Page 1
M4N78-AM V2
Motherboard
Page 2
E4778
First Edition V1
May 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, modied or altered, unless
such repair, modication 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 identication or explanation and to the
owners’ benet, without intent to infringe.
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Contents
Notices .......................................................................................................... v
Safety information ...................................................................................... vi
About this guide ......................................................................................... vi
M4N78-AM V2 specications summary .................................................. viii
Chapter 1: Product introduction
1.1 Before you proceed ..................................................................... 1-1
1.2 Motherboard overview ................................................................. 1-2
1.2.1 Motherboard layout ......................................................... 1-2
1.2.2 Layout contents ............................................................... 1-2
1.3 Central Processing Unit (CPU) ................................................... 1-3
1.4 System memory ........................................................................... 1-3
1.4.1 Overview ......................................................................... 1-3
1.4.2 Memory congurations .................................................... 1-3
1.5 Expansion slots ............................................................................ 1-6
1.5.1 PCI slots .......................................................................... 1-6
1.5.2 PCI Express x1 slot ......................................................... 1-6
1.5.3 PCI Express x16 slot ....................................................... 1-6
1.6 Jumpers ........................................................................................ 1-7
1.7 Connectors ................................................................................... 1-8
1.7.1 Rear panel ports ............................................................. 1-8
1.7.2 Internal connectors ......................................................... 1-9
1.8 Software support ........................................................................ 1-15
1.8.1 Installing an operating system ...................................... 1-15
1.8.2 Support DVD information .............................................. 1-15
Chapter 2: BIOS information
2.1 Managing and updating your BIOS ............................................ 2-1
2.1.1 ASUS Update utility ........................................................ 2-1
2.1.2 ASUS EZ Flash 2 utility ................................................... 2-2
2.1.3 ASUS CrashFree BIOS 3 utility ...................................... 2-3
2.2 BIOS setup program .................................................................... 2-4
2.3 Main menu .................................................................................... 2-4
2.3.1 System Time ................................................................... 2-4
2.3.2 System Date ................................................................... 2-4
2.3.3 Primary IDE Master/Slave, SATA 1/2/3/4 ........................ 2-5
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Contents
2.3.4 Storage Conguration ..................................................... 2-6
2.3.5 System Information ......................................................... 2-6
2.4 Advanced menu ........................................................................... 2-6
2.4.1 JumperFree Conguration .............................................. 2-7
2.4.2 CPU Conguration .......................................................... 2-9
2.4.3 Chipset .......................................................................... 2-10
2.4.4 Onboard Devices Conguration .....................................2-11
2.4.5 PCI PnP .........................................................................2-11
2.4.6 USB Conguration ........................................................ 2-12
2.5 Power menu ................................................................................ 2-12
2.5.1 Suspend Mode .............................................................. 2-13
2.5.2 ACPI 2.0 Support ......................................................... 2-13
2.5.3 ACPI APIC Support ....................................................... 2-13
2.5.4 APM Conguration ........................................................ 2-13
2.5.5 Hardware Monitor ......................................................... 2-14
2.6 Boot menu .................................................................................. 2-14
2.6.1 Boot Device Priority ...................................................... 2-14
2.6.2 Boot Settings Conguration .......................................... 2-14
2.6.3 Security ......................................................................... 2-15
2.7 Tools menu ................................................................................. 2-16
2.7.1 ASUS EZ Flash 2 .......................................................... 2-16
2.7.2 AI NET 2........................................................................ 2-16
2.8 Exit menu .................................................................................... 2-16
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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 modications 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.
REACH
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://green.asus.com/english/REACH.htm.
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.
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Safety information
Electrical safety
• To prevent electric shock hazard, disconnect the power cable from the electric 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 x it by yourself. Contact a qualied 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 at and stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports.
• Chapter 2: BIOS information
This chapter tells how to change system settings through the BIOS setup menus.
Detailed descriptions of the BIOS parameters are also provided.
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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 toInformation to prevent injury to yourself when trying to
complete a task.
CAUTION: Information to prevent damage to the components when trying toInformation 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.Tips and additional information to help you complete a task.
Where to nd 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.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
Typography
Bol d te xt 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>
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M4N78-AM V2 specications summary
CPU AMD® Phenom™ II / Athlon™ II / Phenom™ / Athlon™ /
Chipset NVIDIA® GeForce® 8200 (MCP78S)
System bus Up to 5200 MT/s HyperTransport™ 3.0 interface for
Memory Dual-channel memory architecture
Graphics Integrated NVIDIA® GeForce® 8 Series GPU
Expansion slots 1 x PCIe x16 slot
Storage 1 x Ultra DMA 133/100/66 connector
Audio VIA VT1708S High Denition Audio 6-channel CODEC
Sempron™ Family processors (AM3 / AM2+ / AM2)
AMD Cool ‘n’ Quiet™ Technology
Supports CPU up to 95W
Refer to www.asus.com for the AMD CPU support list
AM3 / AM2+ CPU
2000 / 1600 MT/s for AM2 CPU
2 x 240-pin DIMM slots support unbuffered ECC and
non-ECC DDR2 1066/800/667MHz memory modules
Supports up to 8GB system memory
* DDR2 1066 is supported by AM3 / AM2+ CPU only.
** Refer to www.asus.com for the latest Memory QVL
(Qualied Vendors List).
*** When you install a total memory of 4GB or more,When you install a total memory of 4GB or more,
WindowsWindows® 32-bit operating system may only recognize
less than 3GB. We recommend a maximum of 3GB
system memory if you are using a Windows® 32-bit
operating system.
Maximum shared memory of 512MB
Supports D-Sub with max. resolution up to 1920 x 1440
Supports Microsoft® DirectX 10
Supports PCIe 2.0/1.0 architecture
Supports NVIDIA® Hybrid SLI® Technology (for Windows®
Vista only)
* Refer to www.asus.com for details on how to use
Hybrid SLI®.
1 x PCIe x1 slot
2 x PCI slots
4 x Serial ATA 3Gb/s connectors
NVIDIA® MediaShield™ RAID supports RAID 0, RAID 1,
RAID 0+1, RAID 5, and JBOD congurations
Supports Multi-streaming and Anti Pop Function
viii
(continued on the next page)
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M4N78-AM V2 specications summary
USB Supports up to 10 USB 2.0/1.1 ports (6 ports at mid-board,
LAN Broadcom B5071 PHY Gigabit LAN
ASUS special features ASUS Turbo Key
ASUS overclocking
features
Back panel I/O ports 1 x PS/2 Keyboard port
Internal I/O connectors 3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.1
BIOS 8Mb Flash ROM, AMI BIOS, PnP, DMI v2.0, WfM2.0,
Accessories 2 x Serial ATA cables
Form Factor MicroATX form factor: 9.6 in x 8.0 in (24.4 cm x 20.3 cm)
Support DVD Drivers
4 ports at the back panel)
ASUS Q-Fan
ASUS CrashFree BIOS3
ASUS EZ Flash2
ASUS AI NET2
ASUS MyLogo2
SFS (Stepless Frequency Selection):
- Memory tuning from 533MHz to 1066MHz
- PCIe frequency tuning from 100MHz to 200MHz at
1MHz increment
ASUS C.P.R. (CPU Parameter Recall)
1 x PS/2 Mouse port
1 x RJ45 port
1 x VGA port
4 x USB 2.0/1.1 ports
6-channel audio I/O ports
1 x COM port
1 x LPT port
ports
1 x IDE connector
4 x SATA connectors
1 x system panel connector
1 x CD audio-in connector
1 x Internal speaker connector
1 x Front panel audio connector
1 x CPU fan connector
1 x S/PDIF_OUT connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V power connector
ACPI v2.0a, SM BIOS v2.5
1 x Ultra DMA 133/100/66 cable
1 x I/O shield
1 x User Manual
ASUS Update
ASUS PC Probe II
Anti-Virus software (OEM version)
*Specications are subject to change without notice.
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Chapter 1
Standby Power
Product introduction
Thank you for buying an ASUS® M4N78-AM V2 motherboard!
Before you start installing the motherboard, and hardware devices on it, check the items in
your motherboard package. Refer to page ix for the list of accessories.
If any of the items is damaged or missing, contact your retailer.
1.1 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
This 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 must 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 introduction1-1
Page 11
1.2 Motherboard overview
COM1
B5071A
2KFBG
SOCKET AM2+
NVIDIA
®
GeForce 8200
VIA
VT1708S
USBPW1-4
USBPW5-10
1.2.1 Motherboard layout
Ensure that you install the motherboard into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis.
Place this side towards
the rear of the chassis.
Place six 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.
1.2.2 Layout contents
Connectors/Jumpers/Slots/LED Page Connectors/Jumpers/Slots/LED Page
1. USB device wake-up (3-pin USBPW1-4, USBPW5-10) 1-7 9. Serial ATA connectors (7-pin SATA1/2/3/4) 1-10
2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-13 10. USB connectors (10-1 pin USB56, USB78,
3. AM2+ CPU Socket 1-3 11. Standby power LED (SB_PWR) 1-1
USB910)
1-12
4. CPU fan connector (4-pin CPU_FAN) 1-12 12. System panel connector (10-1 pin F_PANEL) 1-13
5. DDR2 DIMM slots 1-3 13. Optical drive audio in connector (4-pin CD) 1-11
6. IDE connector (40-1 pin PRI_IDE) 1-11 14. Front panel audio connector (10-1 pin AAFP) 1-10
7. Internal speaker connector (4-pin SPEAKER) 1-9 15. Digital audio connector (4-1 pin SPDIF_OUT) 1-14
8. Clear RTC RAM (3-pin CLRTC) 1-7 16. Keyboard power (3-pin KBPWR) 1-8
1-2ASUS M4N78-AM V2
Page 12
1.3 Central Processing Unit (CPU)
This motherboard supports AMD® Phenom™ II / Athlon™ II / Phenom™ / Athlon™ /
Sempron™ Family processors.
The AM2+ socket has a different pinout from the 940-pin socket designed for the
AMD Opteron™ processor. Use a CPU that is designed for the AM2+ socket.
1.4 System memory
1.4.1 Overview
This motherboard comes with two Double Data Rate 2 (DDR2) Dual Inline Memory Modules
(DIMM) sockets. A DDR2 DIMM 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 gure illustrates the location of the DDR2 DIMM sockets:
Channel Sockets
Channel A DIMM_A1
Channel B DIMM_B1
1.4.2 Memory congurations
You may install 512MB, 1GB, 2GB, and 4GB unbuffered ECC and non-ECC DDR2 DIMMs
into the DIMM sockets.
The motherboard supports up to 8GB memory modules on Windows® XP Professional x64
and Vista x64 editions. You may install a maximum of 4GB DIMMs on each slot.
• 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 conguration. 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.
Chapter 1: Product introduction1-3
Page 13
• 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 do any of the
following:
- Install a maximum of 3GB system memory if you are using a 32-bit WindowsInstall a maximum of 3GB system memory if you are using a 32-bit Windows
OS.
- Use a 64-bit WindowsWindows® OS if you want to install 4GB or more memory on the
motherboard.
• This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or less.
M4N78-AM V2 Motherboard Qualied Vendors Lists (QVL)
DDR2-1066MHz capability
Chip
Vendor Part No. Size SS/DS Chip No. CL
Apacer 78.AAGAL.9KZ 4G(kit of 2) DS Heat-Sink Package 5-5-5-15 N/A •
Corsair CM2X1024-8500C5 1G DS Heat-Sink Package N/A Corsair • •
crucial BL12864AA1065.8FE5 2G(kit of 2) SS Heat-Sink Package N/A N/A • •
G.SKILL F2-8500CL5D-2GBPK 2G(kit of 2) DS Heat-Sink Package 5-5-5-15 N/A •
G.SKILL F2-8500CL5D-4GBPK 4G(kit of 2) DS Heat-Sink Package 5-5-5-15 N/A •
G.SKILL F2-8500CL5S-1GBPK 1G DS Heat-Sink Package 5-5-5-15 G.SKILL •
GEIL GB22GB8500C5DC 1G SS GL2L128M88BA25AB 5 GEIL •
GEIL GE24GB1066C5DC 2G DS Heat-Sink Package 5 GEIL •
GEIL GX24GB8500C5UDC 4G(kit of 2) DS Heat-Sink Package 5 N/A • •
Kingmax KLED48F-A8K15 1G DS KKA8FFIXF-JFS-18A N/A Kingmax • •
Kingston KHX8500D2/ 512 512MB SS Heat-Sink Package N/A Kingston • •
Kingston KHX8500D2K2/1GN 512MB SS Heat-Sink Package N/A Kingston • •
Kingston KVR1066D2N7/ 512 512MB SS E5108AJBG-1J-E N/A Elpida • •
Kingston KHX8500D2/1G 1G DS Heat-Sink Package N/A Kingston •
Kingston KHX8500D2K2/2GN 1G DS Heat-Sink Package N/A Kingston • •
Kingston KVR1066D2N7/1G 1G DS E5108AJBG-1J-E N/A Elpida •
OCZ OCZ2N1066SR2DK 2G(kit of 2) DS Heat-Sink Package(EPP) 5-5-5-15 OCZ •
Qimonda HYS64T128020EU-19F-C 1G DS HYB18T 512800CF19FFSS24313 6 Qimonda • •
Transcend TX1066QLU-2GK 2G(kit of 2) SS Heat-Sink Package 5 Transced • •
Transcend TX1066QLJ-2GK 1G DS Heat-Sink Package 5 Transced • •
Transcend TX1066QLU-4GK 4G(kit of 2) DS Heat-Sink Package 5 Transced • •
Brand
support
A* B*
®
DIMM
• Due to AM3 / AM2+ CPU limitation, only one DDR2 1066 is supported per channel.
• The default DIMM frequency depends on its Serial Presence Detect (SPD), which is the
standard way of accessing information from a memory module. Under the default state,
some memory modules for overclocking may operate at a lower frequency than the
vendor-marked value.
DDR2-800MHz capability
Vendor Part No. Size
A-Data AD2800E001GOU 2G(kit of 2) SS Heat-Sink Package 4-4-4-13 N/A • •
A-Data M2OAD6G3H3160Q1E58 512MB SS AD29608A8A-25EG80812 N/A ADATA • •
A-Data AD2800E002GOU 4G(kit of 2) DS Heat-Sink Package 4-4-4-12 N/A • •
A-Data M2OAD6G314170Q1E58 1G DS AD29608A8A-25EG80810 N/A ADATA • •
Apacer 78.01GA0.9K5 1G SS AM4B5808CQJS8E0749D 5 Apacer • •
Apacer 78.91G91.9K5 512MB SS AM4B5708JQJS8E0751C 5 Apacer • •
Apacer 78.A1GA0.9K4 2G DS AM4B5808CQJS8E0740E 5 Apacer • •
Apacer 78.A1GA0.9K4 2G DS AM4B5808CQJS8E0747D 5 Apacer • •
Corsair CM2X2048-6400C5DHX 4G(Kit of 2) DS Heat-Sink Package 5 Corsair • •
Corsair CM2X2048-6400C5 4G(Kit of 2) DS Heat-Sink Package 5 Corsair • •
Corsair XMS2-6400 1G DS Heat-Sink Package 4 Corsair • •
Corsair XMS2-6400 1G DS Heat-Sink Package 5 Corsair • •
Crucial BL12864AA804.8FE5
2G(Kit of
2)(EPP)
SS/
Chip No. CL Chip Brand
DS
SS Heat-Sink Package N/A N/A • •
(continued on the next page)
DIMM
support
A* B*
1-4ASUS M4N78-AM V2
Page 14
DDR2-800MHz capability
Vendor Part No. Size
Crucial BL12864AL804.8FE5
Elixir
Elixir M2Y1G64TU8HB0B-25C 1G DS N2TU 51280BE-25C802006Z1DV 5 Elixir • •
Elixir
G.SKILL F2-6400CL5D-1GBNQ 1G(Kit of 2) SS Heat-Sink Package 5-5-5-15 G.SKILL • •
G.SKILL F2-6400CL4D-2GBHK 1G DS Heat-Sink Package 4 G.SKILL • •
G.SKILL F2-6400CL4D-2GBPK 1G DS Heat-Sink Package 4 G.SKILL • •
G.SKILL F2-6400CL4D-4GBPK 2G DS Heat-Sink Package 4 G.SKILL • •
G.SKILL F2-6400CL5D-2GBNQ 1G DS Heat-Sink Package 5 G.SKILL • •
G.SKILL F2-6400CL5D-4GBPQ 2G DS Heat-Sink Package 5 G.SKILL • •
G.SKILL F2-6400CL5Q-16GNQ 4G DS Heat-Sink Package 5 G.SKILL • •
GEIL GB22GB6400C4DC 1G DS GL2L64M088BA30EB 4 GEIL • •
GEIL GB22GB6400C5DC 1G DS GL2L64M088BA30EB 5 GEIL • •
GEIL GB24GB6400C4DC 2G DS GL2L128M88BA25AB 4 GEIL • •
GEIL GB24GB6400C4QC 1G DS GL2L64M088BA30EB 4 GEIL • •
GEIL GB24GB6400C5DC 2G DS GL2L128M88BA25AB 5 GEIL • •
GEIL GB24GB6400C5QC 1G DS GL2L64M088BA30EB 5 GEIL • •
GEIL GB28GB6400C4QC 2G DS GL2L128M88BA25AB 4 GEIL • •
GEIL GB28GB6400C5QC 2G DS GL2L128M88BA25AB 5 GEIL • •
GEIL GE22GB800C4DC 1G DS Heat-Sink Package 4 GEIL • •
GEIL GE22GB800C5DC 1G DS Heat-Sink Package 5 GEIL • •
GEIL GE24GB800C4DC 2G DS Heat-Sink Package 4 GEIL • •
GEIL GE24GB800C4QC 1G DS Heat-Sink Package 4 GEIL • •
GEIL GE24GB800C5DC 2G DS Heat-Sink Package 5 GEIL • •
GEIL GE24GB800C5QC 1G DS Heat-Sink Package 5 GEIL • •
GEIL GE28GB800C4QC 2G DS Heat-Sink Package 4 GEIL • •
GEIL GE28GB800C5QC 2G DS Heat-Sink Package 5 GEIL • •
GEIL GX22GB6400CUSC 2G DS Heat-Sink Package 4 GEIL • •
GEIL GX22GB6400DC 1G DS Heat-Sink Package 5 GEIL • •
GEIL GX22GB6400LX 2G DS Heat-Sink Package 5 GEIL • •
GEIL GX22GB6400UDC 1G DS Heat-Sink Package 4 GEIL • •
GEIL GX24GB6400DC 2G DS Heat-Sink Package 5 GEIL • •
HY HYMP564U64CP8-S5 AB 512MB SS HY5PS12821CFP-S5 5 Hynix • •
HY HYMP 512U64CP8-S5 AB 1G DS HY5PS12821CFPS5 5 Hynix • •
Kingmax KLDC28F-A8KI5 512MB SS KKA8FF1XF-JFS-25A N/A Kingmax • •
Kingmax KLDD48F-B8KB5 1G SS KKB8FFBGXF-CFA-25U N/A Kingmax • •
Kingmax KLDE88F-B8KB5 2G DS KKB8FFBGXF-CFA-25U N/A Kingmax • •
Kingston KHX6400D2LLK2/1GN 512MB SS Heat-Sink Package N/A Kingston • •
Kingston KVR800D2N5/ 512 512MB SS E5108AJBG-8E-E 0803A9082 N/A Kingston • •
Kingston KVR800D2N6/ 512 512MB SS E5108AJBG-8E-E N/A Elpida • •
Kingston KHX6400D2/2G 2G DS Heat-Sink Package N/A Kingston • •
Kingston KHX6400D2LL/1G 1G DS Heat-Sink Package N/A Kingston • •
kingston KVR800D2N5/1G 1G DS D6408TR4CGL25USL362406PECXA N/A kingston • •
Kingston KVR800D2N5/2G 2G DS E1108ACBG-8E-E N/A Elpida • •
Kingston KVR800D2N6/1G 1G DS E5108AJBG-8E-E N/A Elpida • •
Kingston KVR800D2N6/2G 2G DS 461625.010819 PTGC N/A Kingston • •
Kingston KVR800D2N6/4G 4G DS E2108ABSE-8G-E N/A Elpida • •
Micron MT9HTF12872AY-800E1 1G SS D9HNP 7YE22(ECC) 6 Micron • •
Micron MT9HTF6472AY-80ED4 512MB SS 6ED22D9GKX(ECC) 5 Micron • •
Micron MT18HTF12872AY-80ED4 1G DS 6TD22D9GKX(ECC) 5 Micron • •
OCZ OCZ2G800R22GK 1G DS Heat-Sink Package 5 OCZ • •
OCZ OCZ2P8004GK 2G DS Heat-Sink Package 5 OCZ • •
OCZ OCZ2P800R22GK 1G DS Heat-Sink Package 4 OCZ • •
OCZ OCZ2RPR8002GK 1G DS Heat-Sink Package 4 OCZ • •
OCZ OCZ2VU8004GK 1G DS Heat-Sink Package 6 OCZ • •
PSC AL7E8F73C-8E1 1G SS A3R1GE3CFF734MAA0E 5 PSC • •
PSC AL7E8E63H-10E1K 2G DS A3R1GE3CFF750RABBP(ECC) 5 PSC • •
PSC AL8E8F73C-8E1 2G DS A3R1GE3CFF734MAA0E 5 PSC • •
PSC PL8E8F73C-8E1 2G DS SHG772-AA3G N/A psc • •
PSC PL8E8G73E-8E1 2G DS XCP271A3G-A N/A psc • •
Qimonda HYS64T64000EU-2.5-B2 512MB SS HYB18T 512800B2F25FSS28380 6 Qimonda • •
Qimonda HYS64T128020EU-2.5-B2 1G DS HYB18T 512800B2F25FSS28380 6 Qimonda • •
Samsung M378T2863QZS-CF7 1G SS K4T1G084QQ-HCF7 6 Samsung • •
Samsung M378T6553GZS-CF7 512MB SS K4T51083QG-HCF7 6 Samsung • •
Samsung M391T2863QZ3-CF7 1G SS K4T1G084QQ-HCF7(ECC) 6 Samsung • •
Samsung M37875663QZ3-CF7 2G DS K4T1G084QQ-HCF7 6 Samsung • •
Samsung M378T2953GZ3-CF7 1G DS K4T51083QG-HCF7 6 Samsung • •
Samsung M378T5263AZ3-CF7 4G DS K4T2G084QA-HCF7 N/A Samsung • •
Super Talent T800UB1GC4 1G DS Heat-Sink Package 4 Super Talent • •
Transcend JM800QLU-1G 1G SS TQ1243PCF8 5 Transcend • •
Transcend TS128MLQ64V8U 1G SS E1108ACBG-8E-E 5 Elpaid • •
Transcend TS64MLQ64V8J 512MB SS 7HD22 D9GMH 5 Micron • •
Transcend JM800QLJ-1G 1G DS TQ123PJF8F0801 5 Transcend • •
Transcend JM800QLU-2G 2G DS TQ243PCF8 5 Transcend • •
Transcend TS128MLQ64V8J 1G DS 7HD22D9GMH 5 Mircon • •
Transcend TS256MLQ64V8U 2G DS E1108ACBG-8E-E 5 Elpida • •
VDATA M2GVD6G3H3160Q1E52 512MB SS VD29608A8A-25EG20813 N/A VDATA • •
VDATA M2GVD6G314170Q1E58 1G DS VD29608A8A-25EG80813 N/A VDATA • •
M2Y1G64TU88D5B-AC
0828.GS
M2Y2G64TU8HD5B-AC
0826.SG
2G(Kit of
2)(EPP)
1G SS N2TU16800E-AC N/A Elixir • •
2G DS N2TUG80DE-AC N/A Elixir • •
SS/
Chip No. CL Chip Brand
DS
SS Heat-Sink Package 4 N/A • •
Chapter 1: Product introduction1-5
DIMM
support
A* B*
Page 15
DDR2-667MHz capability
Vendor Part No. Size
ADATA M2OAD5G314170Q1C58 1G DS AD29608A8A-3EG80814 N/A ADATA • •
ADATA M2OAD5H3J4170I1C53 2G DS AD20908A8A-3EG 30724 N/A ADATA • •
Apacer 78.01G9O.9K5 1G SS AM4B5808CQJS7E0751C 5 Apacer • •
Apacer 78.A1G9O.9K4 2G DS AM4B5808CQJS7E0749B 5 Apacer • •
Corsair VS1GB667D2 1G DS MID095D62864M8CEC N/A Corsair • •
G.SKILL F2-5300CL5D-4GBMQ 4G(kit of 2) DS Heat-Sink Package 5-5-5-15 G.SKILL • •
G.SKILL F2-5400PHU2-2GBNT 2G(kit of 2) DS D2 64M8CCF 0815 C7173S 5-5-5-15 G.SKILL • •
GEIL GX21GB5300SX 1G DS Heat-Sink Package 3 GEIL • •
GEIL GX22GB5300LX 2G DS Heat-Sink Package 5 GEIL • •
HY HYMP 512U64CP8-Y5 AB 1G DS HY5PS12521CFP-Y5 5 Hynix • •
Kingmax KLCD48F-A8KB5 1G DS KKEA88B4LAUG-29DX N/A Kingmax • •
Kingston KVR667D2N5/1G 1G DS
Kingston KVR667D2N5/2G 2G DS E1108ACBG-8E-E 0813A90CC N/A Elpida • •
Nanya NT1GT64U8HB0BY-3C 1G DS NT5TU64M8BE-3C72155700CP 5 Nanya • •
PSC AL7E8F73C-6E1 1G SS A3R1GE3CFF734MAA0J 5 PSC • •
Qimonda HYS64T128020EU-3S-B2 1G DS HYB18T 512B00B2F3SFSS28171 5 Qimonda • •
Samsung M378T5263AZ3-CE6 4G DS K4T2G084QA-HCE6 N/A Samsung • •
Super Talent T667UB1GV 1G DS PG 64M8-800 0750 5 Super Talent • •
Transcend JM667QLJ-1G 1G DS E5108AJBG-6E-E 5 Elpida • •
Twinmos 8D-A3JK5MPETP 512MB SS A3R12E3GEF633ACAOY 5 PSC • •
ELIXIR M2Y1G64TU8HA2B-3C 1G DS M2TU 51280AE-3C717095R28F 5 ELIXIR • •
Leadmax LRMP 512U64A8-Y5 1G DS HY5PS12821CFP-Y5 C 702AA N/A Hynix • •
SS/
Chip No. CL Chip Brand
DS
SO1280420822 SOP D6408TR4CGL25U
SL156304PECXA
N/A Kingston • •
SS: Single-sided / DS: Double-sided
DIMM support:
• A*: Supports one module inserted into either slot as the single-channel memory
conguration.
• B*: Supports one pair of modules inserted into both the yellow slots as one pair of
dual-channel memory conguration.
Visit the ASUS website at www.asus.com for the latest QVL.
DIMM
support
A* B*
1.5 Expansion slots
In the future, you may need to install expansion cards. Refer to the technical documentation
that comes with your expansion card for installation details.
Ensure to unplug the power cord before adding or removing expansion cards. Failure to do
so may cause you physical injury and damage motherboard components.
1.5.1 PCI slots
The PCI slots support cards such as LAN cards, SCSI cards, USB cards, and other cards
that comply with the PCI specications.
1.5.2 PCI Express x1 slot
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
1.5.3 PCI Express x16 slot
This motherboard supports PCI Express x16 graphics cards that comply with the PCI
Express specications.
1-6ASUS M4N78-AM V2
Page 16
1.6 Jumpers
1. Clear RTC RAM (3-pin 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 clearing the CMOS, 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 CPU Parameter Recall (C.P.R.) feature. Shut
down and reboot the system, then the BIOS automatically resets parameter settings to
default values.
2. USB device wake-up (3-pin USBPW1-4, USBPW5-10)
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 these jumpers to +5VSB to wake up the compurer from S3 and S4 sleep
modes (no power to CPU, DRAM in slow refresh, power supply in reduced power
mode).
Chapter 1: Product introduction1-7
Page 17
3. Keyboard power (3-pin KBPWR)
4 53
68 7
2
10 9
1
11
This jumper allows you to enable or disable the keyboard wake-up feature. When you
set this jumper to pins 2-3 (+5VSB), you can 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.
1.7 Connectors
1.7.1 Rear panel ports
1. PS/2 Mouse port (green). This port is for a PS/2 mouse.
2. Parallel port. This 25-pin port connects a parallel printer, a scanner, or other 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
Activity/Link LED Speed LED
Status Description Status Description
OFF No link OFF 10Mbps connection
ORANGE Linked ORANGE 100Mbps connection
BLINKING Data activity GREEN 1Gbps connection
ACT/LINK
LED
LAN port
SPEED
LED
1-8ASUS M4N78-AM V2
Page 18
4. Line In port (light blue). This port connects to the tape, CD, DVD player, or other
audio sources.
5. Line Out port (lime). This port connects to a headphone or a speaker. In 4-channel
and 6-channel congurations, the function of this port becomes Front Speaker Out.
6. Microphone port (pink). This port connects to a microphone.
Refer to the audio conguration table below for the function of the audio ports in 2, 4, or
6-channel conguration.
Audio 2, 4, 6-channel conguration
Port Headset 2-channel 4-channel 6-channel
Light Blue Line In Rear Speaker Out Rear Speaker Out
Lime Line Out Front Speaker Out Front Speaker Out
Pink Mic In Mic In Bass/Center
7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0 devices.
8. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports connect to
USB 2.0 devices.
9. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other
VGA-compatible devices.
10. COM port. This 9-pin COM1 port is for pointing devices or other serial devices.
11. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard.
1.7.2 Internal connectors
1. Speaker connector (4- pin SPEAKER)
This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
Chapter 1: Product introduction1-9
Page 19
2. Serial ATA connectors (7-pin SATA1, SATA2, SATA3, SATA4)
These connectors are for the Serial ATA signal cables for Serial ATA 3Gb/s hard disk
and optical disk drives. The Serial ATA 3Gb/s is backward compatible with Serial ATA
1.5Gb/s specication. The data transfer rate of the Serial ATA 3Gb/s is faster than that
of the standard parallel ATA (133MB/s).
• Install the Windows® XP Service Pack 1 or later versions before using Serial ATA.
• The motherboard does not provide a oppy disk drive connector. You could use a USB
oppy disk drive when installing Windows® XP operating system on a hard disk drive
that includes a RAID/AHCI set.
• Due to Windows® XP limitation, Windows® XP may not recognize the USB oppy disk
drive.
• For more details on RAID/AHCI, refer to the RAID/AHCI Supplementary Guide included
in the folder named Manual in the support DVD.
3. 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 Denition Audio or AC`97 audio standard.
We recommend that you connect a high-denition front panel audio module to this
connector to avail of the motherboard high-denition audio capability.
If you want to connect a high-denition 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 AC97 front panel audio module to this connector, set the item to [AC97]. See page 2.4.3
Chipset for details.
1-10ASUS M4N78-AM V2
Page 20
4. IDE connector (40-1 pin PRI_IDE)
The onboard IDE connector is for an 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 congure your devices.
Drive jumper setting Mode of device(s) Cable connector
Single device Cable-Select or Master - Black
Cable-Select
Two devices
Master Master
Slave Slave
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.
• If any device jumper is set as “Cable-Select”, ensure that all other device jumpers have
the same setting.
• Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE devices.
Master Black
Slave Gray
Black or gray
5. 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.
Chapter 1: Product introduction1-11
Page 21
6. USB connectors (10-1 pin USB56, USB78, USB910)
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 the USB 2.0 specication that supports up
to 480Mbps 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.
7. CPU fan connector (4-pin CPU_FAN)
The CPU fan connector supports cooling fans of 350mA~740mA (8.88W max.).
Connect the CPU fan cable to the CPU fan connector on the motherboard, ensuring
that the black wire of each cable matches the ground pin of the connector.
DO NOT forget to connect the CPU fan cable to the CPU fan connector. Insufcient air ow
inside the system may damage the motherboard components. It is not a jumper! DO NOT
place a jumper cap on the CPU fan connector.
Only the CPU fan supports the ASUS Q-Fan feature.
1-12ASUS M4N78-AM V2
Page 22
8. 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 t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.
•
We recommend that you use an ATX 12V Specication 2.0-compliant power supply unit
(PSU) with a minimum of 300W 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, make sure 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 conguring 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.
9. System panel connector (10-1 pin F_PANEL)
This connector supports several chassis-mounted functions.
Chapter 1: Product introduction1-13
Page 23
• 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 HDD Activity LED lights up or ashes 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.
10. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for a Sony/Philips Digital Interface (S/PDIF) port.
Ensure that the audio device of Sound playback is VIA High Denition Audio (the name
may be different based on the OS). Go to Start > Control Panel > Sounds and Audio
Devices > Sound Playback to congure the setting.
The S/PDIF module is purchased separately.
1-14ASUS M4N78-AM V2
Page 24
1.8 Software support
1.8.1 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. Refer to your OS documentation for
detailed information.
• Ensure that you install Windows® XP Service Pack 3 or later versions / Windows® Vista
Service Pack 1 or later versions before installing the drivers for better compatibility and
system stability.
1.8.2 Support DVD information
The Support DVD that comes with the motherboard package contains drivers, software
applications, and utilities that you can install to get 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.
To run the Support DVD
Place the Support DVD into the optical drive. The DVD automatically displays the Drivers
menu if the Autorun function is enabled on your computer.
Click an icon to
display Support DVD/
motherboard information
Click an item to install
If the Autorun function is NOT enabled on your computer, browse the contents of the
Support DVD to locate the le ASSETUP.EXE from the BIN folder. Double-click
ASSETUP.EXE to run the DVD.
Chapter 1: Product introduction1-15
Page 25
Chapter 2
BIOS information
2.1 Managing and updating your BIOS
Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to
restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update
utility.
2.1.1 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:
1. Place the Support DVD into the optical drive. The Drivers menu appears.
2. Click the Utilities tab, then click 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 > ASUS Update >
ASUS Update to launch the ASUS Update utility.
2. From the dropdown list, select either of the following methods:
Updating from the Internet
a. Select Update BIOS from the Internet, then click Next.
b. Select the ASUS FTP site nearest you to avoid network trafc, or click Auto Select
then click Next.
c. From the FTP site, select the BIOS version you want to download then click Next.
The ASUS Update utility is capable of updating itself through the Internet. Always update
the utility to avail all its features.
Chapter 2: BIOS information 2-1
Page 26
Updating from a BIOS file
a. Select Update BIOS from a le, then click Next.
b. Locate the BIOS le from the Open window, then click Open.
3. Follow the onscreen instructions to complete the updating process.
2.1.2 ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based
utility.
Download the latest BIOS le from the ASUS website at www.asus.com.
To update the BIOS using EZ Flash 2:
1. Insert the USB ash disk that contains the latest BIOS le to a USB port, then launch
EZ Flash 2 in either of these two ways:
• Press <Alt> + <F2> during POST to display the following:
ASUSTek EZ Flash 2 BIOS ROM Utility V3.36
FLASH TYPE: MXIC 25L8005
Current ROM
BOARD: M4N78-AM-V2
VER: 0302 (H:00 B:08)
DATE: 03/03/2009
PATH: C:\
C:
Update ROM
BOARD: Unknown
VER: Unknown
DATE: Unknown
Note
[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [ESC] Exit
• Enter the BIOS setup program. Go to Tools > EZ Flash 2 then press <Enter>.
2. Press <Tab> to locate the correct le. Press <Enter>. EZ Flash 2 performs the BIOS
updating process and automatically reboots the system when done.
• This function supports USB ash disks 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!
2-2 ASUS M4N78-AM V2
Page 27
2.1.3 ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le
when it fails or gets corrupted during the updating process. You can update a corrupted BIOS
le using the motherboard Support DVD or a USB ash disk that contains the updated BIOS
le.
• Prepare the motherboard Support DVD or a USB ash disk containing the updated
motherboard BIOS before using this utility.
• Always connect the SATA cable to the SATA1/2/3/4 connector; otherwise, the utility will
not function.
Recovering the BIOS
To recover the BIOS:
1. Turn on the system.
2. Insert the Support DVD or the USB ash disk containing the BIOS le to the optical
disk drive or a USB port.
The utility displays the following message and automatically checks the Support DVD
or the USB ash disk for the BIOS le.
Bad BIOS checksum. Starting BIOS recovery...
Checking for CD-ROM...
When the BIOS le is found, the utility reads it and starts erasing the corrupted BIOS
le.
Bad BIOS checksum. Starting BIOS recovery...
Checking for CD-ROM...
CD-ROM found!
Reading le “M4NAMV2.ROM”. Completed.
Start Erasing...
Start Programming...
3. Restart the system after the utility completes the updating process.
• Only the USB ash disk with FAT 32/16 format and single partition supports ASUS
CrashFree BIOS 3. The device size should be smaller than 8GB.
• DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
The recovered BIOS may not be the latest BIOS version for this motherboard. Download
the latest BIOS le from the ASUS website at www.asus.com.
Chapter 2: BIOS information 2-3
Page 28
2.2 BIOS setup program
Use the BIOS Setup program when you are installing a motherboard, reconguring your
system, or prompted to “Run Setup.” This section explains how to congure your system
using this utility.
If you want 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 that you always shut down the system properly from the operating system.
• The default BIOS settings for this motherboard apply to 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 Setup Defaults item under the Exit menu. See section 2.8 Exit menu.
• The BIOS setup screens in this section are for reference only. They may not exactly
match what you see on your screen.
• Visit the ASUS website at www.asus.com to download the latest BIOS le for this
motherboard.
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.
Main Advanced Power Boot Tools Exit
BIOS SETUP UTILITY
System Time [19:34:30]
System Date [Wed 08/27/2008]
Primary IDE Master :[Not Detected]
Primary IDE Slave :[Not Detected]
SATA1 :[Not Detected]
SATA2 :[Not Detected]
SATA3 :[Not Detected]
SATA4 :[Not Detected]
Storage Conguration
System Information
Use [ENTER], [TAB]
or [SHIFT-TAB] to
select a eld.
Use [+] or [-] to
congure system Time.
Select Screen
Select Item
2.3.1 System Time [xx:xx:xx]
Allows you to set the system time.
2.3.2 System Date [Day xx/xx/xxxx]
Allows you to set the system date.
2-4 ASUS M4N78-AM V2
Page 29
2.3.3 Primary IDE Master/Slave, SATA 1/2/3/4
While entering Setup, the BIOS automatically detects the presence of IDE/SATA devices.
There is a separate submenu for each IDE/SATA device. Select a device item then press
<Enter> to display the IDE/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-congurable. These items show Not Detected if no IDE/SATA device is
installed in the system.
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 specically conguring a CD-ROM drive. Select
[ARMD] (ATAPI Removable Media Device) if your device is either a ZIP, LS-120, or MO drive.
Conguration options: [Not Installed] [Auto] [CDROM] [ARMD]
This item only appears in the Primary IDE Master/Slave menus.
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.
Conguration 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. Conguration options: [Disabled] [Auto]
PIO Mode [Auto]
Selects the PIO mode. Conguration options: [Auto] [0] [1] [2] [3] [4]
DMA Mode [Auto]
Selects the DMA mode. Conguration options: [Auto]
SMART Monitoring [Auto]
Sets the Smart Monitoring, Analysis, and Reporting Technology.
Conguration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Enabled]
Enables or disables 32-bit data transfer. Conguration options: [Disabled] [Enabled]
Chapter 2: BIOS information 2-5
Page 30
2.3.4 Storage Conguration
The items in this menu allow you to set or change the congurations for the storage devices
installed in the system. Select an item then press <Enter> if you want to congure the item.
Onboard PCI IDE Controller [Enabled]
Enables or disables the onboard IDE controller. Conguration options: [Disabled] [Enabled]
OnChip S-ATA Controller [Enabled]
Enables or disables the onchip SATA controller. Conguration options: [Enabled] [Disabled]
SATA Mode Select [SATA Mode]
Selects the SATA mode. Conguration options: [SATA Mode] [RAID Mode] [AHCI Mode]
2.3.5 System Information
This menu gives you an overview of the general system specications. The BIOS
automatically detects the items in this menu.
BIOS Information
Displays the auto-detected BIOS information
Processor
Displays the auto-detected CPU specication
System Memory
Displays the auto-detected system memory
2.4 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system
devices.
Take caution when changing the settings of the Advanced menu items. Incorrect eld
values can cause the system to malfunction.
Main Advanced Power Boot Tools Exit
JumperFree Conguration
CPU Conguration
Chipset
Onboard Devices Conguration
PCIPnP
USB Conguration
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
2-6 ASUS M4N78-AM V2
BIOS SETUP UTILITY
Adjust System
Frequency/Voltage etc.
Page 31
2.4.1 JumperFree Conguration
The items in this menu may vary depending on the AMD CPU type.
CPU Overclocking [Auto]
Selects the CPU overclocking options to achieve desired CPU internal frequency.
[Manual] - Allows you to manually set overclocking parameters.
[Auto] - Loads the optimal settings for the system.
[Overclock Prole] - Loads overclocking proles with optimal parameters for stability when
overclocking.
The following item appears only when the CPU Overclocking item is set to [Manual].
CPU Frequency [200]
Allows you to set the CPU frequency. Conguration options: [Min.=200], [Max.=550]
The following item appears only when the CPU Overclocking item is set to
[Overclock Prole].
Overcloking Options [Auto]
Allows you to select the overclocking prole. Conguration options: [Auto]
[Overclock 3%] [Overclock 5%] [Overclock 7%] [Test Mode]
GPU Overclocking [Auto]
Congures the GPU overclocking options. Conguration options: [Auto] [Manual]
The following items appear only when the GPU Overclocking item is set to [Manual].
GPU Frequency [500]
Allows you to set the GPU frequency. Conguration options: [Min.=500] [Max.=999]
Shader Frequency [1200]
Allows you to set the shader frequency. Conguration options: [Min.=1000]
[Max.=2000]
PCIE Overclocking [Auto]
Congures the PCIE overclocking options. Conguration options: [Auto] [Manual]
The following item appears only when the PCIE Overclocking item is set to [Manual].
PCIE Frequency [100]
Allows you to set the PCIE frequency. Conguration options: [Min.=100], [Max.=150]
Chapter 2: BIOS information 2-7
Page 32
Processor Frequency Multiplier [Auto]
Allows you to select the processor frequency. Conguration options: [Auto] [x4.0 800MHz]
[x5.0 1000MHz] [x6.0 1200MHz] [x7.0 1400MHz] [x8.0 1600MHz] [x9.0 1800MHz]
Processor Voltage [Standard]
Allows you to set the processor voltage. Conguration options: [Power Saving Mode]
[Standard] [+50mv] [+100mv]
Hyper Transport Speed [Auto]
Allows you to select the Hyper Transport speed. Conguration options: [200MHz] [400MHz]
[600MHz] [800MHz] [1GHz] [Auto]
Hyper Transport Width [16 16 ]
Allows you to select the Hyper Transport width. Conguration options: [8 8 ] [16 16 ]
Memory Clock Mode [Auto]
Allows you to select the memory clock mode. Conguration options: [Auto] [Manual]
The following item appears only when the Memory Clock Mode item is set to [Manual].
Memclock Value [333MHz]
Allows you to set the memory clock value.
Conguration options: [333MHz] [400MHz]
DRAM Timing Mode [Auto]
Allows you to set the DRAM timing mode. Conguration options: [Auto] [DCT 0]
The following items appear only when you set the DRAM Timing Mode item to
[DCT 0].
CAS Latency (CL) [Auto]
Conguration options: [Auto] [3 CLK] ~ [6 CLK] [7 CLK DH_Only]
TRCD [Auto]
Conguration options: [Auto] [3 CLK] ~ [6 CLK]
TRP [Auto]
Conguration options: [3 CLK] ~ [6 CLK] [Auto]~ [6 CLK] [Auto]
tRTP [Auto]
Conguration options: [Auto] [2-4 CLK] [3-5 CLK]
TRAS [Auto]
Conguration options: [Auto] [5 CLK] ~ [18 CLK]
TRC [Auto]
Conguration options: [11 CLK] ~ [26 CLK] [Auto]
tWR [Auto]
Conguration options: [Auto] [3 CLK] ~ [6 CLK]
TRRD [Auto]
Conguration options: [Auto] [2 CLK] ~ [5 CLK]
tRWTTO [Auto]
Conguration options: [Auto] [2 CLK] ~ [9 CLK]
2-8 ASUS M4N78-AM V2
Page 33
tWRRD [Auto]
Conguration options: [Auto] [0 CLK] ~ [3 CLK]
tWTR [Auto]
Conguration options: [Auto] [1 CLK] [2 CLK] [3 CLK][Auto] [1 CLK] [2 CLK] [3 CLK]
tWRWR [Auto]
Conguration options: [Auto] [1 CLK] [2 CLK] [3 CLK]
tRDRD [Auto]
Conguration options: [Auto] [2 CLK] [3 CLK] [4 CLK] [5 CLK]
tRFC0/1/2/3 [Auto]
Conguration options: [Auto] [75ns] [105ns] [127.5ns] [195ns] [327.5ns]
Memory Over Voltage [Auto]
Allows you to set the memory over voltage. The value ranges from 1.85000V to 2.24375V
with a 0.00625V increment. Use the <+> / <-> keys to adjust the value. Conguration options:
[Auto] [Max. = 2.24375V] [Min. = 1.85000V]
Chipset Voltage [Auto]
Allows you to set the chipset voltage. Conguration options: [Auto] [+50mv] [+100mv]
[+150mv]
2.4.2 CPU Conguration
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. Conguration options: [Disabled] [Enabled]
Microcode Updation [Enabled]
Allows you to enable or disable the microcode updation. Conguration options: [Disabled]
[Enabled]
Secure Virtual Machine Mode [Disabled]
Allows you to enable or disable the AMD Secure Virtual Machine mode.
Conguration options: [Disabled] [Enabled]
Cool ‘n’ Quiet [Enabled]
Allows you to enable or disable the generation of ACPI_PPC, _PSS, and _PCT objects.
Conguration options: [Disabled] [Enabled]
CPU Prefetching [Enabled]
Enables or disables the CPU prefetching. Conguration options: [Enabled] [Disabled]
Chapter 2: BIOS information 2-9
Page 34
2.4.3 Chipset
The Chipset menu allows you to change the advanced chipset settings. Select an item then
press <Enter> to display the sub-menu.
NorthBridge Conguration
Memory Conguration
Bank Interleaving [Auto]
Allows you to enable the bank memory interleaving.
Conguration options: [Disabled] [Auto]
Channel Interleaving [Disabled]
Allows you to enable the channel memory interleaving.
Conguration options: [Disabled] [Address bits 6] [Address bits 12]
[XOR of Address bits [20:16, 6]] [XOR of Address bits [20:16, 9]]
Enable Clock to All DIMMs [Disabled]
Enables or disables clock to all DIMMs. Conguration options: [Disabled] [Enabled]
MemClk Tristate C3/ATLVID [Disabled]
Enables or disables the MemClk Tristate C3/ALTVID.
Conguration options: [Disabled] [Enabled]
Memory Hole Remapping [Enabled]
Enables or disables the memory remapping around memory hole.
Conguration options: [Disabled] [Enabled]
DCT Unganged Mode [Auto]
Allows you to enable or disable Unganed mode.
Conguration options: [Auto] [Always]
Power Down Enable [Enabled]
Enables or disables the DDR power down mode.
Conguration options: [Disabled] [Enabled]
ECC Conguration
ECC Mode [Disabled]
Enables or disables the DRAM ECC that allows the hardware to report and correct
memory errors automatically. Conguration options: [Disabled] [Basic] [Good] [Super]
[Max] [User]
SouthBridge Conguration
Primary Graphics Adapter [PCIE VGA Card First]
Allows you to select the primary graphics adapter.
Conguration options: [PCIE VGA Card First] [PCI VGA Card First] [Internal VGA First]
Hybrid SLI Mode [mGPU Auto]
Allows you to select the Hybrid SLI mode.
Comnguration options: [mGPU Auto] [mGPU always enable]
iGPU Frame Buffer Size [128MB]
Sets the iGPU frame buffer size. Conguration options: [32MB] [64MB] [128MB] [256MB]
2-10 ASUS M4N78-AM V2
Page 35
PCIE 2.0 Support [Auto]
Congures the PCIE 2.0 support. Conguration options: [Disabled] [Auto]
AZALIA AUDIO [Enabled]
Allows you to enable or disable the HD audio mode. Conguration options: [Disabled]
[Enabled]
Front Panel Select [HD Audio]
Allows you to set the HD audio mode. Conguration options: [AC97] [HD Audio]
Onboard LAN [Enabled]
Allows you to set or disable the Onboard LAN. Conguration options: [Enabled] [Disabled]
Onboard LAN Boot ROM [Disabled]
Allows you to enable or disable the Onboard LAN boot ROM.
Conguration options: [Enabled] [Disabled]
SouthBridge ACPI HPET TABLE [Enabled]
Allows you to enable or disable SouthBridge ACPI HPET TABLE.
Conguration options: [Disabled] [Enabled]
2.4.4 Onboard Devices Conguration
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Conguration options: [Disabled] [3F8/IRQ4][2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]
Parallel Port Address [378]
Allows you to select the Parallel Port base addresses. Conguration options: [Disabled] [378]
[278] [3BC]
Parallel Port Mode [Normal]
Allows you to select the Parallel Port mode. Conguration options: [Normal] [Bi-Directional]
[EPP] [ECP] [EPP & ECP]
2.4.5 PCI PnP
The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices.
The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA
devices, and setting the memory size block for legacy ISA devices.
Take caution when changing the settings of the PCI PnP menu items. Incorrect eld values
can cause the system to malfunction.
Plug and Play O/S [No]
When set to [No], BIOS congures all the devices in the system. When set to [Yes] and if you
install a Plug and Play operating system, the operating system congures the Plug and Play
devices not required for boot. Conguration options: [No] [Yes]
Chapter 2: BIOS information 2-11
Page 36
2.4.6 USB Conguration
The items in this menu allows you to change the USB-related features. Select an item then
press <Enter> to display the conguration 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]
Enables or disables the USB functions. Conguration options: [Enabled] [Disabled]
USB 2.0 Controller [Enabled]
Enables or disables the USB 2.0 Controller. Conguration options: [Enabled] [Disabled]
Legacy USB Support [Auto]
Allows you to enable or disable support for Legacy USB storage devices, including USB ash
drives and USB hard drives. 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. Conguration options: [Disabled] [Enabled]
[Auto]
USB 2.0 Controller Mode [HiSpeed]
Allows you to congure the USB 2.0 controller in HiSpeed (480Mbps) or Full Speed
(12Mbps). Conguration options: [FullSpeed] [HiSpeed]
The following items only appear when a USB storage device is plugged in.
USB Mass Storage Device Conguration
USB Mass Storage Reset Delay [20 Sec]
Allows you to set the maximum time that the BIOS waits for the USB storage device to
initialize. Conguration options: [10 Sec] [20 Sec] [30 Sec] [40 Sec]
Emulation Type [Auto]
Allows you to set the emulation type. Conguration options: [Auto] [Floppy]
[Forced FDD] [Hard Disk] [CDROM]
2.5 Power menu
The Power menu items allow you to change the settings for the Advanced Conguration and
Power Interface (ACPI) and the Advanced Power Management (APM). Select an item then
press <Enter> to display the conguration options.
Suspend Mode [Auto]
ACPI 2.0 Support [Disabled]
ACPI APIC Support [Enabled]
APM Conguration
Hardware Monitor
2-12 ASUS M4N78-AM V2
Select the ACPI state
used for System
Suspend.
Page 37
2.5.1 Suspend Mode [Auto]
Allows you to select the Advanced Conguration and Power Interface (ACPI) state to be used
for system suspend. Conguration options: [S1 (POS) Only] [S3 Only] [Auto]
[S1(POS) Only] - Enables the system to enter the ACPI S1 (Power on Suspend) sleep
state In S1 sleep state, the system appears suspended and stays in a low power mode. The
system can be resumed at any time.
[S3 Only] - Enables the system to enter the ACPI S3 (Suspend to RAM) sleep state (default).
In S3 sleep state, the system appears to be off and consumes less power than in the S1
state. When signaled by a wake-up device or event, the system resumes to its working state
exactly where it was left off.
[Auto] - Detected by OS.
2.5.2 ACPI 2.0 Support [Disabled]
Allows you to add additional tables as per Advanced Conguration and Power Interface
(ACPI) 2.0 specications. Conguration options: [Disabled] [Enabled]
2.5.3 ACPI APIC Support [Enabled]
Allows you to enable or disable the Advanced Conguration and Power Interface (ACPI)
support in the Application-Specic Integrated Circuit (ASIC). When set to Enabled, the ACPI
APIC table pointer is included in the RSDT pointer list. Conguration options: [Disabled]
[Enabled]
2.5.4 APM Conguration
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.
Conguration options: [Power On] [Power Off] [Last State]
Power On By PCI/PCIE Device [Disabled]
When set to [Enabled], this parameter allows you to turn on the system through a PCI/PCIE
card. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.
Conguration options: [Disabled] [Enabled]
Power On By Ring [Disabled]
Enable or disable RI to generate a wake event. Conguration options: [Disabled] [Enabled]
Power On By PS/2 KB/MS [Disabled]
Enable or disable PS/2 Keyboard/Mouse to generate a wake event.
Conguration options: [Disabled] [Enabled]
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, RTC Alarm Hour, RTC Alarm Minute, and RTC Alarm
Second appear with set values. Conguration options: [Disabled] [Enabled]
Chapter 2: BIOS information 2-13
Page 38
2.5.5 Hardware Monitor
CPU Temperature [xxxºC/xxxºF]
MB Temperature [xxxºC/xxxºF]
The onboard hardware monitor automatically detects and displays the motherboard and CPU
temperatures. Select Ignored if you do not want to display the detected temperatures.
CPU Fan Speed [xxxxRPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the CPU fan speed in
rotations per minute (RPM). If the fan is not connected to the motherboard, the eld shows
N/A. Select Ignored if you do not want the detected speed to be displayed.
CPU Q-Fan Control [Disabled]
Allows you to enable or disable the ASUS Q-Fan feature that smartly adjusts the CPU fan
speeds for more efcient system operation. Conguration options: [Disabled] [Enabled]
VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard
voltage regulators.
2.6 Boot menu
The Boot menu items allow you to change the system boot options. Select an item then
press <Enter> to display the sub-menu.
Main Advanced Power Boot Tools Exit
Boot Settings
Boot Device Priority
Boot Settings Conguration
Security
BIOS SETUP UTILITY
Species the Boot
Device Priority
sequence.
A virtual oppy disk
drive (Floppy Drive B:)
may appear when you set
2.6.1 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. Conguration options: [Removable Device] [Hard Drive]
[ATAPI CD-ROM ] [Disabled]
2.6.2 Boot Settings Conguration
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. Conguration options: [Disabled] [Enabled]
Full Screen Logo [Enabled]
This allows you to enable or disable the full screen logo display feature.
Conguration options: [Disabled] [Enabled]
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.
2-14 ASUS M4N78-AM V2
Page 39
AddOn ROM Display Mode [Force BIOS]
Sets the display mode for option ROM. Conguration options: [Force BIOS] [Keep Current]
Bootup Num-Lock [On]
Allows you to select the power-on state for the NumLock. Conguration 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.
Conguration options: [Disabled] [Enabled]
Hit ‘DEL’ Message Display [Enabled]
When set to Enabled, the system displays the message Press DEL to run Setup during
POST. Conguration options: [Disabled] [Enabled]
2.6.3 Security
The Security menu items allow you to change the system security settings. Select an item
then press <Enter> to display the conguration 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 then press <Enter>.
2. On the password box, key in a password composed of up to six letters and/or numbers,
then press <Enter>.
3. Conrm the password when prompted.
The message Password Installed appears after you successfully set your password.
To change the supervisor password, follow the same steps in setting a supervisor password.
To clear the supervisor password, select the Change Supervisor Password then press
<Enter> twice. 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 1.6 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.
Conguration 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 eld.
[Limited] - allows changes only to selected elds, such as Date and Time.
[Full Access] - allows viewing and changing all the elds in the Setup utility.
Chapter 2: BIOS information 2-15
Page 40
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.
2. On the password box, key in a password composed of up to six letters and/or numbers,
then press <Enter>.
3. Conrm the password when prompted.
The message Password Installed appears after you set your password successfully.
To change the user password, follow the same steps 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. Conguration options: [Setup] [Always]
2.7 Tools menu
Main Advanced Power Boot Tools Exit
ASUS EZ Flash 2
AI NET2
BIOS SETUP UTILITY
Press ENTER to run
the utility to select
and update BIOS.
2.7.1 ASUS EZ Flash 2
Allows you to run ASUS EZ Flash 2. After you press <Enter>, a conrmation message
appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to
conrm your choice.
2.7.2 AI NET 2
Check Broadcom Phy LAN cable [Disabled]
Enables or disables checking of the Broadcom LAN cable during the Power-On Self-Test
(POST). Conguration options: [Disabled] [Enabled]
2.8 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.
Exit Options
Exit & Save Changes
Exit & Discard Changes
Discard Changes
Load Setup Defaults
2-16 ASUS M4N78-AM V2
Exit system setup
after saving the
changes.
F10 key can be
used for this
operation.
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