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About

Asus A7N8XASUS A7N8X - motherboard - ATX - nForce2 SPP - Socket A

ATA-133, 0 MB / 3 GB (max), DDR SDRAM, NVIDIA nForce2 MCP - 5.1 surround, 6 x USB

With an array of advanced technology, the A7N8X provides a revolutionary audio/video experience. AGP Pro/8X, doubling the bandwidth of AGP 4X, provides cutting-edge graphics performance while Dolby digital 6-channel support brings incredible sound quality.

 

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TEST DE LA CARTE HP ASUS A7N8X LA POUR M. VIGNON Julien

 

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Comments to date: 2. Page 1 of 1. Average Rating:
Ralph1972 3:01am on Thursday, October 21st, 2010 
I aint got nuffin else to say but what i said in pros n conzPermalink Everything but what im gona type Needs more weapons, less graphic.
hakujouryu 6:31am on Saturday, May 29th, 2010 
Bought this board becasue my old chaintech board wasnt compatiable with my new video card. What a great board.

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Documents

doc1

A7N8X-VM/400

User Guide

Motherboard

Checklist
Revised edition V2 February 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.... v Safety information... vi About this guide.... vii A7N8X-VM/400 specification summary.. viii

Features

Chapter 1: Product introduction
1.1 1.2 1.3 1.4 1.5 1.6 Welcome!... 1-2 Package contents... 1-2 Special features... 1-2 Motherboard components.. 1-4 Motherboard layout.. 1-7 Motherboard installation... 1-8 1.6.1 Placement direction.. 1-8 1.6.2 Screw holes... 1-8 1.7 Before you proceed.. 1-9 1.8 Central Processing Unit (CPU)... 1-10 1.9 System memory...1-11 1.10 Expansion slots... 1-12 1.10.1 Configuring an expansion card.. 1-12 1.10.2 Standard Interrupt Assignments. 1-12 1.10.3 AGP slot... 1-13 1.10.4 PCI slots.. 1-13 1.11 Jumpers... 1-14 1.12 Connectors... 1-16
Chapter 2: BIOS information
2.1 Managing and updating your BIOS. 2-2 2.1.1 Creating a bootable floppy disk.. 2-2 2.1.2 Using AFUDOS to copy the current BIOS. 2-3 2.1.3 Using AFUDOS to update the BIOS.. 2-4 2.1.4 Using ASUS EZ Flash to update the BIOS. 2-5 2.1.5 ASUS Update... 2-6 BIOS Setup program... 2-8 2.2.1 BIOS menu bar.. 2-8 2.2.2 Legend bar... 2-9 iii
2.3 Main menu.. 2-10 2.3.1 Primary and Secondary IDE Master/Slave. 2-11 2.3.2 System Information... 2-12 Advanced menu... 2-13 2.4.1 Chipset... 2-13 2.4.2 Onboard Devices Configuration.. 2-14 2.4.3 PCIPnP... 2-16 Power menu... 2-18 2.5.1 Power Up Control.. 2-18 2.5.2 Hardware Monitor.. 2-20 Boot menu.. 2-21 2.6.1 Boot Settings Configuration.. 2-21 2.6.2 Security... 2-23 Exit menu... 2-25
Chapter 3: Software support
3.1 3.2 Installing an operating system.. 3-2 Support CD information.. 3-2 3.2.1 Running the support CD.. 3-2 3.2.2 Drivers menu.. 3-3 3.2.3 Utilities.. 3-4 3.2.4 ASUS contact information.. 3-5

Notices

Federal Communications Commission Statement
This device complies with FCC Rules Part 15. 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 manufacturers 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.

A7N8X-VM/400 specifications summary
CPU Chipset Front Side Bus Memory Socket A for AMD Athlon XP 2700 MHz+ processors NVIDIA nForce2 IGP North bridge NVIDIA nForce2 MCP South bridge 400/333/266 MHz 2 x 184-pin DDR DIMM sockets support up to maximum 2 GB unbuffered PC2700/2100 non-ECC DDR SDRAM memory. Dual-channel memory architecture 3 x PCI 1 x AGP 8X (1.5V only) 2 x UltraDMA133 Integrated GeForce4 MX GPU Supports DVI (AGP-NV-DVI) and TV-out (AV/S) cards Realtek ALC650 6-channel audio CODEC S/PDIF in/out interface Realtek 8201BL 10/100 Mbps LAN PHY Super I/O integrated monitoring of CPU/chassis fan rotation and MB/CPU temperature 1 x Parallel 1 x Serial (COM1) 1 x PS/2 Keyboard 1 x PS/2 Mouse 1 x RJ45 port 1 x Audio I/O 1 x VGA port 4 x USB 2.0/1.x USB connector supports additional 2 USB 2.0 ports CPU/chassis FAN connectors Chassis intrusion connector 20-pin ATX power connector PANEL connector CD/AUX connectors S/PDIF in/out connector GAME/MIDI connector TV-out connector Serial (COM2) connector Front panel audio connector
Expansion slots Storage Graphics Audio LAN Hardware monitoring Rear panel ports

Internal connectors

(continued next page)
BIOS features Industry standard Manageability Support CD contents 4 Mb Flash ROM, AMI BIOS, ACPI, DMI2.0, WfM2.0, Green, PnP, TCAV, SMBIOS 2.3 ASUS EZ Flash, ASUS MyLogo2 PCI 2.2, USB 2.0 DMI 2.0, WOL by PME, WOR by PME, WO_USB, WO_KB/MS Device drivers ASUS PC Probe ASUS Update ASUS Screen Saver Adobe Acrobat Reader Anti-Virus Utility ASUS A7N8X-VM/400 series support CD UltraDMA133 cable FDD cable I/O shield User guide Micro-ATX form factor: 9.6 in x 9.6 in

Accessories

Form Factor
* Specifications are subject to change without notice.

Chapter 1

This chapter describes the features of the motherboard. It includes brief descriptions of the motherboard components, and illustrations of the layout, jumper settings, and connectors.

Product introduction

Welcome!
Thank you for buying the ASUS A7N8X-VM/400 motherboard! The ASUS A7N8X-VM/400 motherboard comes with the most advanced technologies to deliver maximum performance for Socket A processors. This motherboard is packed with value-added features for guaranteed consumer satisfaction. The following sections provide important technical information about the motherboard for future upgrades or system reconfiguration. Before you start installing the motherboard and hardware devices on it, check the items in your package with the list below.

Package contents

ASUS A7N8X-VM/400 motherboard Micro-ATX form factor: 9.6 in x 9.6 in ASUS A7N8X-VM/400 series support CD 40-pin 80-conductor ribbon cable for UltraDMA133 IDE drives Ribbon cable for a 3.5-inch floppy drive Bag of extra jumper caps I/O shield User guide
Check your ASUS A7N8X-VM/400 package for the following items.

Special features

400 MHz FSB support
The motherboard comes with a Socket 462 that supports the latest 400 MHz FSB AMD Athlon XP processor. This feature is guaranteed to give you a powerful and efficient computer platform.
Dual-channel DDR memory support
With the 128-bit Twinbank DDR memory architecture, the motherboard doubles the DDR333 bandwidth thus eliminating system bottlenecks. The motherboard is capable of performing at peak bandwidth of up to 5.4 GB/s assuring you of fast, reliable computing solution. See details on page 1-11.

AGP 8X support

AGP 8X (AGP 3.0) is the next generation VGA interface specification that enables enhanced graphics performance with high bandwidth speeds of up to 2.12 GB/s. See details on page 1-13.
Integrated GeForce4 MX GPU
This motherboard is equipped with an integrated GeForce MX GPU, a second-generation mainstream graphics processing unit designed to deliver the best graphics experience with its high texture content and scene complexity capabilities. See details on page 2-13.

ASUS MyLogo2

The ASUS MyLogo2 allows you to personalize and add style to your system with customizable boot logos. See pages 2-22 and 3-5 for details.

ASUS C.O.P.

The ASUS C.O.P. (CPU Overheating Protection) is a hardware protection circuit that automatically shuts down the system power before temperatures go high enough to permanently damage the CPU.

ASUS EZ Flash

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 details on page 2-5.

Digital video output support
The DVO interface feature of this motherboard allows you to enjoy simultaneous digital display and TV output with the separately purchased ASUS AGP-NV-DVI and ASUS AV/S TV-out cards. See details on pages 1-13, 1-20, and 2-14.
ASUS A7N8X-VM/400 motherboard user guide

Motherboard components

Before you install the motherboard, learn about its major components and available features to facilitate the installation and future upgrades. Refer to the succeeding pages for the component descriptions.
Onboard LED. This onboard LED lights up if there is a standby power on the motherboard. This LED acts as a reminder to turn off the system power before plugging or unplugging devices. ATX power connector. This standard 20-pin connector connects to an ATX 12V power supply. The power supply must have at least 1A on the +5V standby lead (+5VSB). CPU socket. This is a Zero Insertion Force (ZIF) socket for AMD Athlon XP processors. Northbridge controller. The NVIDIA nForce2 IGP Northbridge controller chip supports a 64/128-bit DDR memory controller and up to 2GB of 333/266/200MHz DDR memory. The Northbridge controller is equipped with a maximum 128 MB integrated graphics UMA share memory for the onboard VGA. DDR DIMM sockets. Two Double Data Rate Dual Inline Memory Module (DDR DIMM) sockets are available for up to 2 GB of DDR SDRAM. This memory technology supplies data transfer rates up to 5.4 GB/s for 333MHz DDR SDRAM. IDE connectors. These dual-channel bus master IDE connectors support up to four UltraDMA133, PIO Modes 0-4 IDE devices. Both the primary (blue) and secondary (black) connectors are slotted to prevent incorrect insertion of the IDE cable. Floppy disk connector. This connector is for the provided FDD cable for the floppy disk drive. One side of the connector is slotted to prevent incorrect insertion of the FDD cable. Flash ROM. This 4 Mb LPC chip contains the programmable BIOS program. Super I/O chipset. ITE IT8712F-A offers support for a variety of I/O functions. Provides two high-speed UART compatible serial ports, and a parallel port with EPP and ECP capabilities. The Super I/O controller supports a floppy disk drive, PS/2 keyboard, and PS/2 mouse. Southbridge controller. This motherboard comes with the brand new NVIDIA nForce2 MCP integrated peripheral Southbridge controller. This controller communicates at 800 MB/s with the Northbridge chip for maximum bandwith required to support PCI, USB, and Fast Ethernet devices. The controller also supports standard UltraDMA133 and has separate data paths for each IDE channel. AGP slot. The Accelerated Graphics Port (AGP) slot supports 1.5 V AGP 8X/4X mode graphics cards for 3D graphics applications. The AGP slot also supports digital visual interface (DVI) cards for digital display on LCD monitors and projectors.
Audio CODEC. The Realtek ALC650 6-channel Audio CODEC is AC97-compliant onboard audio solution for PC multimedia systems. PCI slots. These 32-bit PCI 2.2 expansion slots support bus master PCI cards like SCSI and LAN cards. LAN controller. The Realtek 8201BL LAN PHY Fast Ethernet controller allows connection to a Local Area Network (LAN) through a network hub. PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse. Parallel port. This 25-pin port connects a parallel printer or a scanner. LAN (RJ-45) port. Using the NVMAC in the Southbridge controller and the Realtek 8201BL LAN PHY, this port allows connection to a Local Area Network (LAN) through a network hub. Line In port (light blue). This port connects a tape player or other audio sources. Line Out port (lime). This port connects a headphone or a speaker. Microphone port (pink). This port connects a microphone. USB 1 & 2 ports. These two 4-pin Universal Serial Bus 2.0/1.1 ports are available for connecting USB devices such as mouse or PDA. VGA port. This 15-pin VGA port connects a VGA monitor. Serial port (COM1). This port connects a serial mouse or other serial devices. USB 3 & 4 ports. These two 4-pin Universal Serial Bus 2.0/1.1 ports are available for connecting USB devices such as mouse or PDA. PS/2 keyboard port. This purple 6-pin connector is for a PS/2 keyboard.

T: Mouse B: Keyboard

Motherboard layout

24.5cm (9.64in)

USB3 USB4
DDR DIMM2 (64/128 bit, 184-pin module)

PARALLEL PORT

PWR_LED1
DDR DIMM3 (64/128 bit, 184-pin module)

FLOPPY1 SEC_IDE PRI_IDE

CR2032 3V Lithium Cell CMOS Power

USBPW34

Socket 462

CPU_FAN1

USBPW12

Bottom:

ATX Power Connector

nVidia

nForce2 IGP

USB1 RJ-45 USB2

Top:Line In Center:Line Out Below:Mic In

CHA_FAN

A7N8X-VM
Accelerated Graphics Port (AGP8X1)

Realtek RTL8201

Super I/O

FPAUDIO SPDIF1

PCI 2 PCI 3
CLRTC1 CHASSIS1 COM2 USBPW56 GAME1 USB56

4Mb BIOS

Audio Codec

PANEL1

Motherboard installation
Unplug the power cord before installing the motherboard. Failure to do so may cause you physical injury and damage to motherboard components.
This motherboard uses the Micro ATX form factor.
1.6.1 Placement direction
When installing the motherboard, make sure that you place it into the chassis in the correct orientation. The edge with the external ports goes to the rear part of the chassis as indicated in the image below.

1.6.2 Screw holes

Place eight (8) screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not overtighten the screws! Doing so may damage the motherboard.
Place this side towards the rear of the chassis

Before you proceed

Take note of the following precautions before you install motherboard components or change any motherboard settings. 1. Unplug the power cord from the wall socket before touching any component. 2. Use a grounded wrist strap or touch a safely grounded object or to a metal object, such as the power supply case, before handling components to avoid damaging them due to static electricity. 3. Avoid touching the ICs on components. 4. Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that came with the component. 5. Before you install or remove any component, ensure that the ATX power supply is switched off or the power cord is detached from the power supply. Failure to do so may cause severe damage to the motherboard, peripherals, and/or components.

The motherboard has three PCI and one Accelerated Graphics Port (AGP) slots. The following sections describe the slots and the expansion cards that they support.
1.10.1 Configuring an expansion card
Some expansion cards need an IRQ to operate. Generally, an IRQ must be exclusively assigned to one function at a time. In a standard design configuration, 16 IRQs are available but most are already in use. Normally, six IRQs are free for expansion cards. Sometimes IRQs are shared by more than one function; in this case, IRQ assignments are swapped automatically or adjusted through the BIOS Setup.
Standard Interrupt Assignments
IRQ 2 3* 4* 5* 6 7* 8 9* 10* 11* 12* 13 14* 15* Standard Function System Timer Keyboard Controller Programmable Interrupt Controller USB Universal Host Controller Communications Port (COM1) Onboard Audio Standard Floppy Disk Controller Printer Port (LPT1) System CMOS/Real Time Clock Onboard LAN USB Universal Host Controller Onboard VGA PS/2 Compatible Mouse Port Numeric Data Processor Ultra ATA Controller Secondary Ultra ATA Controller
*These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
PCI slot 1 PCI slot 2 PCI slot 3 AGP slot A used B used C used D used

1.10.2 AGP slot

This motherboard has an AGP slot that supports +1.5V AGP 8X cards. Note the notches on the card golden fingers to ensure that they fit the AGP slot on your motherboard. The AGP slot also supports Digital Video Output (DVO) interface cards (AGP-NV-DVI) for digital display on new-generation LCD monitors and projectors.
AGP Card without Retention Notch

ASUS AGP-NV-DVI

A7N8X-VM/400 Accelerated Graphics Port (AGP)
The ASUS AGP-NV-DVI card is purchased separately.

1.10.3 PCI slots

Three 32-bit PCI slots are available on the motherboard. The slots support PCI cards such as LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. This figure shows a typical PCI card installed into a slot.

Jumpers

This section describes and illustrates the jumpers on the motherboard. 1. USB device wake-up (3-pin USBPW12, USBPW34, USBPW56) 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 sleep mode (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). Both jumpers are set to pins 1-2 (+5V) by default because not all computers have the appropriate power supply to support this feature. The USBPW12 jumper is for the rear USB port. USBPW34 and USBPW56 are for the internal USB header that you can connect to front USB ports. This feature requires a power supply that can provide at least 2A on the +5VSB lead when these jumpers are set to +5VSB. Otherwise, the system does not power up. The total current consumed must NOT exceed the power supply capability (+5VSB) whether under normal condition or in sleep mode.

+5V (Default) +5VSB

+5V (Default) 1 2

USBPW56

A7N8X-VM/400 USB Device Wake Up

+5V (Default)

2. Clear RTC RAM (CLRTC1) This jumper clears the Real Time Clock (RTC) RAM of date, time and system setup parameters in CMOS. The RAM data in CMOS is powered by the onboard button battery cell. To erase the RTC RAM: 1. Turn OFF the computer and unplug the power cord. 2. Remove the battery. 3. Move the jumper caps from [1-2] to [2-3] momentarily. Replace the jumper cap to the original position, [1-2]. 4. Re-install the battery. 5. Plug the power cord and turn ON the computer. 6. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

CLRTC1

Normal (Default) Clear CMOS
A7N8X-VM/400 Clear RTC RAM

1.12 Connectors

This section describes and illustrates the connectors on the motherboard. 1. IDE connectors (40-1 pin PRI_IDE, SEC_IDE) This connector supports the provided UltraDMA133 IDE cable. Connect the cables blue connector to the primary (recommended) or secondary IDE connector, then connect the gray connector to the UltraDMA133 master device (hard disk drive) and the black connector to the UltraDMA133 slave device (hard disk drive). Pin 20 on each IDE connector is removed to match the covered hole on the UltraDMA cable connector. This prevents incorrect orientation when you connect the cables. For UltraDMA133 IDE devices, use a 40-pin 80-conductor cable.

SEC_IDE

NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1.
A7N8X-VM/400 IDE Connectors
2. Floppy disk drive connector (34-1 pin FLOPPY1) This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using cable connectors with a closed pin 5 slot.)

FLOPPY1

NOTE: Orient the red markings on the floppy ribbon cable to PIN 1
A7N8X-VM/400 Floppy Disk Drive Connector

PRI_IDE

3. ATX power connectors (20-pin ATXPWR1) These connectors connect to an ATX 12 V 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 the power plug firmly until the connectors fit.

ATXPWR1

+12.0VDC +5VSB PWR_OK COM +5.0VDC COM +5.0VDC COM +3.3VDC +3.3VDC +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.3VDC
A7N8X-VM/400 ATX Power Connector
If you will need to replace the power supply in the future, make sure that your new ATX 12 V power supply can provide 8 A on the +12 V lead and at least 1 A on the +5-volt standby lead (+5VSB). The minimum recommended wattage is 230W, or 300W for a fullyconfigured system. When the power supply is inadequate, the system may become unstable and may experience difficulty powering. 4. USB header (10-1 pin USB56) If the USB ports on the rear panel are inadequate, a USB connector is available for two additional USB ports. Connect one end the USB/GAME port module cable to this connector, then mount the USB/GAME port module to an open slot in the chassis.

BIOS information

Managing and updating your BIOS
The following utilities allow you to manage and update the motherboard Basic Input/Output System (BIOS) setup. 1. AFUDOS (Updates the BIOS in DOS mode using a bootable floppy disk.) 2. ASUS EZ Flash (Updates the BIOS using a floppy disk during POST.) 3. ASUS Update (Updates the BIOS in Windows environment. See Chapter 3 for details.) Refer to the corresponding section for each utility.

Important notes

It is recommended that you save a copy of the original motherboard BIOS file to a bootable floppy disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the AFUDOS or the ASUS Update utilities. A working BIOS file for this motherboard is in the support CD. Use this file only when you do not have a copy of the original motherboard BIOS file in a floppy disk. Visit the ASUS website and download the latest BIOS file for this motherboard using the ASUS Update utility.
2.1.1 Creating a bootable floppy disk
1. Do either one of the following to create a bootable floppy disk. DOS environment Insert a 1.44 MB floppy disk into the drive. At the DOS prompt, type: format A:/S then press <Enter>. Windows 98SE/ME environment a. From your Windows desktop, click on Start, point to Settings, then click on Control Panel. b. Double-click on Add/Remove Programs icon from the Control Panel window. c. Click on the Startup Disk tab, then on Create Disk. button. d. Insert a 1.44 MB floppy disk when prompted. Follow the succeeding screen instructions to complete the process. 2. Copy the original (or the latest) motherboard BIOS to the bootable floppy disk.
2.1.2 Using AFUDOS to copy the current BIOS
The AFUDOS.EXE utility can also be used to copy the current system BIOS settings to a floppy or hard disk. The copy can be used as a backup in case the system BIOS fails or gets corrupted. 1. At the DOS prompt, type the command line: afudos /o<filename>, then press <Enter>. The filename can be any user provided filename of not more than eight (8) alpha-numeric characters for the main filename and three (3) alpha-numeric characters for the extension name. The BIOS information on the screen is for reference only. What you see on your screen may not be exactly the same as shown.
Main filename Extension name
A:\>afudos /oMYBIOS03.rom AMI Firmware Update Utility - Version 1.10 Copyright (C) 2002 American Megatrends, Inc. All rights reserved. Reading flash.. 0x0008CC00 (9%)
2. The utility will copy the current system BIOS by default to the floppy disk. Make sure that the floppy disk is not write-protected and have enough space (at least 600 KB) to store the file.
A:\>afudos /oMYBIOS03.rom AMI Firmware Update Utility - Version 1.10 Copyright (C) 2002 American Megatrends, Inc. All rights reserved. Reading flash.. done A:\>
When the BIOS copy process is complete, the utility returns to the DOS prompt.

User recovery requested. Starting BIOS recovery. Checking for floppy.
If there is no floppy disk found in the drive, the error message Floppy not found! appears. If the correct BIOS file is not found in the floppy disk, the error message A7NVM400.ROM not found! is displayed. Make sure to rename the downloaded BIOS file as A7NVM400.ROM.
4. Insert the floppy disk that contains the BIOS file. If all the necessary files are found in the floppy disk, EZ Flash performs the BIOS update process and automatically reboots the system when done. DO NOT shutdown or reset the system while updating the BIOS! Doing so may cause system boot failure!
User recovery requested. Starting BIOS recovery. Checking for floppy. Floppy found! Reading file a7nvm400.rom. Completed. Start flashing. Flashed successfully. Rebooting.

2.1.5 ASUS Update

The ASUS Update is a utility that allows you to update the motherboard BIOS in Windows environment. This utility is available in the support CD that comes with the motherboard package. ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP). To install ASUS Update: 1. Place the support CD to the optical drive. The Drivers menu appears. 2. Click the Utilities tab, then click Install ASUS Update VX.XX.XX. See page 3-3 for the Utilities menu screen. The ASUS Update utility is copied into your system. To update the BIOS using the ASUS Update: 1. Launch the utility from the Windows desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update initial screen appears. 2. Select your desired update method, then click Next.
3. If you selected updating/ downloading from the Internet, select the ASUS FTP site nearest you to avoid network traffic, or choose Auto Select. Click Next.
4. From the FTP site, select the BIOS version that you wish to download. Click Next. 5. Follow the instructions on the succeeding screens to complete the update process.
If you selected the option to update the BIOS from a file, a window pops up prompting you to locate the file. Select the file, click Save, then follow the screen instructions to complete the update process.

BIOS Setup program

Use the BIOS Setup program when you are installing a motherboard, reconfiguring your system, or prompted to Run Setup. This section explains how to configure your system using this utility. Even if you are not prompted to use the Setup program, you may want to change the configuration of your computer in the future. For example, you may want to enable the security password feature or make changes to the power management settings. This requires you to reconfigure your system using the BIOS Setup program so that the computer can recognize these changes and record them in the CMOS RAM of the Flash ROM. The Flash ROM on the motherboard stores the Setup utility. When you start up the computer, the system provides you with the opportunity to run this program. Press <Delete> during the Power-On Self Test (POST) to enter the Setup utility, otherwise, POST continues with its test routines. The Setup program is designed to make it as easy to use as possible. It is a menudriven program, which means you can scroll through the various sub-menus and make your selections among the predetermined choices.

Because the BIOS software is constantly being updated, the following BIOS setup screens and descriptions are for reference purposes only, and may not exactly match what you see on your screen.

2.2.1 BIOS menu bar

The top of the screen has a menu bar with the following selections: MAIN ADVANCED POWER BOOT EXIT Use this menu to make changes to the basic system configuration. Use this menu to enable and make changes to the advanced features. Use this menu to configure and enable Power Management features. Use this menu to configure the default system device used to locate and load the Operating System. Use this menu to exit the current menu or to exit the Setup program.
To access the menu bar items, press the right or left arrow key on the keyboard until the desired item is highlighted.

2.2.2 Legend bar

At the bottom of the Setup screen is a legend bar. The keys in the legend bar allow you to navigate through the various setup menus. The following table lists the keys found in the legend bar with their corresponding functions.
Navigation Key(s) <F1> or <Alt + H> <Esc> Left or Right arrow Up or Down arrow - (minus key) + (plus key) or spacebar <Enter> <Home> or <PgUp> <End> or <PgDn> <F5> <F10> Function Description Displays the General Help screen from anywhere in the BIOS Setup Jumps to the Exit menu or returns to the main menu from a sub-menu Selects the menu item to the left or right Moves the highlight up or down between fields Scrolls backward through the values for the highlighted field Scrolls forward through the values for the highlighted field Brings up a selection menu for the highlighted field Moves the cursor to the first field Moves the cursor to the last field Resets the current screen to its Setup Defaults Saves changes and exits Setup

General help

In addition to the Item Specific Help window, the BIOS setup program also provides a General Help screen. You may launch this screen from any menu by simply pressing <F1> or the <Alt> + <H> combination. The General Help screen lists the legend keys and their corresponding functions.
Saving changes and exiting the Setup program
See 2.7 Exit Menu for detailed information on saving changes and exiting the setup program. When a scroll bar appears to the right of a help window, it indicates that there is more information to be displayed that will not fit in the window. Use <PgUp> and <PgDn> or the up and down arrow keys to scroll through the entire help document. Press <Home> to display the first page, press <End> to go to the last page. To exit the help window, press <Enter> or <Esc>. The BIOS information on the screen is for reference only. What you see on your screen may not be exactly the same as shown.

Leave this field to the default setting [64] for best performance and stability. Configuration options: [32] [64] [96] [128] [160] [192] [224] [248]
Allocate IRQ to PCI VGA [Yes]
Select [Yes] to automatically assign IRQ to PCI VGA card if card requests IRQ. If set to [No], no IRQ is assigned even the card requests an IRQ. Configuration options: [Yes] [No]
Palette Snooping [Disabled]
Some non-standard VGA cards, such as graphics accelerators or MPEG video cards, may not show colors properly. Setting this option to [Enabled] corrects this problem. If you are using a standard VGA card, leave this option the default setting [Disabled]. Configuration options: [Disabled] [Enabled]
PCI IDE BusMaster [Enabled]
When this option is [Enabled], the BIOS uses the PCI bus mastering to read and write to IDE drives. Configuration options: [Enabled] [Disabled]
Offboard PCI/ISA IDE Card [Auto]
Allows the setting of the proper slot of installed PCI IDE cards. Some PCI IDE cards require this to be set to the PCI slot number that is holding the card. Configuration options: [Auto] [PCI Slot1] [PCI Slot2] [PCI Slot3] [PCI Slot4] [PCI Slot5] [PCI Slot6]
IRQ3, IRQ4, IRQ5, IRQ7, IRQ9, IRQ10, IRQ11, IRQ14, IRQ15 [Available]
Specifies whether an IRQ is reserved or available for use by Legacy ISA devices. Configuration options: [Available] [Reserved]
DMA Channel 0, 1, 3, 5, 6, 7 [Available]
Specifies whether a DMA Channel is reserved or available for use by Legacy ISA devices. Configuration options: [Available] [Reserved]
Reserved Memory Size [Disabled]
Specifies the reserved memory block for use of legacy ISA devices. Configuration options: [Disabled] [16k] [32k] [64k]

Power menu

The Power menu allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk after a period of inactivity.
Suspend Mode [S1 & S3 (STR)]
Allows the BIOS to select the ACPI state used for System Suspend. Configuration options: [S1 & S3 (STR)] [S1 (POS) only]

2.5.1 Power Up Control

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. When set to Last State, the system goes into either off or on state whatever was the system state before the AC power loss. Configuration options: [Power Off] [Power On] [Last State]
Resume on Keyboard [Disabled]

Security Settings Supervisor Password User Password Change Supervisor Password User Access Level Clear User Password Password Check Not Installed Not Installed [Full Access] [Setup]
User Access Level (Full Access]
This item allows you to select the access restriction to the Setup items. Configuration options: [No Access] [View Only] [Limited] [Full Access] No Access prevents user access to the Setup utility. View Only allows access but does not allow change to any field. Limited allows change to only selected fields, such as Date and Time. Full Access allows viewing and changing all the fields in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on top of the screen shows the default Not Installed. After you have set a password, this item shows Installed. To set a User Password: 1. Select the Change User Password item and press <Enter>. 2. On the password box that appears, type a password composed of letters and/ or numbers, then press <Enter>. Your password should have at least six characters. 3. Confirm the password when prompted. The message Password Installed appears after you have successfully set your password. The User Password item now shows Installed. To change the user password, follow the same steps as in setting a user password.

Clear User Password

Select this item if you wish to clear the user password.

Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the Setup utility. When set to [Always], BIOS checks for user password both when accessing Setup and booting the system. Configuration options: [Setup] [Always]

Exit menu

When you have made all of your selections from the various menus in the Setup program, save your changes and exit Setup. Select Exit from the menu bar to display the following menu.
Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults
Exit system setup after saving the changes. F10 key can be used for this operation.
Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10> from the legend bar to exit.

Exit & Save Changes

Once you are finished making your selections, choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM. The CMOS RAM is sustained by an onboard backup battery and stays on even when the PC is turned off. When you select this option, a confirmation window appears. Select [Yes] to save changes and exit.
If you attempt to exit the Setup program without saving your changes, the program prompts you with a message asking if you want to save your changes before exiting. Pressing <Enter> saves 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

Allows you to discard the selections you made and restore the previously saved values. After selecting this option, a confirmation appears. Select [Yes] to discard any changes and load the previously saved values.

Load Setup Defaults

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 [Yes] to load default values. Select Exit Saving Changes or make other changes before saving the values to the non-volatile RAM.

Chapter 3

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 98SE/ME/NT/2000/XP as well as Linux RedHat, SuSE, TurboLinux and Caldera operating systems (OS). Always install the latest OS version and corresponding updates so you can maximize the features of your motherboard.
Because motherboard settings and hardware options vary, the support CD screens presented in this chapter are for general reference only. Refer to your OS documentation for more information.

Support CD information

The support CD that came with the motherboard contains useful software and several utility drivers that enhance the motherboard features.

 

Technical specifications

General
Product TypeMotherboard
Form FactorATX
Width12 in
Depth9.6 in
Compatible ProcessorsAthlon, Duron, Athlon XP
Processor SocketSocket A
Chipset TypeNVIDIA nForce2 SPP
Max Bus Speed333 MHz
BIOS TypeAward
Storage ControllerATA-133
Processor
Installed Qty (Max Supported)0 ( 1 )
Memory
Supported RAM TechnologyDDR SDRAM
Supported RAM (Registered or Buffered)Unbuffered
RAM Installed ( Max )0 MB / 3 GB (max)
Supported RAM SpeedPC2100, PC1600, PC2700, PC3200
RAM FeaturesDual channel memory architecture
Audio
Audio OutputSound card
Signal ProcessorNVIDIA nForce2 MCP
Audio CodecRealtek ALC650
Sound Output Mode5.1 channel surround
Telecom / Networking
NetworkingNetwork adapter - Realtek RTL8201BL - Ethernet, Fast Ethernet
Features
BIOS FeaturesACPI support, DMI 2.0 support
Manual SettingsCPU frequency, processor core voltage, memory voltage
Hardware MonitoringCPU core temperature, CPU fan tachometer, chassis fan tachometer, system voltage, CPU overheating protection, stop CPU fan in suspend mode, CPU core voltage
Sleep / Wake UpKeyboard wake up, suspend to RAM (STR), wake on LAN (WOL), wake on USB port, wake on ring (WOR)
Hardware FeaturesChassis intrusion detection
Expansion / Connectivity
Expansion Slot(s)1 ( 1 ) x AGP Pro ( 1.5 V ) 1 ( 1 ) x processor - Socket A 3 ( 3 ) x memory - DIMM 184-pin 5 ( 5 ) x PCI
Storage InterfacesATA-133 - connector(s): 2 x 40pin IDC
Interfaces4 x Hi-Speed USB - 4 pin USB Type A 1 x network - Ethernet 10Base-T/100Base-TX - RJ-45 1 x parallel - IEEE 1284 (EPP/ECP) - 25 pin D-Sub (DB-25) 2 x serial - RS-232 - 9 pin D-Sub (DB-9) 1 x keyboard - generic - 6 pin mini-DIN (PS/2 style) 1 x mouse - generic - 6 pin mini-DIN (PS/2 style) 2 x audio - line-in - 4 pin MPC 1 x audio - TAD - 4 pin MPC 1 x audio - line-in - mini-phone stereo 3.5 mm 1 x audio - line-out - mini-phone stereo 3.5 mm 1 x microphone - input - mini-phone 3.5 mm 1 x storage - floppy interface - 34 pin IDC
Additional Connectors (Optional)2 x Hi-Speed USB
Miscellaneous
Cables Included2 x IDE cable 1 x floppy cable 1 x serial panel
Software IncludedDrivers & utilities, ASUS PC Probe, PC-cillin 2002, ASUS Live Update
Compliant StandardsPlug and Play
Manufacturer Warranty
Service & Support3 years warranty
Service & Support DetailsLimited warranty - 3 years
Universal Product Identifiers
BrandASUSTeK COMPUTER
Part NumbersA7N8X, A7N8X-UAY

 

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