Core Clock and the FSB Frequency. Use <+>
and <-> to adjust the ratio. The valid value ranges vary according to your CPU model.
FSB Frequency [200]
Displays the frequency sent by the clock generator to the system bus and PCI bus. Use the
<+> and <-> keys to adjust the FSB frequency. You can also type the desired FSB frequency
using the numeric keypad. The values range from 200 to 600.
PCIE Frequency [100]
Use the <+> and <-> keys to adjust the PCIE frequency. You can also type the desired PCIE
frequency using the numeric keypad. The values range from 100 to 200.
2.4.2
DRAM Frequency Control [Auto]
Allows you to select the DRAM frequency control method.
Configuration options: [Auto] [Manual]
DRAM Frequency [667MHz]
This item appears only when you set the Dram Frequency Control item to [Manual] and
allows you to manually set the DRAM frequency.
Configuration options: [667MHz] [800MHz] [1066MHz]
CPU/NB Frequency [Auto]
This item appears only when you set the AI Overclocking item to [Manual] and allows
selection of the CPU frequency.
Configuration options: [Auto] [800MHz] [1000MHz] [1200MHz] [1400MHz] [1600MHz]
[1800MHz]
2.4.3
HT Link Speed [Auto]
Allows you to set the CPU-Northbridge HyperTransport link speed.
Configuration options: [Auto] [200 MHz] [400 MHz] [600 MHz] [800 MHz] [1 GHz] [1.2 GHz]
[1.4 GHz] [1.6 GHz] [1.8 GHz]
Memory Configuration
This item appears only when you set the AI Overclocking item to [Manual] and allows you to
change the advanced memory settings.
Bank Interleaving [Auto]
Allows you to enable or disable the bank memory interleaving.
Configuration options: [Disabled] [Auto]
Channel Interleaving [Auto]
Allows you to set the channel interleaving mode.
Configuration options: [Disabled] [Address bits 6] [Address bits 12] [XOR of Address
bits [20:16, 6] [XOR of Address bits [20:16, 9]] [Auto]
Enable Clock to All DIMMs [Disabled]
Allows you to enable or disable unused clocks to all the DIMMs.
Configuration options: [Disabled] [Enabled]
MemClk Tristate C3/ATLVID [Disabled]
Allows you to enable or disable MemClk Tri-Stating during C3 and Alt VID.
Chapter 2: BIOS setup
2-13
Configuration options: [Disabled] [Enabled]
Memory Hole Remapping [Enabled]
Allows you to enable or disable memory remapping around memory hole.
Configuration options: [Disabled] [Enabled]
DCT Unganged Mode [Auto]
Allows selection of the unganged DRAM mode.
Configuration options: [Auto] [Enabled] [Disabled]
Power Down Enable [Enabled]
Allows you to enable or disable the DDR power down mode.
Configuration options: [Disabled] [Enabled]
Power Down Mode [Channel]
Appears only when you enable the Power Down Enable item.
Configuration options: [Channel] [Chip Select]
DRAM Timing Configuration
This item appears only when you set the AI Overclocking item to [Manual] and allows you to
change the advanced DRAM timing settings.
The configuration options for some of the following items vary depending on the DIMMs
you install on the motherboard.
DRAM Command Rate [Auto]
Allows selection of the DRAM command rate.
Configuration options: [Auto] [1T] [2T]
DRAM Timing Mode [Auto]
Allows selection of the DRAM Timing Mode.
Configuration options: [Auto] [Both]
The following sub-items appear only when you set the DRAM Timing Mode item to [Both].
DCT0 1st Information: 5-5-5-3(5)-15-19-5-3
TCL [Auto]
Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK] [7 CLK DH_Only]
TRCD [Auto]
Configuration options: [3 CLK] [4 CLK] [5 CLK] [6 CLK] [Auto]
TRP [Auto]
Configuration options: [3 CLK] [4 CLK] [5 CLK] [6 CLK] [Auto]
TRTP [Auto]
Configuration options: [Auto] [2-4 CLK] [3-5 CLK]
TRAS [Auto]
Configuration options: [5 CLK] [6 CLK] – [17 CLK] [18 CLK] [Auto]
TRC [Auto]
Configuration options: [11 CLK] [12 CLK] – [25 CLK] [26 CLK] [Auto]
2-14
ASUS M4N78 PRO
TWR [Auto]
Configuration options: [Auto] [3 CLK] [4 CLK] [5 CLK] [6 CLK]
TRRD [Auto]
Configuration options: [2 CLK] [3 CLK] [4 CLK] [5 CLK] [Auto]
DCT0 2nd Information: 7-105-75
TWTR [Auto]
Specifies the write to read delay when accessing the same DIMM.
Configuration options: [1 CLK] [2 CLK] [3 CLK] [Auto]
TRFC0/TRFC1 [Auto]
Configuration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]
DCT0/DCT1 Strength Config [Auto]
Allows adjustments of the advanced DRAM strength parameters.
Configuration options: [Auto] [DCT 0] [DCT 1] [Both]
The following sub-items appear only when you set the DCT0/DCT1 Strength Config. item
to [DCT 0], [DCT 1] or [Both].
DCT0:CKE drive strength. [Auto]
DCT1:CKE drive strength. [Auto]
Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x]
DCT0:CS/ODT drive strength. [Auto]
DCT1:CS/ODT drive strength. [Auto]
Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x]
DCT0:Address/Command drive strength. [Auto]
DCT1:Address/Command drive strength. [Auto]
Configuration options: [Auto] [1x] [1.25x] [1.5x] [2x]
DCT0:MEMCLK drive strength. [Auto]
DCT1:MEMCLK drive strength. [Auto]
Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x]
DCT0:Data drive strength. [Auto]
DCT1:Data drive strength. [Auto]
Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x]
DCT0:DQS drive strength. [Auto]
DCT1:DQS drive strength. [Auto]
Configuration options: [Auto] [0.75x] [1x] [1.25x] [1.5x]
DCT0:Processor on-die termination [Auto]
DCT1:Processor on-die termination [Auto]
Configuration options: [Auto] [300 ohms +/- 20%] [150 ohms +/- 20%] [75 ohms +/- 20%]
DQS Timing Configuration
This item appears only when you set the AI Overclocking item to [Manual] and allows you to
change the advanced DQS settings.
DQS Timing User Controls [Auto]
Allows adjustments of the advanced DQS parameters.
Chapter 2: BIOS setup
2-15
Configuration options: [Auto] [DCT 0] [DCT 1] [Both]
The following sub-items appear only when you set the DQS Timing User Controls item to
[DCT 0], [DCT 1] or [Both].
CKE Setup Time [Auto]
Allows selection of the default setup time for the CKE pins versus MEMCLK.
Configuration options: [Auto] [1/2 CLK] [1 CLK]
CKE Fine Delay [00]
Appears only when you set the CKE Setup Time item to [1/2 CLK] or [1 CLK]. Allows you to set
how long the CKE pins are delayed from the default setup time. Type the desired values using
the numeric keypad and press the <Enter> key. You can also use the <+> and <-> keys to adjust
the value. The value ranges from 0 to 31.
CS/ODT Setup Time [Auto]
Allows selection of the default setup time for the CS/ODT pins versus MEMCLK.
Configuration options: [Auto] [1/2 CLK] [1 CLK]
CS/ODT Fine Delay [00]
Appears only when you set the CS/ODT Setup Time item to [1/2 CLK] or [1 CLK]. Allows you to
set how long the CS/ODT pins are delayed from the default setup time. Type the desired values
using the numeric keypad and press the <Enter> key. You can also use the <+> and <-> keys to
adjust the value. The value ranges from 0 to 31.
Addr/Cmd Setup Time [Auto]
Allows selection of the default setup time for the Addr/Cmd pins versus MEMCLK.
Configuration options: [Auto] [1/2 CLK] [1 CLK]
Addr/Cmd Fine Delay [00]
Appears only when you set the CKE Setup Time item to [1/2 CLK] or [1 CLK]. Allows you to set
how long the Addr/Cmd pins are delayed from the default setup time. Type the desired values
using the numeric keypad and press the <Enter> key. You can also use the <+> and <-> keys to
adjust the value. The value ranges from 0 to 31.
The following six (6) items are adjusted by typing the desired values using the numeric
keypad and press the <Enter> key. You can also use the <+> and <-> keys to adjust the
value. To restore the default setting, type [auto] using the keyboard and press the <Enter>
key.
2.4.4
CPU Voltage [Auto]
2.4.5
CPU/NB Voltage [Auto]
Allows you to set the CPU voltage.
Allows you to set the voltage between the CPU and Northbridge.
The following four (4) items appear only when you set the Ai Overclocking item to
[Manual].
2.4.6
CPU VDDA Voltage [Auto]
Allows you to set the CPU VDDA voltage. The values range from 2.50V to 2.80V with a 0.10V
interval.
2-16
ASUS M4N78 PRO
2.4.7
DRAM Voltage [Auto]
2.4.8
HT Voltage [Auto]
2.4.9
NB Voltage [Auto]
2.4.10
CPU/LDT Spread Spectrum [Disabled]
2.4.11
PCIE Spread Spectrum [Disabled]
2.4.12
SATA Spread Spectrum [Disabled]
2.4.13
PCI Spread Spectrum [Disabled]
Allows you to set the DRAM voltage. The values range from 1.80V to 2.50V with a 0.10V
interval.
Allows you to set the HyperTransport voltage. The values range from 1.200V to 1.500V with
a 0.10V interval.
Allows you to set the NorthBridge voltage. The values range from 1.100V to 1.400V with a
0.10V interval.
Set to [Disabled] to enhance CPU/LDT overclocking ability or [Enabled] for EMI control.
Configuration options: [Disabled] [Enabled]
Configuration options: [Disabled] [Linear Down]
Configuration options: [Disabled] [Linear Down]
Configuration options: [Disabled] [Linear Down]
Chapter 2: BIOS setup
2-17
2.5
Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Be cautious when changing the settings of the Advanced menu items. Incorrect field values
can cause the system to malfunction.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
CPU Configuration
Chipset
Onboard Devices Configuration
PCIPnP
USB Configuration
2.5.1
Configure CPU.
CPU Configuration
The items in this menu show the CPU-related information that the BIOS automatically
detects.
GART Error Reporting [Disabled]
This option should remain disabled for the normal operation. The driver developer may
enable it for testing purpose.
Configuration options: [Disabled] [Enabled]
Microcode Updation [Enabled]
Allows you to enable or disable the microcode updation.
Configuration options: [Disabled] [Enabled]
Secure Virtual Machine Mode [Enabled]
Allows you to enable or disable the AMD Secure Virtual Machine mode (SVM).
Configuration options: [Disabled] [Enabled]
Cool’n’Quiet [Enabled]
Enables or disables the AMD Cool’n’Quiet function.
Configuration options: [Disabled] [Enabled]
ACPI SRAT Table [Enabled]
Enables or disables the building of ACPI SRAT table.
Configuration options: [Disabled] [Enabled]
CPU Prefetching [Enabled]
Allows you to enable or disable CPU prefetching.
Configuration options: [Enabled] [Disabled]
AMD Live! [Disabled]
Enables or disables the AMD Live! technology support.
Configuration options: [Disabled] [Enabled]
C1E Support [Disabled]
Allows you to enable or disable the Enhanced Halt State support.
Configuration options: [Disabled] [Enable]
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ASUS M4N78 PRO
NVIDIA Core Calibration [Disabled]
Setting this item to [All Cores] or [Per Core] will enhance the processor’s overclocking ability.
Configuration options: [Disabled] [Auto] [All Cores] [Per Cores]
2.5.2
Chipset
The Chipset menu allows you to change the advanced chipset settings. Select an item then
press <Enter> to display the submenu.
NorthBridge Configuration
ECC Configuration
ECC Mode [Disabled]
Disables or sets the DRAM ECC mode that allows the hardware to report and correct
memory errors. Set this item to [Basic], [Good], or [Max] to allow ECC mode autoadjustment. Set this item to [Super] to adjust the DRAM BG Scrub sub-item manually.
You may also adjust all sub-items by setting this item to [User].
Configuration options: [Disabled] [Basic] [Good] [Super] [Max] [User]
DRAM ECC Enable [Disabled]
Set this item to [Enabled] to allow hardware to report and correct memory errors automatically,
maintaining system integrity.
Configuration options: [Disabled] [Enabled]
DRAM SCRUB REDIRECT [Disabled]
Enables or disables the DRAM SCRUB REDIRECT feature that allows the system to correct the
DRAM ECC errors immediately when they occur.
Configuration options: [Disabled] [Enabled]
4-Bit ECC Mode [Disabled]
Enables or disables the ECC chip kill feature.
Configuration options: [Disabled] [Enabled]
DRAM BG SCRUB [Disabled]
Disables or sets the DRAM BG Scrub.
Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us]
[10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms]
[10.49ms] [20.97ms] [42.00ms] [84.00ms]
Data Cache BG Scrub [Disabled]
Disables or sets the Data Cache BG Scrub. This item allows the L1 Data Cache RAM to be
corrected when idle.
Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us]
[10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms]
[10.49ms] [20.97ms] [42.00ms] [84.00ms]
L2/L3 Cache BG Scrub [Disabled]
Disables or sets the L2/L3 Cache BG Scrub. This item allows the L2/L3 Data Cache RAM to be
corrected when idle.
Configuration options: [Disabled] [40ns] [80ns] [160ns] [320ns] [640ns] [1.28us] [2.56us] [5.12us]
[10.2us] [20.5us] [41.0us] [81.9us] [163.8us] [327.7us] [655.4us] [1.31ms] [2.62ms] [5.24ms]
[10.49ms] [20.97ms] [42.00ms] [84.00ms]
Chapter 2: BIOS setup
2-19
SouthBridge Configuration
Hybrid SLI Support [Disabled]
Allows you to enable or disable the NVIDIA Hybrid SLI technology. This item is not userconfigurable when no external graphics card is installed.
Configuration options: [Disabled] [Auto]
Hybrid SLI Mode [mGPU Auto]
Allows you to select the Hybrid SLI mode.
Configuration options: [mGPU Auto] [mGPU always enable]
iGPU Frame Buffer Detect [Disabled]
Configuration options: [Disabled] [Auto]
Hybrid SLI Frame buffer size [256MB]
This item becomes user-configurable when you set the iGPU Frame Buffer Detect item to
[Disabled] and allows you to set the frame buffer size for the onboard GPU.
Configuration options: [32MB] [64MB] [128MB] [256MB] [512MB] [Disabled]
Primary Graphics Adapter [PCIE VGA Card First]
Allows you to select which graphics controller to use as the primary boot device.
Configuration options: [PCI VGA Card First] [Internal VGA First] [PCIE VGA Card First]
PCIE training [Gen2 if supported]
Configuration options: [Only Gen1] [Gen2 if supported]
2.5.3
Onboard Devices Configuration
Onboard LAN [Auto]
Allows you to enable or disable the onboard LAN.
Configuration options: [Auto] [Disabled]
Onboard LAN Boot ROM [Disabled]
Allows you to enable or disable the onboard LAN Boot ROM.
Configuration options: [Disabled] [Enabled]
HD Audio Device [Internal codec + External codec]
Allows you to configure the HD Audio controller.
Configuration options: [Disabled] [Internal codec + External codec] [Internal codec]
[External codec]
Front Panel Select [HD Audio]
Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or highdefinition audio depending on the audio standard that the front panel audio module supports.
Configuration options: [AC97] [HD Audio]
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4][2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]
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ASUS M4N78 PRO
2.5.4
PCIPnP
The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices.
Plug And Play O/S [No]
When set to [Yes] and if you install a Plug and Play operating system, the operating
system configures the Plug and Play devices not required for boot. When set to [No], BIOS
configures all the devices in the system.
2.5.5
USB Configuration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the configuration options.
The Module Version and USB Devices Enabled items show the auto-detected values. If
no USB device is detected, the item shows None.
USB Functions [Enabled]
Allows you to enable or disable the USB Functions.
Configuration options: [Enabled] [Disabled]
USB 2.0 Controller [Enabled]
Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Enabled] [Disabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for USB devices on legacy operating systems
(OS). Setting to Auto allows the system to detect the presence of USB devices at startup.
If detected, the USB controller legacy mode is enabled. If no USB device is detected, the
legacy USB support is disabled.
Configuration options: [Disabled] [Enabled] [Auto]
USB 2.0 Controller Mode [HiSpeed]
Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or Full Speed (12
Mbps). Configuration options: [FullSpeed] [HiSpeed]
USB Mass Storage Device Configuration
The USB Mass Storage Device Configuration item appears only when there are installed
USB devices.
USB Mass Storage Reset Delay [20 Sec]
Allows you to select the number of seconds POST waits for the USB mass storage
device after the start unit command. The message “No USB mass storage device
detected” appears if none is installed in the system.
Configuration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]
Emulation Type [Auto]
If set to [Auto], USB devices of less than 530MB will be emulated as Floppy, and the remaing
drives as hard drives. The [Force FDD] option can be used to force a HDD formatted drive to
boot as FDD, ex. ZIP drive.
Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CDROM]
Chapter 2: BIOS setup
2-21
2.6
Power menu
The Power menu items allow you to change the settings for the Advanced Configuration and
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then
press <Enter> to display the configuration options.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
Suspend Mode
ACPI 2.0 Support
ACPI APIC support
[Auto]
[Disabled]
[Enabled]
Select the ACPI state
used for System
Suspend.
APM Configuration
Hardware Monitor
2.6.1
Suspend Mode [Auto]
2.6.2
ACPI 2.0 Support [Disabled]
2.6.3
ACPI APIC Support [Enabled]
2.6.4
APM Configuration
Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used
for system suspend. Configuration options: [S1 (POS) Only] [S3 Only] [Auto]
Allows you to add more tables for Advanced Configuration and Power Interface (ACPI) 2.0
specifications. Configuration options: [Disabled] [Enabled]
Allows you to enable or disable the Advanced Configuration and Power Interface (ACPI)
support in the Application-Specific Integrated Circuit (ASIC). When set to Enabled, the ACPI
APIC table pointer is included in the RSDT pointer list.
Configuration options: [Disabled] [Enabled]
Restore on AC Power Loss [Power Off]
When set to Power Off, the system goes into off state after an AC power loss. When set to
Power On, the system goes on after an AC power loss.
Configuration options: [Power On] [Power Off] [Last State]
Power On By PME [Disabled]
Allows you to enable or disable the PME to wake up from S5 by PCI devices.
Configuration options: [Disabled] [Enabled]
Power On By Ring [Disabled]
Enable or disable RI to generate a wake event. Configuration options: [Disabled] [Enabled]
Power On By PS/2 Keyboard [Disabled]
Allows you to disable the Power On by PS/2 keyboard function or set specific keys on
the PS/2 keyboard to turn on the system. This feature requires an ATX power supply that
provides at least 1A on the +5VSB lead.
Configuration options: [Disabled] [Space Bar] [Power Key] [Ctrl-Esc]
Power On By PS/2 Mouse [Disabled]
Allows you to enable or disable the Power On by PS/2 mouse function.
Configuration options: [Disabled] [Enabled]
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ASUS M4N78 PRO
Power On By RTC Alarm [Disabled]
Allows you to enable or disable RTC to generate a wake event. When this item is set to
[Enabled], the items RTC Alarm Date and RTC Alarm Time appear with set values.
Configuration options: [Disabled] [Enabled]
2.6.5
Hardware Monitor
CPU/MB Temperature [xxxºC/xxxºF]
The onboard hardware monitor automatically detects and displays the motherboard and CPU
temperatures. Select [Ignored] if you do not wish to display the detected temperatures.
CPU Fan / Chassis Fan / Power Fan Speed [xxxxRPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the CPU, chassis,
and power fan speed in rotations per minute (RPM). If the fan is not connected to the
motherboard, the field shows N/A. Select [Ignored] if you do not wish to display the detected
speed.
VCORE / 3.3V / 5V / 12V Voltage [x.xxxV]
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators. Select Ignored if you do not wish to display the detected voltage output.
CPU Q-Fan Function [Disabled]
Allows you to enable or disable the CPU Q-Fan feature that smartly adjusts the fan speeds
for more efficient system operation. Configuration options: [Disabled] [Enabled]
Select Fan Type: [PWM Fan]
This item appears only when you set the CPU Q-Fan Function item to [Enabled] and allows
you to select the CPU fan type you installed on the motherboard.
Configuration options: [PWM Fan] [DC Fan]
• If you install a PWM (4-pin) fan but set this item to [DC Fan], the fan you installed may
not work.
• If you install a DC (3-pin) fan but set this item to [PWM Fan], the CPU Q-Fan function
will not work, and the fan you install will always run at full speed.
CPU Q-Fan Mode [Silent]
Allows you to set the appropriate performance level of the CPU Q-Fan. When set to
[Optimal], the CPU fan automatically adjusts depending on the CPU temperature. Set this
item to [Silent] to minimize fan speed for quiet CPU fan operation, or [Performance] to
achieve the maximum CPU fan speed. Configuration options: [Performance] [Optimal] [Silent]
Chassis Q-Fan Function [Disabled]
Allows you to enable or disable the chassis Q-Fan feature that smartly adjusts the fan speeds
for more efficient system operation. Configuration options: [Disabled] [Enabled]
Chassis Q-Fan Mode [Silent]
Allows you to set the appropriate performance level of the Chassis Q-Fan. When set to
[Optimal], the Chassis fan automatically adjusts depending on the Chassis temperature. Set
this item to [Silent] to minimize fan speed for quiet Chassis fan operation, or [Performance] to
achieve the maximum Chassis fan speed.
Configuration options: [Performance] [Optimal] [Silent]
Chapter 2: BIOS setup
2-23
2.7
Boot menu
The Boot menu items allow you to change the system boot options. Select an item then
press <Enter> to display the submenu.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
Boot Settings
Boot Device Priority
Boot Settings Configuration
Security
Specifies the Boot
Device Priority
sequence.
A virtual floppy disk
drive (Floppy Drive B:
) may appear when you
set the CD-ROM drive
as the first boot
device.
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2.7.1
Boot Device Priority
1st ~ xxth Boot Device
These items specify the boot device priority sequence from the available devices. The
number of device items that appears on the screen depends on the number of devices
installed in the system.
Configuration options: [1st FLOPPY DRIVE] [Hard Drive] [ATAPI CD-ROM] [Disabled]
2.7.2
Boot Settings Configuration
Quick Boot [Enabled]
Enabling this item allows the BIOS to skip some power on self tests (POST) while booting to
decrease the time needed to boot the system. When set to [Disabled], BIOS performs all the
POST items.
Configuration options: [Disabled] [Enabled]
Full Screen Logo [Enabled]
This allows you to enable or disable the full screen logo display feature.
Configuration options: [Disabled] [Enabled]
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.
AddOn ROM Display Mode [Force BIOS]
Sets the display mode for option ROM.
Configuration options: [Force BIOS] [Keep Current]
Bootup Num-Lock [On]
Allows you to select the power-on state for the NumLock.
Configuration options: [Off] [On]
Wait for ‘F1’ If Error [Enabled]
When set to [Enabled], the system waits for the F1 key to be pressed when error occurs.
Configuration options: [Disabled] [Enabled]
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ASUS M4N78 PRO
Hit ‘DEL’ Message Display [Enabled]
When set to [Enabled], the system displays the message Press DEL to run Setup during
POST.
Configuration options: [Disabled] [Enabled]
2.7.3
Security
The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the configuration options.
Change Supervisor Password
Select this item to set or change the supervisor password. The Supervisor Password item on
top of the screen shows the default Not Installed. After you set a password, this item shows
Installed.
To set a Supervisor Password
1.
Select the Change Supervisor Password item and press <Enter>.
2.
From the password box, type a password composed of at least six letters and/or
numbers, then press <Enter>.
3.
Confirm the password when prompted.
The message “Password Installed” appears after you successfully set your password.
To change the supervisor password, follow the same steps as in setting a supervisor
password.
To clear the supervisor password, select the Change Supervisor Password then press
<Enter>. The message “Password Uninstalled” appears.
If you forget your BIOS password, you can clear it by erasing the CMOS Real Time Clock
(RTC) RAM. See section 1.9 Jumpers for information on how to erase the RTC RAM.
After you have set a supervisor password, the other items appear to allow you to change
other security settings.
User Access Level [Full Access]
This item allows you to select the access restriction to the Setup items.
Configuration options: [No Access] [View Only] [Limited] [Full Access]
No Access prevents user access to the Setup utility.
View Only allows access but does not allow change to any field.
Limited allows changes only to selected fields, such as Date and Time.
Full Access allows viewing and changing all the fields in the Setup utility.
Change User Password
Select this item to set or change the user password. The User Password item on top of the
screen shows the default Not Installed. After you set a password, this item shows Installed.
To set a User Password:
1.
Select the Change User Password item and press <Enter>.
2.
On the password box that appears, type a password composed of at least six letters
and/or numbers, then press <Enter>.
Chapter 2: BIOS setup
2-25
3.
Confirm the password when prompted.
The message “Password Installed” appears after you set your password successfully.
To change the user password, follow the same steps as in setting a user password.
Clear User Password
Select this item to clear the user password.
Password Check [Setup]
When set to [Setup], BIOS checks for user password when accessing the Setup utility. When
set to [Always], BIOS checks for user password both when accessing Setup and booting the
system.
Configuration options: [Setup] [Always]
2.8
Tools menu
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
ASUS EZ Flash 2
Express Gate
Enter OS Timer
Reset User Data
[Enabled]
[10 Seconds]
[No]
ASUS O.C. Profile
AI NET 2
Press ENTER to run
the utility to select
and update BIOS.
This utility supports
1.FAT 12/16/32 (r/w)
2.NTFS (read only)
3.CD-DISC (read only)
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
2.8.1
ASUS EZ Flash 2
2.8.2
Express Gate [Enabled]
Allows you to run ASUS EZ Flash 2. When you press <OK>, a confirmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <OK> to
confirm your choice.
Allows you to enable or disable the ASUS Express Gate feature. The ASUS Express Gate
feature is a unique instant-on environment that provides quick access to the Internet browser
and Skype.
Configuration options: [Enabled] [Disabled]
Enter OS Timer [10 Seconds]
Sets countdown duration that the system waits at the Express Gate’s first screen before
starting Windows or other installed OS. Choose [Prompt User] to stay at the first screen of
Express Gate for user action.
Configuration options: [Prompt User] [1 second] [3 seconds] [5 seconds]
[10 seconds] [15 seconds] [20 seconds] [30 seconds]
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ASUS M4N78 PRO
Reset User Data [No]
Allows you to clear Express Gate’s user data.
Configuration options: [No] [Reset]
When setting this item to [Reset], make sure to save the setting to the BIOS so that the
user data will be cleared the next time you enter the Express Gate. User data includes the
Express Gate’s settings as well as any personal information stored by the web browser
(bookmarks, cookies, browsing history, etc.). This is useful in the rare case where corrupt
settings prevent the Express Gate environment from launching properly.
The first time wizard will run again when you enter the Express Gate environment after
clearing its settings.
2.8.3
ASUS O.C. Profile
This item allows you to store or load multiple BIOS settings.
Add Your CMOS Profile.
Allows you to save the current BIOS file to the BIOS Flash. In the Name sub-item, type your
profile name and press <Enter>, and then choose a profile number to save your CMOS
settings in the Save To sub-item. You can save eight (8) CMOS profiles.
Load CMOS Profile.
Allows you to load the previous BIOS settings saved in the BIOS Flash. Press <Enter>, and
choose a profile to load.
Start O.C. Profile
Allows you to run the utility to save and load CMOS. Press <Enter> to run the utility.
• This function can support devices such as a USB flash disk or a floppy disk with FAT
32/16 format and single partition only.
• DO NOT shut down or reset the system while updating the BIOS to prevent the system
boot failure!
• Suggest only to update the BIOS file coming from the same memory/CPU configuration
and BIOS version.
• Only the “xxx.CMO” file can be loaded.
2.8.4
AI NET 2
Check Marvell Phy LAN cable [Disabled]
Enables or disables checking of the Marvell LAN cable during the Power-On Self‑Test
(POST).
Configuration options: [Disabled] [Enabled]
Chapter 2: BIOS setup
2-27
2.9
Exit menu
The Exit menu items allow you to load the optimal or failsafe default values for the BIOS
items, and save or discard your changes to the BIOS items.
BIOS SETUP UTILITY
Main Ai Tweaker Advanced Power Boot Tools Exit
Exit Options
Exit & Save Changes
Exit & Discard Changes
Discard Changes
Load Setup Defaults
Exit system setup
after saving the
changes.
F10 key can be used
for this operation.
←→ Select Screen
↑↓ Select Item
Enter Go to Sub Screen
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2009, American Megatrends, Inc.
Pressing <Esc> does not immediately exit this menu. Select one of the options from this
menu or <F10> from the legend bar to exit.
Exit & Save Changes
Once you are finished making your selections, choose this option from the Exit menu to
ensure the values you selected are saved to the CMOS RAM. An onboard backup battery
sustains the CMOS RAM so it stays on even when the PC is turned off. When you select this
option, a confirmation window appears. Select OK to save changes and exit.
If you attempt to exit the Setup program without saving your changes, the program prompts
you with a message asking if you want to save your changes before exiting. Press <Enter>
to save the changes while exiting.
Exit & Discard Changes
Select this option only if you do not want to save the changes that you made to the
Setup program. If you made changes to fields other than System Date, System Time, and
Password, the BIOS asks for a confirmation before exiting.
Discard Changes
This option allows you to discard the selections you made and restore the previously saved
values. After selecting this option, a confirmation appears. Select OK to discard any changes
and load the previously saved values.
Load Setup Defaults
This option allows you to load the default values for each of the parameters on the Setup
menus. When you select this option or if you press <F5>, a confirmation window appears.
Select OK to load default values. Select Exit & Save Changes or make other changes
before saving the values to the non-volatile RAM.
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ASUS M4N78 PRO