Motherboard

A8N-VM CSM

E2294 Revised Edition V2 October 2005
Copyright 2005 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.

Contents

Notices... vi Safety information.... vii A8N-VM CSM specifications summary... viii
Chapter 1: Product introduction
1.1 1.2 1.3 Welcome!... 1-2 Package contents... 1-2 Special features... 1-2 1.3.1 1.3.2 1.4 1.5 Product highlights... 1-2 Innovative ASUS features.. 1-5
Before you proceed.. 1-6 Motherboard overview... 1-7 1.5.1 1.5.2 1.5.3 Motherboard layout.. 1-7 Placement direction.. 1-8 Screw holes.. 1-8

1.6 1.7

Central Processing Unit (CPU)... 1-9 System memory... 1-11 1.7.1 1.7.2 1.7.3 1.7.4 Overview... 1-11 Memory configurations... 1-11 Installing a DIMM... 1-13 Removing a DIMM.. 1-13 Installing an expansion card.. 1-14 Configuring an expansion card.. 1-14 PCI slots... 1-16 PCI Express x1 slot.. 1-16 PCI Express x16 slot.. 1-16
Expansion slots.. 1-14 1.8.1 1.8.2 1.8.3 1.8.4 1.8.5

1.9 1.10

Jumpers... 1-17 Connectors... 1-20 1.10.1 Rear panel connectors.. 1-20 1.10.2 Internal connectors.. 1-22

Chapter 2: BIOS setup

2.1 Managing and updating your BIOS.. 2-2 2.1.1 2.1.2 2.1.3 2.1.4 2.2 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 2.2.6 2.2.7 2.2.8 2.2.9 2.3 2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.4 2.4.1 2.4.2 2.4.3 2.4.4 2.4.5 2.4.6 2.4.7 Creating a bootable floppy disk.. 2-2 ASUS EZ Flash utility... 2-3 AFUDOS utility... 2-4 ASUS Update utility.. 2-6 BIOS menu screen.. 2-10 Menu bar... 2-10 Navigation keys.. 2-10 Menu items... 2-11 Sub-menu items... 2-11 Configuration fields... 2-11 Pop-up window... 2-11 Scroll bar.. 2-11 General help... 2-11 System Time.. 2-12 System Date.. 2-12 Legacy Diskette A.. 2-12 Primary and Secondary IDE Master/Slave; First, Second, Third, and Fourth SATA.. 2-13 IDE Configuration.. 2-14 System Information... 2-15 AMD Cool n Quiet Configuration.. 2-16 JumperFree Configuration. 2-17 CPU Configuration.. 2-18 Chipset... 2-18 Onboard Devices Configuration.. 2-25 PCI PnP... 2-26 USB Configuration.. 2-27
BIOS setup program... 2-9

Main menu... 2-12

Advanced menu... 2-16
2.5 Power menu.. 2-28 2.5.1 2.5.2 2.5.3 2.5.4 2.5.5 2.5.6 2.6 2.6.1 2.6.2 2.6.3 2.7 Suspend Mode.. 2-28 Repost Video on S3 Resume.. 2-28 ACPI 2.0 Support.. 2-28 ACPI APIC Support.. 2-28 APM Configuration.. 2-29 Hardware Monitor.. 2-30 Boot Device Priority... 2-32 Boot Settings Configuration.. 2-33 Security... 2-34

Boot menu... 2-32

Exit menu... 2-36
Chapter 3: Software support
3.1 3.2 Installing an operating system.. 3-2 Support CD information... 3-2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3.2.7 Running the support CD... 3-2 Drivers menu... 3-3 Utilities menu... 3-4 Make Disk menu.. 3-5 Manual menu... 3-6 ASUS Contact information.. 3-7 Other information... 3-7

Internal connectors

Power Requirement Form Factor
Manageability Support CD contents WfM2.0, DMI 2.0, WOL by PME, WOR by PME Device drivers ASUS PC Probe II AMD Cool nQuiet utility ASUS Live Update utility Anti-virus software (OEM version)
*Specifications are subject to change without notice.
This chapter describes the motherboard features and the new technologies it supports.

Product introduction

Welcome!
T h a n k y o u f o r b u y i n g a n A S U S A 8 N - V M C S M m o t h e r b o a r d ! 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.

Package contents

ASUS A8N-VM CSM motherboard 2 x Serial ATA signal cables 1 x Serial ATA power cable for two Serial ATA devices 1 x IEEE 1394 1-port module 1 x Ultra DMA 133/100/66 cable 1 x IDE cable 1 x Floppy disk drive cable I/O shield ASUS motherboard support CD User guide
Check your motherboard package for the following items. Motherboard Cables
Accessoy Application CD Documentation
If any of the above items is damaged or missing, contact your retailer.

Special features

Product highlights
Latest processor technology
The motherboard comes with a 939-pin surface mount, Zero Insertion Force (ZIF) socket that supports AMD Athlon 64/Athlon 64 FX/Athlon 64 X2 processors. With an integrated low-latency high-bandwidth memory controller and a highly-scalable HyperTransport technology-based system bus, the motherboard provides a powerful platform for your diverse computing needs, increased office productivity, and enhanced digital media experience. See page 1-9.
NVIDIA GeForce 6150 GPU and NVIDIA nForce 430 MCP chipsets
The NVIDIA GeForce 6150 graphics processing unit (GPU) Northbridge supports Microsoft DirectX 9.0 Shader Model 3.0, dual VGA out (RGB and DVI-D), NVIDIA PureVideo Technology with unprecedented integrated video quality, TV-out, and PCI Express interface. The NVIDIA nForce 430 media and communications processor (MCP) Southbridge delivers NVIDIA Gigabit LAN with ActiveArmor Firewall for secure networking, and NVIDIA MediaShield storage management technology allowing easy RAID configuration (RAID 0, RAID 1, RAID 0+1, and RAID 5) for Serial ATA II.

Dual-channel DDR memory support
Employing the Double Data Rate (DDR) memory technology, the motherboard supports up to 4 GB of system memory using DDR400/333 DIMMs. The ultra-fast 400 MHz memory bus delivers the required bandwidth for the latest 3D graphics, multimedia, and Internet applications. See page 1-11 for details.

PCI Express interface

The motherboard fully supports PCI Express, the latest I/O interconnect technology that speeds up the PCI bus. PCI Express features point-to-point serial interconnections between devices and allows higher clockspeeds by carrying data in packets. This high speed interface is software compatible with existing PCI specifications. See page 1-16 for details.

Serial ATA II technology

The motherboard supports the Serial ATA 3 Gb/s technology through the Serial ATA interfaces and the NVIDIA nForce430 MCP Southbridge. The Serial ATA II 3 Gb/s specification provides twice the bandwidth of the current Serial ATA products with a host of new features, including Native Command Queueing (NCQ), and Power Management (PM) Implementation Algorithm. Serial ATA allows for thinner, more flexible cables with lower pin count, reduced voltage requirement. See page 1-24 for details.
The Hot Swap function is supported only in RAID mode.

ASUS A8N-VM CSM

S/PDIF digital sound ready
The motherboard supports the S/PDIF Out function through the S/PDIF interface at midboard. The S/PDIF technology turns your computer into a high-end entertainment system with digital connectivity to powerful audio and speaker systems. See page 1-25 for details.

USB 2.0 technology

The motherboard implements the Universal Serial Bus (USB) 2.0 specification, dramatically increasing the connection speed from the 12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is backward compatible with USB 1.1. See pages 1-18 and 1-26 for details.

IEEE 1394a support

The IEEE 1394a interface provides high-speed and flexible PC connectivity to a wide range of peripherals and devices compliant to IEEE 1394a standards. The IEEE 1394a interface allows up to 400 Mbps transfer rates through simple, low-cost, high-bandwidth asynchronous (real-time) data interfacing between computers, peripherals, and consumer electronic devices such as camcorders, VCRs, printers,TVs, and digital cameras. See page 1-27 for details.

Innovative ASUS features

ASUS EZ Flash BIOS
With the ASUS EZ Flash, you can easily update the system BIOS even before loading the operating system. No need to use a DOS-based utility or boot from a floppy disk. See page 2-3 for details.

Standard interrupt assignments
IRQ Priority 10 Standard Function System Timer Keyboard Controller Re-direct to IRQ#9 IRQ holder for PCI steering* Communications Port (COM1)* IRQ holder for PCI steering* Floppy Disk Controller Printer Port (LPT1)* System CMOS/Real Time Clock IRQ holder for PCI steering* IRQ holder for PCI steering* IRQ holder for PCI steering* PS/2 Compatible Mouse Port* Numeric Data Processor Primary IDE Channel Secondary IDE Channel
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
A PCI slot 1 PCI slot 2 IEEE 1394 used B used C D shared
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.

PCI slots

The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. The figure shows a LAN card installed on a PCI slot.

PCI Express x1 slot

This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the PCI Express specifications. The following figure shows a network card installed on the PCI Express x1 slot.

PCI Express x16 slot

This motherboard has supports PCI Express x16 graphic cards that comply with PCI Express specifications. The figure shows a graphics card installed on the PCI Express x16 slot.

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. 2. 3. Turn OFF the computer and unplug the power cord. Remove the onboard battery. 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. Reinstall the battery. Plug the power cord and turn ON the computer. 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!

4. 5. 6.

Normal (Default)

Clear CMOS

A8N-VM CSM Clear RTC RAM
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.
USB device wake-up (3-pin USBPW12, USBPW34, USBPW56, USBPW78) 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. The USBPW12 and USBPW34 jumpers are for the rear USB ports. The USBPW56 and USBPW78 jumper is for the internal USB connectors that you can connect to additional USB ports.

+5V (Default) +5VSB

+5V (Default)

USBPW78 USBPW56

A8N-VM CSM USB device wake-up

5 +5V (Default)

5 +5VSB
The USB device wake-up feature requires a power supply that can provide 500mA on the +5VSB lead for each USB port; otherwise, the system will not power up. The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode.
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 when you press a key on the keyboard (the default is the Space Bar). This feature requires an ATX power supply that can supply at least 500 mA on the +5VSB lead, and a corresponding setting in the BIOS.
A8N-VM CSM Keyboard power setting

Connectors

1.10.1 Rear panel connectors

1. 2. 3.

P S / 2 m o u s e p o r t ( g r e e n ). This port is for a PS/2 mouse. P a r a l l e l p o r t. This 25-pin port connects a parallel printer, a scanner, or other devices. I E E E a p o r t. This 6-pin IEEE 1394a port provides high-speed connectivity for audio/video devices, storage peripherals, PCs, or portable devices. L A N ( R J - ) p o r t. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.

LAN port LED indications

ACT/LINK LED Status OFF GREEN BLINKING Description No link Linked Data activity Status OFF ORANGE GREEN SPEED LED Description 10 Mbps connection 100 Mbps connection 1 Gbps connection LAN port ACT/LINK S P E E D LED LED
L i n e I n p o r t ( l i g h t b l u e ). This port connects a tape, CD, DVD player, or other audio sources. L i n e O u t p o r t ( l i m e ). This port connects a headphone or a speaker. In 4-channel/ 6-channel configuration, the function of this port becomes Front Speaker Out. M i c r o p h o n e p o r t ( p i n k ). This port connects a microphone.

Left Audio Channel Ground Ground Right Audio Channel
A8N-VM CSM Internal audio connector

USB+5V USB_P7USB_P7+ GND

USB+5V USB_P8USB_P8+ GND NC
IEEE 1394a connector (10-1 pinIE1394_1 [orange]) This connector is for an additional IEEE 1394a port. Connect the IEEE 1394a module cable (orange) to this connector, then install the module to a slot opening at the back of the system chassis.

IE1394_1

A8N-VM CSM IEEE 1394a connector
Never connect a U S B p o r t m o d u l e c a b l e to the IEEE 1394a connector. Doing so will damage the motherboard!
1 0. Serial port connector (10-1 pin COM1) This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
The serial port bracket (COM1) is purchased separately.
A8N-VM CSM COM port connector

TPA1+ GND TPB1+ +12V

TPA1GND TPB1+12V GND
1 1. 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.
Azalia-compliant pin definition
GND PRESENCE# SENSE1_RETUR SENSE2_RETUR
Legacy AC97-compliant pin definition

AGND NC NC NC

PORT1 L PORT1 R PORT2 R SENSE_SEND PORT2 L MIC2_L MIC2_R Line out_R NC Line out_L
A8N-VM CSM Analog front panel 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, make sure that the Onboard AUDIO item in the BIOS is set to [Enabled]. See page 2-25 for details.
1 2. TV-out connector (6-1 pin TV_OUT) This 6-1 pin connector is for the TV-out port module that allows you to connect a television to your system. Connect one end of the TV-out cable to this connector and the other end to the TV-out module.
The TV-out module is purchased separately.
A8N-VM CSM TV out connector
CVBS out S-video C out S-video Y out
1 3. 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, 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 configuring a system with more power-consuming devices. The system may become unstable or may not boot up if the power is inadequate. You must install a PSU with a higher power rating if you intend to install additional devices.

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 L o a d D e f a u l t S e t t i n g s item under the Exit Menu. See section 2.7 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 (www.asus.com) to download the latest BIOS file for this motherboard and.

BIOS menu screen

Menu bar Configuration fields
Power BIOS SETUP UTILITY Boot Exit Use [ENTER], [TAB] or [SHIFT-TAB] to select a field. Use [+] or [-] to configure the System Time.

Menu items

General help

Advanced

System Time System Date Legacy Diskette A Primary IDE Master Primary IDE Slave Secondary IDE Master Secondary IDE Slave First SATA Second SATA Third SATA Fourth SATA IDE Configuration System Information
[10:55:25] [Mon 08/29/2005] [1.44M, 3.5 in] [ST320410A] [ASUS CD-S520/A] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected]
Select Screen Select Item Enter Go to Sub Screen Tab Select Field F1 General Help F10 Save and Exit ESC Exit
v02.58 (C)Copyright 1985-2004, American Megatrends, Inc.

Sub-menu items

Navigation keys

Menu bar

For changing the basic system configuration For changing the advanced system settings For changing the advanced power management (APM) configuration For changing the system boot configuration For selecting the exit options and loading default settings
The menu bar on top of the screen has the following main items: Main Advanced Power Boot Exit
To select an item on the menu bar, press the right or left arrow key on the keyboard until the desired item is highlighted.
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.
Main Advanced BIOS SETUP UTILITY Power Boot Exit [10:55:25] [Mon 08/29/2005] [1.44M, 3.5 in.] [ST320410A] [ASUS CD-S520/A] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected] [Not Detected] Use [ENTER], [TAB], or [SHIFT-TAB] to select a field. System Time System Date Legacy Diskette A Primary IDE Master Primary IDE Slave Secondary IDE Master Secondary IDE Slave First SATA Second SATA Third SATA Fourth SATA IDE Configuration System Information v02.58 (C)Copyright Use [+] or [-] to configure system time. Select Screen Select Item Enter Go to Sub Screen Tab Select Field F1 General Help F10 Save and Exit ESC Exit 1985-2004, American Megatrends, Inc.

AI Overclocking

[Auto]

AI Overclocking [Auto]

Allows you to select the overclocking options to achieve the desired CPU internal frequency. Select either one of the preset overclocking configiuration options. M a n u a l - allows you to individually set overclocking parameters. A u t o - loads the optimal settings for the system. S t a n d a r d - loads the standard settings for the system.
The following item appears only when you set the A I O v e r c l o c k i n g item to [Manual].

CPU FSB Frequency [XXX]

Allows you to adjust the CPU FSB frequency. The value of this item is auto-detected by the BIOS. Use the < + > and < - > keys to adjust the CPU FSB frequency. You can also type the desired CPU frequency using the numeric keypad. The values range from 200 to 240.

CPU Configuration

The items in this menu show the CPU-related information that the BIOS automatically detects.
BIOS SETUP UTILITY Advanced CPU Configuration Module Version: 14.06 Physical Count: 1 Logical Count: 1 AMD Athlon(tm) 64 Processor 3200+ Revision: D0 Cache L1: 64KB Cache L2: 512KB Speed : 2020MHz Current FSB Multiplier: 10x Maximum FSB Multiplier: 10x Able to Change Freq. : Yes uCode Patch Level : 0x41 This option should remain disabled for the normal operation. The driver developer may enable it for testing purpose.

Chipset

The Chipset menu allows you to change the advanced chipset settings. Select an item then press <Enter> to display the sub-menu.
BIOS SETUP UTILITY Advanced Advanced Chipset Settings WARNING: Setting wrong values in below sections may cause system to malfunction. NorthBridge Configuration SouthBridge/MCP51 Configuration Hyper Transport Configuration Select Screen Select Item Enter Go to Subscreen F1 General Help F10 Save and Exit ESC Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc. Options for NB
Northbridge Configuration
BIOS SETUP UTILITY Advanced Northbridge Chipset Configuration Memory Configuration ECC Configuration NvigpBridge/C51PV Configuration

Memory Configuration

BIOS SETUP UTILITY Advanced Memory Configuration Memclock Mode MCT Timing Mode User Config Mode Burst Length Software Memory Hole [Auto] [Auto] [Auto] [4 Beats] [Disabled] MEMCLK can be set by the code using AUTO, or if you use LIMIT, you can set one of the standard values.

Memclock Mode [Auto]

[Auto] allows the BIOS to set the memclock mode automatically. [Limit] allows you to select from any of the standard values. Configuration options: [Auto] [Limit]
The following item appears when the M e m c l o c k M o d e item is set to [Limit].

Memclock Value [100 MHz]

Allows you to set the memclock value. Configuration options: [100 MHz] [133 MHz] [166 MHz] [183 MHz] [200 MHz]

MCT Timing Mode [Auto]

[Auto] allows the BIOS to set the MCT timing mode automatically. [Manual] allows you to set the values by yourself. Configuration options: [Auto] [Manual]
The following items appear when the M C T T i m i n g M o d e item is set to [Manual].
CAS Latency (CL) [Auto] Configuration options: [Auto] [2.0] [2.5] [3.0] TRAS [Auto] Configuration options: [Auto] [5 CLK] [6 CLK]. [15 CLK] TRP [Auto] Configuration options: [Auto] [2 CLK] [3 CLK]. [6 CLK] TRCD [Auto] Configuration options: [Auto] [2 CLK] [3 CLK]. [6 CLK] TRRD [Auto] Configuration options: [Auto] [2T] [3T] [4T] TRC [Auto] Configuration options: [Auto] [7T] [8T] [9T]. [22T] TRFC [Auto] Configuration options: [Auto] [9T] [10T] [11T]. [24T] TRWT [Auto] Configuration options: [Auto] [1 CLK] [2 CLK]. [6 CLK]

User Config Mode [Auto]

Configuration options: [Auto] [Manual]
The following items appear when the U s e r C o n f i g M o d e item is set to [Manual].

Read Preamble [ 9.5ns]

Configuration options: [2.0ns] [2.5ns] [3.0ns]. [9.5ns]

Asyc Latency [11.0ns]

Configuration options: [4.0ns] [5.0ns] [6.0ns]. [11ns]
CMD-ADDR Timing Mode [ 2T]
Configuration options: [1T] [2T]

Burst length [4 Beats]

Sets the burst length. Configuration options: [8 Beats] [4 Beats] [2 Beats]
Software Memory Hole [Disabled]
Enables or disables the software memory remapping around the memory hole. Configuration options: [Disabled] [Enabled]

ECC Configuration

BIOS SETUP UTILITY Advanced ECC Configuration DRAM ECC Enable MCA DRAM ECC Logging ECC Chip Kill DRAM SCRUB REDIRECT DRAM BG Scrub L2 Cache BG Scrub Data Cache BG Scrub [Enabled] [Disabled] [Disabled] [Disabled] [Disabled] [Disabled] [Disabled] DRAM ECC allows hardware to report and correct memory errors automatically, maintaining system integrity.
DRAM ECC Enable [Enabled]
Allows you to enable or disable DRAM ECC, which allows the hardware to report and correct memory errors automatically to maintain system integrity. Configuration options: [Disabled] [Enabled]

IRQ-xx assigned to [PCI Device]
When set to [PCI Device], the specific IRQ is free for use of PCI/PnP devices. When set to [Reserved], the IRQ is reserved for legacy ISA devices. Configuration options: [PCI Device] [Reserved]

USB Configuration

BIOS SETUP UTILITY Advanced Enables 1.1 USB host controllers.
USB Configuration Module Version - 2.24.0-11.4 USB Devices Enabled: None Legacy USB Support USB 2.0 Controller Mode BIOS EHCI Hand-Off [Auto] [HiSpeed] [Enabled]
The Module Version and USB Devices Enabled items show the auto-detected values. If no USB device is detected, the item shows None.
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 set the USB 2.0 controller mode to HiSpeed (480 Mbps) or FullSpeed (12 Mbps). Configuration options: [FullSpeed] [HiSpeed]
BIOS EHCI Hand-Off [Enabled]
Allows you to enable support for operating systems without an EHCI hand-off feature. Configuration options: [Disabled] [Enabled]

ASUS A8N-VM CSM 2-27

Power menu
The Power menu items allow you to change the settings for the Advanced Power Management (APM). Select an item then press <Enter> to display the configuration options.
Main Advanced Power BIOS SETUP UTILITY Boot Exit [Auto] [No] [Enabled] [Enabled] Select the ACPI state used for System Suspend.
Suspend Mode Repost Video on S3 Resume ACPI 2.0 Support ACPI APIC Support APM Configuration Hardware Monitor
Select Screen Select Item Change Field General Help Save and Exit Exit

Suspend Mode [Auto]

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]

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]
Interrupt 19 Capture [Disabled]
When set to [Enabled], this function allows the option ROMs to trap Interrupt 19. Configuration options: [Disabled] [Enabled]

Security

The Security menu items allow you to change the system security settings. Select an item then press <Enter> to display the configuration options.
BIOS SETUP UTILITY Boot Security Settings Supervisor Password User Password : Not Installed : Not Installed <Enter> to change password. <Enter> again to disabled password.
Change Supervisor Password Change User Password
Select Screen Select Item Enter Change F1 General Help F10 Save and Exit ESC Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc.
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 N o t I n s t a l l e d d. After you set a password, this item shows I n s t a l l e d d. To set a Supervisor Password: 1. 2. 3. Select the Change Supervisor Password item and press <Enter>. From the password box, type a password composed of at least six letters and/or numbers, then press <Enter>. 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 user 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.
BIOS SETUP UTILITY Boot Security Settings Supervisor Password User Password : Not Installed : Not Installed [Full Access] [Setup] Select Screen Select Item Enter Change F1 General Help F10 Save and Exit ESC Exit v02.58 (C)Copyright 1985-2004, American Megatrends, Inc. <Enter> to change password. <Enter> again to disabled password.
Change Supervisor Password User Access Level Change User Password Clear User Password Password Check
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] N o A c c e s s prevents user access to the Setup utility. V i e w O n l y allows access but does not allow change to any field. L i m i t e d allows changes only to selected fields, such as Date and Time. F u l l A c c e s s allows viewing and changing all the fields in the Setup utility.

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 [ O k ] 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 [ O k ] to load default values. Select E x i t & S a v e C h a n g e s or make other changes before saving the values to the non-volatile RAM.
This chapter describes the contents of the support CD that comes with the motherboard package.

Software support

Installing an operating system
This motherboard supports Windows 2000/XP 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. Make sure that you install Windows 2000 Service Pack 4 or the Windows XP Service Pack 1 or later versions before installing the drivers for better compatibility and system stability.

Support CD information

The support CD that came 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 CD are subject to change at any time without notice. Visit the ASUS website(www.asus.com) for updates.

Running the support CD

Place the support CD to the optical drive. The CD automatically displays the D r i v e r s menu if Autorun is enabled in your computer.
Click an icon to display support CD/motherboard information

Battery Asus A32-A8

11,1V 4400mAh

Product features

Guarantee Cell type Voltage Capacity Battery type Certificates 12 months Li-Ion 11.1V 4400mAh Standard RoHs
Check www.whitenergy.com for the complate assortyment
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