Asus A7N8X X User Manual

A7N8X-X  
User Guide  
Contents  
Notices ............................................................................................v  
Safety information .......................................................................... vi  
ASUS contact information ............................................................ viii  
A7N8X-X specifications summary .................................................. ix  
Chapter 1: Motherboard Info  
1.1 Welcome! ........................................................................... 1-2  
1.2 Package contents ............................................................... 1-2  
1.3 Motherboard components .................................................. 1-3  
1.4 Motherboard layout ............................................................ 1-6  
1.5 Before you proceed ............................................................ 1-7  
1.6 Central Processing Unit (CPU)........................................... 1-7  
1.7 System memory ................................................................. 1-8  
1.7.1 Installing a DIMM ................................................... 1-8  
1.8 Expansion slots .................................................................. 1-8  
1.8.1 Configuring an expansion card .............................. 1-8  
1.8.2 Standard Interrupt Assignments ............................ 1-9  
1.8.3 AGP slot ................................................................. 1-9  
1.9 Jumpers............................................................................ 1-10  
1.10 Connectors ....................................................................... 1-12  
Chapter 2: BIOS Information  
2.1 Managing and updating your BIOS .................................... 2-2  
2.1.1 Using the computer system for the first time ......... 2-2  
2.1.2 Updating BIOS procedures .................................... 2-3  
2.2 BIOS Setup program .......................................................... 2-6  
2.2.1 BIOS menu bar ...................................................... 2-7  
2.2.2 Legend bar............................................................. 2-7  
2.3 Main Menu.......................................................................... 2-9  
2.3.1 Primary Master/Slave .......................................... 2-10  
2.3.2 Secondary Master/Slave...................................... 2-12  
2.4 Advanced Menu ............................................................... 2-13  
2.4.1 Advanced BIOS Features .................................... 2-14  
2.4.2 Advanced Chipset Features ................................ 2-15  
iii  
Contents  
2.4.3 Integrated Peripherals ......................................... 2-18  
2.4.4 Power Management Setup .................................. 2-20  
2.4.5 PnP / PCI Configurations ..................................... 2-22  
2.5 Security Menu .................................................................. 2-23  
2.6 Hardware Monitor Menu ................................................... 2-24  
2.7 Exit Menu ......................................................................... 2-26  
Chapter 3: Starting Up  
3.1 Install an operating system................................................. 3-2  
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 menu ......................................................... 3-3  
3.2.4 ASUS Contact Information ................................................. 3-4  
iv  
Notices  
Federal Communications Commission Statement  
This device complies with Part 15 of the FCC Rules. Operation is subject to  
the following two conditions:  
• This device may not cause harmful interference, and  
• This device must accept any interference received including interference  
that may cause undesired operation.  
This equipment has been tested and found to comply with the limits for a  
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits  
are designed to provide reasonable protection against harmful interference  
in a residential installation. This equipment generates, uses and can radiate  
radio frequency energy and, if not installed and used in accordance with  
manufacturer’s instructions, may cause harmful interference to radio  
communications. However, there is no guarantee that interference will not  
occur in a particular installation. If this equipment does cause harmful  
interference to radio or television reception, which can be determined by  
turning the equipment off and on, the user is encouraged to try to correct the  
interference by one or more of the following measures:  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and receiver.  
• Connect the equipment to an outlet on a circuit different from that to  
which the receiver is connected.  
• Consult the dealer or an experienced radio/TV technician for help.  
The use of shielded cables for connection of the monitor to the  
graphics card is required to assure compliance with FCC regulations.  
Changes or modifications to this unit not expressly approved by the  
party responsible for compliance could void the user’s authority to  
operate this equipment.  
Canadian Department of Communications Statement  
This digital apparatus does not exceed the Class B limits for radio noise  
emissions from digital apparatus set out in the Radio Interference  
Regulations of the Canadian Department of Communications.  
This class B digital apparatus complies with Canadian ICES-003.  
v
Safety information  
Electrical safety  
To prevent electrical shock hazard, disconnect the power cable from  
the electrical outlet before relocating the system.  
• When adding or removing devices to or from the system, ensure that  
the power cables for the devices are unplugged before the signal  
cables are connected. If possible, disconnect all power cables from the  
existing system before you add a device.  
• Before connecting or removing signal cables from the motherboard,  
ensure that all power cables are unplugged.  
• Seek professional assistance before using an adpater or extension  
cord. These devices could interrupt the grounding circuit.  
• Make sure that your power supply is set to the correct voltage in your  
area. If you are not sure about the voltage of the electrical outlet you  
are using, contact your local power company.  
• If the power supply is broken, do not try to fix it by yourself. Contact a  
qualified service technician or your retailer.  
Operation safety  
• Before installing the motherboard and adding devices on it, carefully  
read all the manuals that came with the package.  
• Before using the product, make sure all cables are correctly connected  
and the power cables are not damaged. If you detect any damage,  
contact your dealer immediately.  
To avoid short circuits, keep paper clips, screws, and staples away from  
connectors, slots, sockets and circuitry.  
• Avoid dust, humidity, and temperature extremes. Do not place the  
product in any area where it may become wet.  
• Place the product on a stable surface.  
• If you encounter technical problems with the product, contact a  
qualified service technician or your retailer.  
vi  
Conventions used in this guide  
To make sure that you perform certain tasks properly, take note of the  
following symbols used throughout this manual.  
WARNING/DANGER: Information to prevent injury to yourself  
when trying to complete a task.  
CAUTION: Information to prevent damage to the components  
when trying to complete a task.  
IMPORTANT: Information that you MUST follow to complete a  
task.  
NOTE: Tips and additional information to aid in completing a task.  
Where to find more information  
Refer to the following sources for additional information and for product  
and software updates.  
1. ASUS Websites  
The ASUS websites worldwide provide updated information on ASUS  
hardware and software products. The ASUS websites are listed in the  
ASUS Contact Information on page viii.  
2. Optional Documentation  
Your product package may include optional documentation, such as  
warranty flyers, that may have been added by your dealer. These  
documents are not part of the standard package.  
vii  
ASUS contact information  
ASUSTeK COMPUTER INC. (Asia-Pacific)  
Address:  
150 Li-Te Road, Peitou, Taipei, Taiwan 112  
+886-2-2894-3447  
+886-2-2894-3449  
General Tel:  
General Fax:  
Web Site:  
Technical Support  
MB/Others (Tel):  
Notebook (Tel):  
+886-2-2890-7121 (English)  
+886-2-2890-7122 (English)  
Desktop/Server (Tel): +886-2-2890-7123 (English)  
Support Fax: +886-2-2890-7698  
ASUS COMPUTER INTERNATIONAL (America)  
Address:  
44370 Nobel Drive, Fremont, CA 94538, USA  
+1-502-933-8713  
General Fax:  
General Email:  
Web Site:  
usa.asus.com  
Technical Support  
Support Fax:  
General Support:  
Notebook Support:  
Support Email:  
+1-502-933-8713  
+1-502-995-0883  
+1-510-739-3777 x5110  
ASUS COMPUTER GmbH (Germany and Austria)  
Address:  
Harkortstr. 25, 40880 Ratingen, BRD, Germany  
sales@asuscom.de (for marketing requests only)  
+49-2102-9599-31  
General Email:  
General Fax:  
Web Site:  
Technical Support  
Components:  
+49-2102-9599-0  
Notebook PC:  
Support Fax:  
+49-2102-9599-10  
+49-2102-9599-11  
Support Email:  
ASUSTeK COMPUTER (Middle East and North Africa)  
Address:  
P.O. Box 64133, Dubai, U.A.E.  
+9714-283-1774  
+9714-283-1775  
General Tel:  
General Fax:  
Web Site:  
viii  
A7N8X-X specifications summary  
CPU  
Socket A for AMD Duron™/Athlon™/Athlon™ XP 3200+ or  
higher  
400/333 MHz FSB Support  
Chipset  
Northbridge: NVIDIA® nForce2 400  
Southbridge: NVIDIA® nForce2 MCP  
Front Side Bus (FSB)  
Memory  
400/333/266/200Mhz  
3 x 184-pin DDR DIMM Sockets  
Max. 3 GB unbuffered PC3200/2700/2100/1600 non-ECC  
DDR RAM memory.  
(Visit ASUS website for latest qualified DDR400 module list.)  
Expansion slots  
5 x PCI  
1 x AGP 8X (1.5V only)  
IDE  
2 x UltraDMA 133/100/66/33  
Audio  
LAN  
Realtek ALC650 6CH with built-in HP amplifier  
1 Port  
MCP integrated NVIDIA MAC + Realtek 8201BL PHY  
Special Features  
ASUS Q-Fan Technology  
ASUS C.O.P. (CPU Overheating Protection)  
Power Loss Restart  
CPU Throttle  
Support S/PDIF in/out (optional)  
Back Panel I/O Ports  
1 x Parallel  
1 x Serial  
1 x PS/2 Keyboard  
1 x PS/2 Mouse  
1 x RJ45 port  
1 x Audio I/O  
4 x USB 2.0  
Internal I/O  
Connectors  
1 x USB 2.0 connector supports additional 2 USB 2.0 ports  
(optional)  
Game connector (optional)  
CPU/Power/Chassis FAN connectors  
20-pin ATX Power connector  
IDE LED connector, Power LED connector  
Chassis Intrusion, SIR  
Headphone (optional)  
Front MIC (optional)  
CD / AUX / Modem audio in  
Front Panel Audio connector (optional)  
(continued on the next page)  
ix  
A7N8X-X specifications summary  
BIOS features  
2Mb Flash ROM, Award BIOS, TCAV, PnP, DMI2.0, DMI,  
Green  
PCI 2.2, USB 1.1/2.0.  
Industry standard  
Manageability  
DMI 2.0, WOL, WOR, Chassis Intrusion, SM Bus  
Device drivers  
Support CD contents  
ASUS PC Probe  
Trend Microtm PC-cillin 2002 anti-virus software  
ASUS LiveUpdate Utility  
Accessories  
User’s manual  
Support CD  
1 x UltraDMA 133/100/66 cable  
FDD cable  
9-pin COM cable (optional)  
2-port USB/Game port bracket (optional)  
I/O shield  
ATX form factor: 12 in x 9.6 in  
Form Factor  
* Specifications are subject to change without notice.  
x
Chapter 1  
This chapter gives information about the ASUS  
A7N8X-X motherboard that came with the  
system.This chapter includes the motherboard  
layout, jumper settings, and connector locations.  
ASUS A7N8X-X Motherboard  
1-1  
1.1 Welcome!  
Thank you for buying the ASUS® A7N8X-X motherboard!  
The ASUS A7N8X-X motherboard is loaded with the most advanced technologies to  
deliver the maximum performance for socketAprocessors. This motherboard is loaded  
with value-added features for guaranteed consumer satisfaction. Unique ASUS  
features such as ASUS C.O.P., ASUS Q-Fan Technology and more are included to  
ensure the best user experience and value in a motherboard. For future upgrades or  
system reconfiguration, this chapter provides technical information about the  
motherboard.  
Before you start installing the motherboard and hardware devices on it, check the  
items in your package with the list below.  
1.2 Package contents  
Check your ASUS A7N8X-X package for the following items.  
ASUS A7N8X-X motherboard  
ATX form factor: 12 in x 9.6 in  
ASUS A7N8X-X series support CD  
40-pin 80-conductor ribbon cable for UltraDMA/66/100/133 IDE drives  
Ribbon cable for a 3.5-inch floppy drive  
Bag of extra jumper caps  
I/O shield  
User’s Manual  
1-2  
1.3 Motherboard components  
1 2  
3
4 5  
6
7
18  
17  
8
9
16  
15  
10  
11  
14  
13  
12  
19  
20  
21  
22  
23  
24  
28  
27  
26  
25  
ASUS A7N8X-X Motherboard  
1-3  
CPU Sockets. Socket 462 (Socket A) Zero Insertion Force (ZIF) socket for  
the AMD Duron™/Athlon™/Athlon XP™ 3000+ processors.  
1
2
NorthBridge Controller. The NVIDIA® nForce2™ 400 North Bridge  
controller chipset. The controller supports a 64-bit DDR memory controller  
and up to 3 GB of 400/333/266/200MHz DDR memory.  
DDR DIMM Sockets. Equipped with three Double Data Rate Dual Inline  
Memory Module (DDR DIMM) sockets to support up to 3GB of DDR  
DRAM, the newest memory standard with the highest bandwidth and  
lowest latency currently available. This memory technology supplies data  
transfer rates up to 3.2 GB/s for 400MHz DDR SDRAM and 2.7GB/s for  
333MHz DDR SDRAM.  
3
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).  
4
5
6
Floppy Disk connector. This connector connects the provided ribbon  
cable for the floppy disk drive. One side of the connector is slotted to  
prevent incorrect insertion of the floppy disk cable.  
IDE Connectors. These dual-channel bus master IDE connectors support  
up to four Ultra DMA133/100/66, PIO Modes 3 & 4 IDE devices. Both the  
primary(blue) and secondary(black) connectors are slotted to prevent  
incorrect insertion of the IDE ribbon cable.  
Flash ROM. This 2Mb firmware contains the programmable BIOS  
program. (Refer to section “2.1 Managing and updating your BIOS” on  
page 2-2 for more information)  
7
8
South bridge controller. Features the brand new nVidia® nForce2MCP  
integrated peripheral South Bridge controller operates at 800MB/sec to  
communicate with the North Bridge for maximum bandwith required for  
PCI, USB and support for Fast Ethernet devices. The controller supports  
standard UltraDMA133/100/66/33 and separate data paths for each IDE  
channel are built-in for up to two IDE devices. The controller supports six  
USB ports, one LAN port and is PCI rev2.2 compliant.  
Super I/O chipset. ITE IT8708 offers support for a variety of I/O functions.  
Provides two high-speed UART compatible serial ports and one parallel  
port with EPP and ECP capabilities. UART2 can also be directed from  
COM2 to the Infrared Module for wireless connections. The Super I/O  
controller supports a floppy disk drive, PS/2 keyboard, and PS/2 mouse.  
9
COM2 Header. This 9-pin connects to a COM2 port.  
10  
11  
12  
GAME port header. This header connects to a GAME port module.  
ASUS ASIC. This chip performs multiple system functions that include  
hardware and system voltage monitoring among others.  
1-4  
Chapter 1: Motherboard Information  
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.  
13  
14  
PCI slots. These 32-bit PCI 2.2 expansion slots support bus master PCI  
cards like SCSI or LAN cards with 133MB/s maximum output.  
15  
16  
S/PDIF connector. This header connects to the S/PDIF bracket. (optional)  
Audio CODEC. The Realtek 6-channel CODEC is an AC’97 compliant  
audio CODEC designed for PC multimedia systems.  
LAN chip. The MCP integrated NVIDIA® MAC + Realtek 8201BL PHY  
Fast Ethernet controller allows connection to a Local Area Network (LAN)  
through a network hub.  
17  
18  
AGP Slot. This Accelerated Graphics Port (AGP) slot only supports 1.5V  
AGP 8X mode graphics cards for 3D graphical applications.  
PS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.  
19  
20  
Parallel port. This 25-pin port connects a parallel printer, a scanner, or  
other devices.  
RJ-45 port. Using the NVIDIA® LAN 10/100 Mbps fast ethernet controller,  
this port allows connection to a Local Area Network (LAN) through a  
network hub.  
21  
Line In jack. This Line In (light blue) jack connects a tape player or other  
audio sources.  
22  
23  
Line Out jack. This Line Out (lime) jack connects a headphone or a  
speaker.  
Microphone jack. This Mic (pink) jack connects a microphone.  
24  
25  
USB 2.0 ports. These two 4-pin Universal Serial Bus 2.0 (USB 2.0) ports  
are available for connecting USB devices such as a mouse and PDA.  
Serial ports. This port connects to your serial mouse and other serial  
devices.  
26  
27  
28  
USB 2.0 ports. These two 4-pin Universal Serial Bus 2.0 (USB 2.0) ports  
are available for connecting USB devices such as a mouse and PDA.  
PS/2 keyboard port. This purple 6-pin connector is for a PS/2 keyboard.  
ASUS A7N8X-X Motherboard  
1-5  
1.4 Motherboard layout  
24.5cm (9.64in)  
PS/2  
T: Mouse  
B: Keyboard  
CPU_FAN1  
KBPWR1  
Socket 462  
USBPWR_34  
USB3  
USB4  
COM1  
USBPWR_12  
nVidia  
nForce2  
400  
Chipset  
Bottom:  
Top:  
CPU_FSB  
USB1  
RJ-45  
USB2  
Top:Line In  
Center:Line Out  
Below:Mic In  
0
1
2
3
4
5
CHA_FAN1  
Realtek  
RTL8201  
Accelerated Graphics Port (AGP)  
2Mb  
BIOS  
CD1  
FPAUDIO1  
PCI 1  
PCI 2  
nForce2  
MCP  
Chipset  
AUX1  
Audio  
Codec  
Super  
I/O  
SPDIF1  
®
A7N8X-X  
CLRTC1  
CR2032 3V  
Lithium Cell  
CMOS Power  
PCI 3  
PCI 4  
COM2  
USB56  
USBPWR_56  
GAME1  
ASUS  
ASIC  
PWR_LED1  
MODEM1  
with Hardware  
Monitor  
IR_CON1  
PCI 5  
IDELED1  
PWRTMP1  
CHASSIS1  
CTRL_PANEL1  
1-6  
Chapter 1: Motherboard Information  
1.5 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. Hold components by the edges to avoid touching the ICs on them.  
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.  
1.6 Central Processing Unit (CPU)  
The motherboard provides a Socket A (462) for CPU installation. AMD processors  
offer gigahertz speeds to support all the latest computing platforms and applications.  
The A7N8X-X supports AthlonXP processors with “QuantiSpeed” data processing,  
large data caches, 3D enhancements and 400/333/266Mhz bus speeds.  
Do not use processors with core speeds of less than 1GHz on this  
motherboard.  
CPU NOTCH  
TO INNER  
CORNER  
LOCK  
LEVER  
CPU NOTCH  
®
A7N8X-X  
AMD™ CPU  
A7N8X-X Socket 462  
Each AMD CPU has a “marked” corner. This corner is usually indicated with a notch,  
and/or a golden square or triangle. Refer to this indicator while orienting the CPU.  
ASUS A7N8X-X Motherboard  
1-7  
1.7 System memory  
The motherboard has three Double Data Rate (DDR) DIMM sockets that supports  
up to 3GB non-ECC PC3200/2700/2100/1600 DDR..  
104 Pins  
®
A7N8X-X  
80 Pins  
A7N8X-X 184-Pin DDR  
DIMM Sockets  
1. DIMMs with more than 8 devices on each side of the module are  
not supported.  
2. Make sure the memory frequency and bus frequency setting in the  
BIOS are the same or set to [Auto] ensure system stability.  
3. A DDR DIMM is keyed with a notch so that it fits in only one  
direction. DO NOT force a DIMM into a socket to avoid damaging  
the DIMM.  
Vendor List.  
1.7.1 Installing a DIMM  
1. Unlock a DIMM socket by pressing the retaining clips outward.  
2. Align a DIMM on the socket. Make sure the notches on the DIMM exactly match  
the notches in the socket.  
3. Firmly insert the DIMM into the socket until the retaining clips lock into place.  
1.8 Expansion slots  
The A7N8X-X motherboard has six (6) expansion slots. The following sub-sections  
describe the slots and the expansion cards that they support.  
1.8.1 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.  
1-8  
Chapter 1: Motherboard Information  
Normally, 6 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 firmware.  
1.8.2 Standard Interrupt Assignments  
IRQ  
Standard Function  
0
System Timer  
1
Keyboard Controller  
2
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  
External AGP card  
3*  
4*  
5*  
6
7*  
8
9*  
10*  
11*  
12*  
13  
14*  
15*  
PS/2 Compatible Mouse Port  
Numeric Data Processor  
Primary Ultra ATA Controller  
Secondary Ultra ATA Controller  
*These IRQs are usually available for ISA or PCI devices.  
IRQ assignments for this motherboard  
A
shared  
shared  
B
used  
C
used  
D
used  
PCI slot 1  
PCI slot 2  
PCI slot 3  
PCI slot 4  
PCI slot 5  
1.8.3 AGP slot  
This motherboard has an Accelerated Graphics Port (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.  
®
A7N8X-X  
Keyed for 1.5v  
A7N8X-X Accelerated Graphics Port (AGP)  
ASUS A7N8X-X Motherboard  
1-9  
1.9 Jumpers  
This section describes and illustrates the jumpers on the motherboard.  
1.  
USB device wake-up (3-pin USBPWR_12,USBPWR_34,USBPWR_56)  
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 USBPWR_12 and USBPWR_34 jumpers are for the rear USB port.  
USBPWR_56 is for the internal USB header that you can connect to the 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.  
USBPWR_12  
USBPWR_34  
1 2  
2 3  
+5V  
(Default)  
+5VSB  
USBPWR_56  
®
1
2
A7N8X-X  
2
3
+5V  
(Default)  
+5VSB  
A7N8X-X USB Device Wake Up  
2. Central Processing Unit FSB (CPU_FSB)  
This jumper when set to 1-2 pins (default), enable support for Front Side Bus  
400/333/266. When set to pins 2-3, it sets support for FSB 200 only.  
CPU_FSB  
1
2
2
3
®
A7N8X-X  
FSB400/333/266  
(Default)  
FSB200  
A7N8X-X CPU FSB Jumper Setting  
1-10  
Chapter 1: Motherboard Information  
3. Clear RTC RAM (CLRTC1) (optional)  
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 cell battery.  
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  
1 2  
2 3  
®
A7N8X-X  
Normal  
Clear CMOS  
(Default)  
A7N8X-X Clear RTC RAM  
4. Keyboard power (3-pin KBPWR1)  
This jumper allows you to enable or disable the keyboard wake-up feature. Set  
this jumper to pins 2-3 (+5VSB) if you wish to wake up the computer when you  
press a key on the keyboard (the default value is [Disabled]). This feature  
requires an ATX power supply that can supply at least 1A on the +5VSB lead,  
and a corresponding setting in the BIOS (see section 2.5.1 Power Up Control).  
KBPWR1  
1 2  
2 3  
+5V  
(Default)  
+5VSB  
®
A7N8X-X  
A7N8X-X Keyboard Power Setting  
ASUS A7N8X-X Motherboard  
1-11  
1.10 Connectors  
This section describes and illustrates the connectors on the motherboard.  
1.  
IDE connectors (40-1 pin PRI_IDE1, SEC_IDE1)  
This connector supports the provided UltraDMA/133/100/66 IDE hard disk  
ribbon cable. Connect the cable’s blue connector to the primary  
(recommended) or secondary IDE connector, then connect the gray  
connector to the UltraDMA/133/100/66 slave device (hard disk drive) and the  
black connector to the UltraDMA/133/100/66 master device. It is  
recommended that you connect non-UltraDMA/133/100/66 devices to the  
secondary IDE connector. If you install two hard disks, you must configure  
the second drive as a slave device by setting its jumper accordingly. Refer to  
the hard disk documentation for the jumper settings. BIOS supports specific  
device bootup. If you have more than two UltraDMA/133/100/66 devices,  
purchase another UltraDMA/133/100/66 cable. You may configure two hard  
disks to be both master devices with two ribbon cables – one for the primary  
IDE connector and another for the secondary IDE connector.  
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 UltraDMA/133/100/66 IDE devices, use an 80-conductor IDE  
cable.  
NOTE: Orient the red markings  
(usually zigzag) on the IDE  
ribbon cable to PIN 1.  
®
A7N8X-X  
PIN 1  
A7N8X-X IDE Connectors  
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Chapter 1: Motherboard Information  
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 ribbon cables with pin 5 plug).  
FLOPPY1  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1  
®
A7N8X-X  
PIN 1  
A7N8X-X Floppy Disk Drive Connector  
3.  
ATX power connectors (20-pin ATXPWR1)  
These connectors connect to an ATX 12V 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.  
ATXPWR1  
+3.3VDC  
-12.0VDC  
COM  
+3.3VDC  
+3.3VDC  
COM  
PS_ON#  
COM  
+5.0VDC  
COM  
COM  
COM  
+5.0VDC  
COM  
-5.0VDC  
+5.0VDC  
+5.0VDC  
PWR_OK  
+5VSB  
+12.0VDC  
®
A7N8X-X  
A7N8X-X ATX Power Connector  
If you will need to replace the power supply in the future, make sure  
that your new ATX 12V power supply can provide 8A on the +12V lead  
and at least 1A on the +5-volt standby lead (+5VSB). The minimum  
recommended wattage is 230W, or 300W for a fully configured system.  
The system may become unstable and may experience difficulty  
powering up if the power supply is inadequate.  
ASUS A7N8X-X Motherboard  
1-13  
4.  
USB header (10-1 pin USB56) (optional)  
If the USB 2.0 port connectors on the back panel are inadequate, one USB  
header is available for four additional USB port connectors. Connect a 2-port  
USB connector set to a USB header and mount the USB bracket to an open  
slot in the chassis.  
®
A7N8X-X  
USB56  
1
A7N8X-X USB 2.0 Header  
5. GAME/MIDI connector (16-1 pin GAME1) (optional)  
This connector supports a GAME/MIDI module. If your package came with the  
optional USB 2.0/GAME module, connect the GAME/MIDI cable to this  
connector. The GAME/MIDI port on the module connects a joystick or a game  
pad for playing games, and MIDI devices for playing or editing audio files.  
®
A7N8X-X  
GAME1  
A7N8X-X Game Connector  
1-14  
Chapter 1: Motherboard Information  
6.  
CPU and Chassis Fan Connectors  
(3-pin CPU_FAN1, CHA_FAN1)  
The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or a  
total of 1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan  
connectors on the motherboard, making sure that the black wire of each cable  
matches the ground pin of the connector.  
CPU_FAN1  
Rotation  
+12V  
GND  
CHA_FAN1  
®
A7N8X-X  
A7N8X-X 12-Volt Cooling Fan Power  
Do not forget to connect the fan cables to the fan connectors. Lack of  
sufficient air flow within the system may damage the motherboard  
components. These are not jumpers! DO NOT place jumper caps on  
the fan connectors!  
7. Chassis intrusion connector (4-1 pin CHASSIS1)  
This lead is for a chassis designed with intrusion detection feature. This  
requires an external detection mechanism such as a chassis intrusion sensor  
or microswitch. When you remove any chassis component, the sensor  
triggers and sends a high-level signal to this lead to record a chassis  
intrusion event.  
By default, the pins labeled “Chassis Signal” and “Ground” are shorted with a  
jumper cap. If you wish to use the chassis intrusion detection feature, remove  
the jumper cap from the pins.  
CHASSIS1  
®
A7N8X-X  
1
A7N8X-X Chassis Open Alarm Lead  
ASUS A7N8X-X Motherboard  
1-15  
8.  
Front panel audio connectors (10-1 pin FP_AUDIO1)  
This is an interface for the Intel front panel audio cable that allow convenient  
connection and control of audio devices.  
FPAUDIO1  
®
A7N8X-X  
A7N8X-X Front Panel Audio Connector  
Hard disk connector (2-pin IDELED1)  
9.  
This 2-pin connector connects to the front panel HD LED and lights up on  
every read/write activity of any of the disc drives connected to the primary or  
secondary IDE slots.  
IDELED1  
®
A7N8X-X  
TIP: If the case-mounted LED does not  
light, try reversing the 2-pin plug.  
A7N8X-X IDE Activity LED  
10. OnBoard LED  
The green Light Emitting Diode (LED) lights-ON if there is standby power and  
lights-OFF when the power is turned off.  
PWR_LED1  
®
A7N8X-X  
ON  
OFF  
Standby  
Power  
Powered  
Off  
A7N8X-X Onboard LED  
1-16  
Chapter 1: Motherboard Information  
11. Internal audio connectors (4-pin CD1, AUX1, MODEM1)  
These connectors allow you to receive stereo audio input from sound sources  
such as a CD-ROM, TV tuner, MPEG card or modem.  
MODEM1  
CD1 (Black) AUX1 (White)  
®
A7N8X-X  
A7N8X-X Internal Audio Connectors  
12. Power Supply Thermal Sensor (2-pin PWRTMP1)  
This header supports a thermal sensor for the power supply.  
PWRTMP1  
®
A7N8X-X  
PWRTMP  
Ground  
A7N8X-X Power Supply Thermal Connector  
13. Serial Port 2 connector (10-1 pin COM2) (optional)  
This connector accomodates a second serial port using an optional serial port  
bracket. Connect the bracket cable to this connector then install the bracket  
into a slot opening at the back of the system chassis.  
COM2  
PIN 1  
®
A7N8X-X  
A7N8X-X Serial COM2 Bracket  
ASUS A7N8X-X Motherboard  
1-17  
14. Digital Audio Connector (6 pin SPDIF1) (optional)  
This connector is for optional S/PDIF audio module that allows digital instead  
of analog sound input and output.  
1
SPDIF1  
®
A7N8X-X  
A7N8X-X Digital Audio Connector  
When you input sound for S/PDIF IN, the LINE_OUT will output the  
sound. Mute LINE_OUT to impede sound output from S/PDIF IN.  
15. Infrared Module connector (10-1 or 10-2 pin IR_CON1) (optional)  
These connectors support an optional wireless transmitting and receiving  
infrared module. The module mounts to a small opening on the system chassis  
that support this feature. You must also configure the UART2 Use As  
parameter in BIOS to set UART2 for use with IR.  
Use the ten pins as shown in Back View and connect a ribbon cable from the  
module to the motherboard SIR connector according to the pin definitions.  
IR_CON1  
Standard Infrared (SIR)  
Front View  
Back View  
SIR  
CIR  
®
A7N8X-X  
+5V  
(NC)  
IRTX  
GND  
IRRX  
A7N8X-X Infrared Connector  
1-18  
Chapter 1: Motherboard Information  
16. System panel connector (20-pin PANEL1)  
This connector accommodates several system front panel functions.  
Keyboard Lock  
Power LED  
Speaker  
Connector  
®
Reset SW  
A7N8X-X  
ATX Power  
Switch*  
SMI Lead  
Requires an ATX power supply.  
A7N8X-X System Panel Connectors*  
System Power LED Lead (3-1 pin PLED)  
This 3-1 pin connector connects to the system power LED. The LED lights  
up when you turn on the system power.  
Keyboard Lock Lead (2-1 pin KEYLOCK)  
This 2-1 pin connector connects to the case-mounted switch to allow the use  
of the keyboard lock feature.  
System Warning Speaker Lead (4-pin SPEAKER)  
This 4-pin connector connects to the case-mounted speaker and allows you  
to hear system beeps and warnings.  
System Management Interrupt Lead (2-pin SMI)  
This 2-pin connector permits switching to suspend mode, or “Green” mode, in  
which system activity is instantly decreased to save power and to expand the  
life of certain system components.  
Reset Switch (2-pin RESET)  
This 2-pin connector connects to the case-mounted reset switch for rebooting  
the system without turning off the power switch.  
ATX Power Switch / Soft-Off Switch Lead (2-pin PWR)  
This connector connects a switch that controls the system power. Pressing  
the power switch turns the system between ON and SLEEP, or ON and  
SOFT OFF, depending on the BIOS or OS settings. Pressing the power  
switch while in the ON mode for more than 4 seconds turns the system OFF.  
ASUS A7N8X-X Motherboard  
1-19  
1-20  
Chapter 1: Motherboard Information  
Chapter 2  
This chapter gives information about the ASUS  
A7N8X-X Basic Input/Output System  
(BIOS).This chapter includes updating the BIOS  
using the ASUS AFLASH BIOS that is bundled  
with the support CD.  
2-1  
ASUS A7N8X-X Motherboard  
2.1 Managing and updating your BIOS  
2.1.1 Using the computer system for the first time  
It is recommended that you save a copy of the original motherboard BIOS along with  
a Flash Memory Writer utility (AWDFLASH.EXE) to a bootable floppy disk in case  
you need to reinstall the BIOS later. AWDFLASH.EXE is a Flash Memory Writer  
utility that updates the BIOS by uploading a new BIOS file to the programmable flash  
ROM on the motherboard. This file works only in DOS mode. To determine the BIOS  
version of your motherboard, check the last four numbers of the code displayed on  
the upper left-hand corner of your screen during bootup. Larger numbers represent  
a newer BIOS file.  
1. Type FORMATA:/S at the DOS prompt to create a bootable system disk. DO NOT  
copy AUTOEXEC.BAT and CONFIG.SYS to the disk.  
2. Type COPY D:\SOFTWARE\AWDFLASH\AWDFLASH.EXE A:\ (assuming D is  
your CD-ROM drive) to copy AWDFLASH.EXE to the boot disk you created.  
AWDFLASH works only in DOS mode. It does not work in the DOS prompt  
within Windows, and does not work with certain memory drivers that may be  
loaded when you boot from the hard drive. It is recommended that you reboot  
using a floppy disk in order to open DOS mode.  
3.  
Reboot the computer from the floppy disk. To use AWDFLASH.EXE must be  
operated from the ROOT directory. Therefore, copy the AWDFLASH.EXE  
program and the NEW BIOS file to the root directory on the hard disk drive;  
for example: type, “COPY A:\AWDFLASH.EXE C:\” and “COPY  
A:\BIOSNAME.BIN C:\.  
If you encounter problems while updating the new BIOS, DO NOT turn off the  
system because this may cause boot problems. Just repeat the process, and if  
the problem persists, load the original BIOS file you saved to the boot disk, or  
try to clear the CMOS memory (see section 1.7, Jumpers). If the Flash Memory  
Writer utility is not able to successfully update a complete BIOS file, the system  
may not boot. If this happens, call the ASUS service center for support.  
2-2  
Chapter 2: BIOS Setup  
2.1.2 Updating BIOS procedures  
Update the BIOS only if you have problems with the motherboard and you are  
sure that the new BIOS revision will solve your problems. Careless updating  
may create more problems !  
The Binary Input/Output System (BIOS) can be updated using the built-in Flash  
Memory Writer utility or using a bootable floppy disk with the executable Flash  
Memory Writer Utility (AWDFLASH.EXE). The following sub-sections explain the  
steps in flashing your BIOS.  
Updating BIOS via Built-in AwardBIOS Flash Utility  
1. Download the latest BIOS file from the ASUS website (see ASUS contact info on  
Page viii). Save the copy to a floppy disk.  
Write down the BIOS file name on a piece of paper. You need to type the exact  
BIOS file name at the Award BIOS Flash Utility.  
2.  
3.  
Reboot the computer.  
To use AwardBIOS Flash Utility, press <Alt> + <F2> during POST to display  
the following screen.  
The BIOS information in the above screen is for reference only. what you see  
on your screen may not be exactly the same as shown.  
4.  
Insert the disk that contains the new BIOS file into the floppy drive. You will  
receive the error message, “WARNING! Device not ready!” if you proceed to  
step 5 without the disk in the drive.  
5. Type the name of the new BIOS file, for example: “AW0702.BIN” then press <Enter>.  
The program asks if you want to save the previous BIOS. Select <Y> since it is  
advisable to back-up the original BIOS in case you need to reprogram it.  
2-3  
ASUS A7N8X-X Motherboard  
6.  
The program asks to save the previous BIOS to a separate file. Type a file  
name for the old bios and then press <Y>. The AWDFLASH program backs-  
up the file.  
7.  
AWDFLASH proceeds to check the new BIOS file and asks the user to  
program (flash) the new BIOS file to the motherboard.  
8.  
Type <Y> and Press <Enter> to flash the new Bios file. NOTE: Do not shut  
off system power or unplug the supply during the flash process.  
2-4  
Chapter 2: BIOS Setup  
9. The BIOS flashes and displays the results. Press <F1> to restart.  
Updating BIOS via Bootable Floppy Disk  
1. Boot from the floppy disk.  
2.  
At the “A:\” prompt, type “C:\” and then press <Enter>.  
3. At the “C:\” prompt, type “AWDFLASH /e BIOSFILE” and then <Enter>. For  
example: “AWDFLASH /e aw0702.bin” The AWDFLASH screen appears, and  
the BIOS file appears in the space, “File Name to Program”.  
4. Type the name of the new BIOS file, for example: “AW0702.BIN” then press <Enter>.  
The program asks if you want to save the previous BIOS. Select <Y> since it is  
advisable to back-up the original BIOS in case you need to reprogram it.  
5. Follow steps 6 to 9 in “2.1.2.1 Updating BIOS via Built-in Award BIOS Flash  
Utility.”  
2-5  
ASUS A7N8X-X Motherboard  
2.2 BIOS Setup program  
This motherboard supports a programmable FLASH ROM that you can update using  
the provided utility described in section “2.1 Managing and updating your BIOS.”  
Use the BIOS Setup program when you are installing a motherboard, reconfiguring  
your system, or prompted to “Run Setup”. This section explains how to configure  
your system using this utility.  
Even if you are not prompted to use the Setup program, you 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.  
If you wish to enter Setup after POST, restart the system by pressing <Ctrl> + <Alt>  
+ <Delete>, or by pressing the reset button on the system chassis. You can also  
restart by turning the system off and then back on. Do this last option only if the first  
two failed.  
The Setup program is designed to make it as easy to use as possible. It is a menu-  
driven 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.  
2-6  
Chapter 2: BIOS Setup  
2.2.1 BIOS menu bar  
The top of the screen has a menu bar with the following selections:  
MAIN  
Use this menu to make changes to the basic system configuration.  
ADVANCED Use this menu to enable and make changes to the advanced  
features, including BIOS, Chipset, Peripheral, Power and PnP/ PCI  
configurations.  
SECURITY Use this menu to set the Supervisor and User passwords.  
HARDWARE Monitor the status of vital components, including voltages and fan  
speeds.  
EXIT  
MONITOR  
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)  
Function Description  
<F1>  
Displays the General Help screen  
<Esc>  
Jumps to the Exit menu or returns to the main menu from  
a sub-menu  
Left or Right arrow  
Selects the menu item to the left or right  
Up or Down arrow  
Moves the highlight up or down between fields  
Page Down and – (minus)  
Scrolls backward through the values for the highlighted  
field  
Page Up and + (plus)  
<Enter>  
Scrolls forward through the values for the highlighted field  
Brings up a selection menu for the highlighted field  
Saves changes and Exit  
<F10>  
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ASUS A7N8X-X Motherboard  
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 “4.7 Exit Menu” for detailed information on saving changes and exiting the setup  
program.  
Scroll bar  
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>.  
Sub-menu  
Note that a right pointer symbol (as shown on the  
left) appears to the left of certain fields. This pointer  
indicates that you can display a sub-menu from this  
field. A sub-menu contains additional options for a  
field parameter. To display a sub-menu, move the  
highlight to the field and press <Enter>. The sub-  
menu appears. Use the legend keys to navigate  
and enter values within each sub-menu as you  
would within a menu. Use the <Esc> key to return  
to the main menu. Take some time to familiarize  
yourself with the legend keys and their  
corresponding functions. Practice navigating  
through the various menus and sub-menus. While  
moving around through the Setup program, note that explanations appear in the Item  
Specific Help window located to the right of each menu. This window displays the  
help text for the currently highlighted field.  
2-8  
Chapter 2: BIOS Setup  
2.3 Main Menu  
When you enter the Setup program, the following screen appears.  
System Date [mm/dd/yy]  
Sets the system to the date that you specify (usually the current date). The format is  
month, day, year. Valid values for month, day, and year are Month: (1 to 12), Day: (1  
to 31), Year: (up to 2084). Use the <Tab> or <Shift> + <Tab> keys to move between  
the month, day, and year fields.  
System Time [hh:mm:ss]  
Sets the system to the time that you specify (usually the current time). The format is  
hour, minute, second. Valid values for hour, minute and second are Hour: (00 to 23),  
Minute: (00 to 59), Second: (00 to 59). Use the <Tab> or <Shift> + <Tab> keys to  
move between the hour, minute, and second fields.  
Legacy Diskette A [1.44M, 3.5 in.]  
Sets the type of floppy drive installed. Configuration options: [None] [360K, 5.25 in.]  
[1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]  
Halt On [All Errors]  
This field sets the system to halt on errors according to the system functions specified  
in each option. Configuration options: [All Errors] [No Errors] [All, But Keyboard] [All  
, But Diskette] [All, But Disk/Key]  
2-9  
ASUS A7N8X-X Motherboard  
2.3.1 Primary Master/Slave  
IDE HDD Auto-Detection [Press Enter]  
Press enter to automatically detect an IDE hard disk drive, if the hard drive is not  
already detected. In cases of undetected HDDs, pressing enter will detect the HDD  
and then open access to both the IDE Primary Master and Access Mode fields.  
IDE Primary Master/Slave [Auto]  
Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is  
successful, the setup BIOS automatically fills in the correct values for the remaining  
fields on this sub-menu. If automatic detection fails, this may be because the hard  
disk drive is too old or too new. If the hard disk was already formatted on a previous  
system, the setup BIOS may detect incorrect parameters. In these cases, select  
[Manual] to manually enter the IDE hard disk drive parameters. See Access Mode  
below and refer to the next page for more details. If no drive is installed or if you are  
removing a drive and not replacing it, select [None]. Configuration options: [None]  
[Auto [Manual]  
Access Mode [Auto]  
The default [Auto] automatically detects an IDE hard disk drive. Select [CHS] in  
coordination with the [Manual] setting of the IDE Primary Master in order to enter the  
Hard Disk Drive values manually.  
Before attempting to configure a hard disk drive, make sure you have the  
correct configuration information supplied by the drive manufacturer. Incorrect  
settings may cause the system to fail to recognize the installed hard disk.  
2-10  
Chapter 2: BIOS Setup  
[Manual] & [CHS] Settings  
Manually enter the number of cylinders, heads and sectors per track for the drive.  
Refer to the drive documentation or on the drive label for this information.  
After entering the IDE hard disk drive information into BIOS, use a disk utility,  
such as FDISK, to partition and format new IDE hard disk drives. This is  
necessary so that you can write or read data from the hard disk. Make sure to  
set the partition of the Primary IDE hard disk drives to active.  
After making your selections on this sub-menu, press the <Esc> key to return to the  
Main menu. When the Main menu appears, the hard disk drive field displays the size  
for the hard disk drive that you configured.  
Access Mode [Auto]  
Select the hard disk drive type in this field. When Logical Block Addressing (LBA) is  
enabled, the 28-bit addressing of the hard drive is used without regard for cylinders,  
heads, or sectors. Note that LBA Mode is necessary for drives with more than 504MB  
storage capacity. Select [CHS] to make manual entries for configuring the fields below.  
Configuration options: [CHS] [LBA] [Large] [Auto]  
Cylinders  
This field configures the number of cylinders. Refer to the drive documentation to  
determine the correct value. To make changes to this field, set the IDE Primary  
Master field to [Manual] and the Access Mode to [CHS].  
Head  
This field configures the number of read/write heads. Refer to the drive documentation  
to determine the correct value. To make changes to this field, set the IDE Primary  
Master field to [Manual] and the Access Mode to [CHS].  
Precomp  
This field displays the precompressed volumes on the hard disk, if any, in MB.  
2-11  
ASUS A7N8X-X Motherboard  
Landing Zone  
This field displays the drive’s maximum useable capacity as calculated by the BIOS  
based on the drive information you entered.  
Sector  
This field configures the number of sectors per track. Refer to the drive documentation  
to determine the correct value. To make changes to this field, set the Type field to  
[User Type HDD] and the Translation Method field to [Manual].  
2.3.2 Secondary Master/Slave  
IDE HDD Auto-Detection [Press Enter]  
Press enter to automatically detect an IDE hard disk drive, if the hard drive is not  
already detected. In cases of undetected HDDs, pressing enter will detect the HDD  
and then open access to both the IDE Primary Master and Access Mode fields.  
IDE Secondary Master/Slave [Auto]  
Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is  
successful, the setup BIOS automatically fills in the correct values for the remaining  
fields on this sub-menu. If automatic detection fails, this may be because the hard  
disk drive is too old or too new. If the hard disk was already formatted on a previous  
system, the setup BIOS may detect incorrect parameters. In these cases, select  
[Manual] to manually enter the IDE hard disk drive parameters. See Access Mode  
below and refer to the next page for more details. If no drive is installed or if you are  
removing a drive and not replacing it, select [None]. Configuration options: [None]  
[Auto [Manual]  
Access Mode [Auto]  
The default [Auto] automatically detects an IDE hard disk drive. Select [CHS] in  
coordination with the [Manual] setting of the IDE Primary Master in order to enter the  
Hard Disk Drive values manually.  
Before attempting to configure a hard disk drive, make sure you have the  
correct configuration information supplied by the drive manufacturer. Incorrect  
settings may cause the system to fail to recognize the installed hard disk.  
2-12  
Chapter 2: BIOS Setup  
2.4 Advanced Menu  
Advanced menu items  
The Advanced menu accesses five important sub-menus:  
Advanced BIOS Features  
These fields set the functional properties of CPU caches, as well as boot devices,  
security and operational modes.  
Advanced Chipset Features  
These fields set chipset and CPU functions, including system and AGP caches, boot  
devices, memory settings, voltages and frequencies.  
Integrated Peripherals  
These fields set the functional properties of the IDE channels, Master/Slave PIOs,  
USB, IEEE 1394, audio, network and modem support, as well as serial, game, midi  
and parallel addresses.  
Power Management Setup  
These fields set the functional properties of the ACPI, system power management,  
HDD power, network “wake-up” and “power-on” options.  
PnP/PCI Configuration  
These fields set the capacity of the BIOS to reset data configurations and to  
automatically configure the system along with PCI/VGA properties. IRQ resources  
are accessed from this menu.  
To access the menu bar items, press the up and down arrow keys and then press  
<enter> to view the desired menu.  
2-13  
ASUS A7N8X-X Motherboard  
2.4.1 Advanced BIOS Features  
Boot Virus Detection [Disabled]  
This field disables boot virus protection by default. Configuration options: [Enabled]  
[Disabled]  
CPU Level 1, Level 2 Cache [Enabled]  
These fields enables the CPU levels 1 and 2 cache by default.  
Configuration options: [Enabled] [Disabled]  
Quick Power On Self Test [Enabled]  
This field enables the power on test. Configuration options: [Enabled] [Disabled]  
First Boot Device [Floppy]  
This field sets the priority of the first boot device; by default, the system boots up on  
the floppy diskette drive. Configuration options: [Floppy] [LS120] [HDD-0] [HDD-1]  
[HDD-2] [HDD-3] [SCSI] [CDROM] [ZIP100] [LAN] [Disabled]  
Second Boot Device [HDD-0]  
This field sets the priority of the second boot device; by default, the system boots up  
on the hard disk driver if the floppy drive is not present. Configuration options: [Floppy]  
[LS120] [HDD-0] [HDD-1] [HDD-2] [HDD-3] [SCSI] [CDROM] [ZIP100] [LAN] [Disabled]  
Third Boot Device [LS120]  
This field sets the priority of the third boot device; by default, the system boots up on  
the LS120 if the flopyy and hard disk drive are not present. Configuration options:  
[Floppy] [LS120] [HDD-0] [HDD-1] [HDD-2] [HDD-3] [SCSI] [CDROM] [ZIP100] [LAN]  
[Disabled]  
Boot Other Device [Enabled]  
By default, this field enables the detection of other devices, aside from the first three  
priority devices. Configuration options: [Enabled] [Disabled]  
Boot-up Floppy Seek [Enabled]  
If enabled, this field speeds up the Power On Self Test (POST) routine by skipping  
and retesting several times. Configuration options: [Enabled] [Disabled]  
2-14  
Chapter 2: BIOS Setup  
Boot-up NumLock Status [On]  
This field sets the capability of the NumLock light/key to display/activate the system.  
Configuration options: [On] [Off]  
Gate A20 Option [Fast]  
This field sets the gate A20 rate. The default is [Fast].  
Configuration options: [Normal] [Fast]  
Typematic Rate Setting [Disabled]  
This field enables or disable permission to change the rate of keystroke registration  
and display. By default, the rate cannot be changed. Change to [Enabled] to make  
settings in the nextt field. Configuration options: [Enabled] [Disabled]  
APIC Mode [Enabled]  
This field enables or disables the APIC mode.  
Configuration options: [Enabled] [Disabled]  
OS/2 Onboard Memory > 64MB [Disabled]  
This field enables or disables the 64MB onboard memory set for OS/2. Configuration  
options: [Disabled] [Enabled]  
2.4.2 Advanced Chipset Features  
(Scroll down to view all items on the menu.)  
CPU External Frequency (MHz) [100MHz]  
This field sets the external frequency ratio of the CPU. The system normally auto-  
detects the frequency capability based on the type of CPU installed.The Front Side  
Bus (FSB) is equal to 2 times this field value. Frequency ranges are adjustable in  
increments of 1, 2, 3 and/or 5 MHz. Configuration options: [100 MHz]... [200 MHz] [204  
MHz] [207 MHz] [211 MHz] [300 MHz]  
2-15  
ASUS A7N8X-X Motherboard  
CPU Frequency Multiple Setting [Auto]  
This field sets the frequency multiple between the CPU’s internal frequency (CPU  
speed) and external frequency. Set this field in conjunction with CPU Frequency  
(MHz) to match the speed of the CPU.  
CPU Frequency Multiple [5.0x]  
This field is available to unlocked processors only. For unlocked processors, this  
field sets the frequency multiple between the CPU’s internal frequency (CPU speed)  
and the external frequency.  
Configuration options: [5.0x] [5.5x]... ...[11.5] [12.0] [12.5x/13.0x]  
System Performance [Optimal]  
This field permits change of mode for system performance. When set to [Optimal],  
the system uses the most stable settings. When you want to use overclocked settings  
for higher performance but with higher risk of instability, set to [Aggressive] and to  
allow full customization of performance options set to [User Defined]. Configuration  
options: [Optimal] [Aggressive] [User Defined]  
CPU Interface [Optimal]  
This field sets the mode for CPU/FSB parameters usage. Select [Aggressive] if you  
want to use overclocked CPU/FSB parameters. Otherwise, the default value is  
[Optimal] where it uses the most stable CPU/FSB parameters. Configuration options:  
[Optimal] [Aggressive]  
Memory Frequency [By SPD]  
This field sets the type of memory frequency based on the type of DDR (Double Date  
Rate) memory module installed. Resulting frequency can vary depending on  
percentage setting which is multiplied by the FSB frqequency. Normally, the default,  
by SPD, permits autodetection. Configuration options: [By SPD] [50%] [60%] [66%]  
[75%] [80%] [83%] [Sync] [120%] [125%] [133% [150%] [166%] [200%]  
Resulting Frequency  
This field displays the resulting memory frequency.  
Memory Timing [Optimal]  
This field permits change of memory timing mode for system performance. When set  
to [User Defined], the next four fields can be set manually. Set to [Aggressive] for  
higher performance. Use default [Optimal] to use most stable settings. Configuration  
options: [Optimal] [Aggressive] [User Defined]  
SDRAM Active Precharge Delay [7]  
Row-active delay.  
SDRAM RAS to CAS Delay [1]  
RAS-to-CAS. This item controls the latency between the SDRAM Active command to  
the SDRAM.  
2-16  
Chapter 2: BIOS Setup  
SDRAM RAS Precharge Delay [1]  
Row-precharge delay.  
SDRAM CAS Latency [2.5T]  
This field sets the override clock cycle for the latency time between the SDRAM read  
command and the moment that the data actually becomes available. Normally, the  
system determines the rate automatically by default.  
FSB Spread Spectrum [Disabled]  
Configuration options: [Disabled] [0.50%] [1.00%]  
AGP Spread Spectrum [Disabled]  
Configuration options: [Disabled] [0.50%] [1.00%]  
CPU Vcore Setting [Auto]  
This field determines if the CPU Vcore is automatically scaled or set manually by the  
user. The default value is [Auto], therefore, the CPU vcore voltage is set for maximum  
performance without stressing the CPU. Configuration options: [Auto] [Menu]  
CPU Vcore [1.850V]  
When the CPU VCore Setting parameter is set to [Manual], this field permits selection  
of specific CPU core voltages. This field is not accessible if the above CPU VCore  
Setting parameter is set to [Auto].  
Configuration options: [1.100V] [1.125V] ... [1.825] [1.850V]  
The configuration option range varies from CPU’s with different clock speed.  
Graphics Aperture Size [64M]  
This field sets the size of mapped memory ( in megabytes ) for AGP graphic data.  
Configuration options: [32M] [64M] [128M] [256M] [512M]  
AGP Frequency [Auto]  
This field sets the frequency of the AGP controller. The default, [Auto], permits  
automatic selection of optimal AGP frequencies. Configuration options: [50, 66, 67,  
68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 90, 93, 95, 97,  
100MHz]  
System BIOS Cacheable [Disabled]  
This field establishes whether or not the BIOS is cacheable. Disabled by default.  
Configuration options: [Enabled] [Disabled]  
2-17  
ASUS A7N8X-X Motherboard  
Video RAM Cacheable [Disabled]  
This field establishes whether or not the video RAM is cacheable. Disabled by default.  
Configuration options: [Enabled] [Disabled]  
DDR Reference Voltage [ 2.6V]  
This field sets the voltage limits for the voltage supplied to the DDR memory. Note  
that increasing voltage to the DDR can cause premature failure of system components.  
Configuration options: [2.6V] [2.7V] [2.8V]  
AGP VDDQ Voltage [1.5V]  
This field sets the voltage limits for the voltage supplied to the AGP controller. Note  
that increasing voltage to the AGP controller can cause premature failure of system  
components.  
Configuration options: [1.5V] [1.6V] [1.7V]  
AGP 8X Support [Enabled]  
This field enables or disables the AGP 8X support.  
Configuration options: [Disable] [Enable]  
AGP Fast Write Capability [Enabled]  
This field enables or disables the AGP Fastwrite function.  
Configuration options: [Disable] [Enable]  
2.4.3 Integrated Peripherals  
(Scroll down to view all items on the menu.)  
Primary VGA BIOS [PCI VGA Card]  
This field sets the priority for the display of VGA signals. Change from the PCI VGA  
Cardt default to AGP VGA Card if using an AGP card.  
Configuration options: [PCI VGA Card] [AGP VGA Card]  
2-18  
Chapter 2: BIOS Setup  
USB Controllers [V1.1+V2.0]  
This field sets the protocols for OnChip processing of USB outputs. The default  
accomodates USB protocols 1.0 and 2.0.  
Configuration options: [Disabled] [V1.1 +V2.0] [V1.1]  
USB Legacy Keyboard Support [Disabled]  
This field sets support for USB keyboards. The USB keyboard is disabled by default.  
Enable this field to use a USB keyboard. Configuration options: [Enabled] [Disabled]  
USB Legacy Mouse Support [Disabled]  
This field sets support for USB keyboards. The USB keyboard is disabled by default.  
Enable this field to use a USB keyboard. Configuration options: [Enabled] [Disabled]  
Onboard AC97 Audio Controller [Auto]  
This field permits auto selection of AC97 audio codec processing by default.  
Configuration options: [Auto] [Disabled]  
Onboard AC97 Modem Controller [Auto]  
This field permits auto selection of AC97 modem support by default.  
Configuration options: [Auto] [Disabled]  
Onboard Lan (nVIDIA) [Auto]  
This field permits auto selection of MAC Lan (nVidia) support by default.  
Configuration options: [Auto] [Disabled]  
Floppy Disk Access Controller [Enabled]  
This field enables the FDA Controller by default.  
Configuration options: [Enabled] [Disabled]  
Onboard Serial Port 1 [3F8/IRQ4]  
These fields set the addresses for onboard serial port 1. Serial Port 1 and Serial Port  
2 must have different addresses. Configuration options: [Disabled] [3F8/IRQ4] [2F8/  
IRQ3] [3E8/IRQ4] [2E8/IRQ3] [Auto]  
Onboard Serial Port 2 [2F8/IRQ3]  
These fields set the addresses for onboard serial port 2. Serial Port 1 and Serial Port  
2 must have different addresses. Configuration options: [Disabled] [3F8/IRQ4] [2F8/  
IRQ3] [3E8/IRQ4] [2E8/IRQ3] [Auto]  
UART use as [COM Port]  
This field selects the device assignment for UART2 mode. The default is [COM  
Port]. Select [IR] to activate the next field, “UR2 Duplex Mode”.  
Configuration options: [IR] [COM Port]  
2-19  
ASUS A7N8X-X Motherboard  
Onboard Parallel Port [378/IRQ7]  
This field sets the address of the onboard parallel port connector to 378/IRQ7 by  
default. Disabling the port makes the parallel port unavailable. Configuration options:  
[Disabled] [378/IRQ7] [278/IRQ5] [3BC/IRQ7]  
Parallel Port Mode [SPP]  
This field sets the operation mode of the parallel port. The default, SPP, enables  
normal-speed operation but in one direction only; EPP enables bidirectional parallel  
port operation; ECP enables the parallel port to operate in bidirectional DMA mode;  
ECP+EPP enables normal speed operation in a both ECP and EPP modes. Select  
[ECP] to access the next field, “ECP Mode Use DMA”. Configuration options: [SPP]  
[EPP] [ECP] [ECP +EPP]  
ECP DMA Select [3]  
This field sets the parallel port DMA channel for the selected ECP mode. The default  
setting is 3. This selection is available only if you select [ECP] or [ECP+EPP] in  
Parallel Port Mode above. Configuration options: [1] [3]  
Onboard Game Port [201]  
This field sets the address of the game port t0 201 by default. Disabling the game  
port makes the port unavailable. Configuration options: [Disabled] [201] [209]  
Onboard MIDI I/O [330]  
This field sets the address of the MIDI I/O port to 330 by default.  
Configuration options: [Disabled] [330] [300]  
Onboard MIDI IRQ [5]  
This field sets the address of the MIDI IRQ.  
Configuration options: [5] [10]  
2.4.4 Power Management Setup  
ACPI Suspend to RAM [Disabled]  
This field enables or disables suspension to RAM. Configuration options: [Enabled]  
[Disabled]  
2-20  
Chapter 2: BIOS Setup  
Video Off Method [DPMS Support]  
This field defines “video off” features. The DPMS support option (Display Power  
Management System) permits the BIOS to control the video display card if it supports  
the DPMS feature. Blank Screen option blanks the screen; use blank screen for  
monitors without power management or “green” features. [V/H SYNC+Blank] blanks  
the screen and turns off vertical and horizontal scanning. Configuration options: [Blank  
Screen] [V/H SYNC+Blank] [DPMS Support]  
HDD Down In Suspend [Disabled]  
This field sets whether or not the HDD is automatically shut down in suspend mode.  
The default disables power to the HDD in suspend mode. Configuration options:  
[Enabled] [Disabled]  
PWR button < 4 Secs [Suspend]  
This field sets the delay after which the system powers off after depressing the external  
case-mounted power button. The default setting powers off the system instantly.  
Configuration options: [Soft-Off] [Suspend]  
Power Up on PCI Device [Enabled]  
This field enables Wake-On-LAN from soft-off mode. The default disables this option.  
Configuration options: [Enabled] [Disabled]  
Wake-Power Up On Ext. Modem [Disabled]  
This field allows either settings of [Enabled] or [Disabled] for powering up the computer  
when the external modem receives a call while teh computer is in Soft-off mode.  
Configuration options: [Enabled] [Disabled]  
Automatic Power Up [Disabled]  
This field sets to enable or disable the automatic power up.When [Enabled] the Time  
(hh:mm:ss) of Alarm field is enabled for input.  
Configuration options: [Enabled] [Disabled]  
Time (hh:mm:ss) of Alarm 0:00:00  
This field sets the time for automatic power up. Enter the hour, minute and second  
based on the 24 hour clock. The Automatic Power Up field must be enabled to use  
this feature.  
AC Power Loss Restart [Disabled]  
This allows you to set whether or not to reboot the system after power interruptions.  
[Disabled] leaves your system off while [Enabled] reboots the system. [Previous State]  
sets the system back to the state it was before the power interruption.  
Configuration options: [Disabled] [Enabled] [Previous State]  
2-21  
ASUS A7N8X-X Motherboard  
Power On By PS/2 Mouse [Disabled]  
When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on  
the system. This feature requires an ATX power supply that provides at least 1A on  
the +5VSB lead. Configuration options: [Disabled] [Enabled]  
Power On By PS/2 Keyboard [Disabled]  
This parameter allows you to use specific keys on the keyboard to turn on the  
system. This feature requires an ATX power supply that provides at least 1A on the  
+5VSB lead. Configuration options: [Disabled] [Any KEY] [Power Key]  
2.4.5 PnP / PCI Configurations  
Resources Controlled By [Auto(ESCD)]  
This field sets control over the IRQ resources by the automatic (ESCD) system or  
manual assignment of IRQ channels. The default enables automatic (ESCD) control.  
Configuration options: [Auto(ESCD)] [Manual].  
PCI/VGA Palette Snoop [Disabled]  
This field enables the PCI/VGA palette snoop. This feature is disabled by default.  
Configuration options: [Enabled] [Disabled]  
2-22  
Chapter 2: BIOS Setup  
2.5 Security Menu  
The BIOS Setup program permits two different passwords to control access to the  
BIOS during system startup: a Supervisor password and a User password.  
Passwords are not case sensitive, meaning, passwords can be typed in either  
uppercase or lowercase letters. The table below describes the authority level when  
setting Supervisor or User Password.  
TABLE 2.5.1 Supervisor/User Set Password  
Security Option  
System  
Supervisor Password  
User Password  
A password is required for  
booting and entering into  
the CMOS setup and only  
“Date” and “Time” could be  
modified. All other items in  
the CMOS are displayed  
only.  
A password is required for  
booting and entering into the  
CMOS setup and all items can  
be modified.  
Setup  
A password is required to  
enter into the CMOS and  
only “Date” and “Time”  
could be modified.All other  
items in the CMOS are  
displayed only.  
A password is required to  
enter into the CMOS and  
items can be modified.  
TABLE 4.5.2 User Set Password only  
Security Option  
System  
Supervisor Password  
User Password  
A password is required for  
booting and entering into  
the CMOS setup and all  
items can be modified.  
None  
Setup  
None  
A password is required to  
enter into the CMOS setup  
and all items can be  
modified.  
2-23  
ASUS A7N8X-X Motherboard  
Security Option [Setup]  
This field sets the security options. The default enables the setup option for security.  
Configuration options: [Setup] [System]  
Set Supervisor Password / Set User Password  
To set a password, highlight the appropriate field and press <Enter>. Type in a  
password then press <Enter>. You can type up to eight alphanumeric characters;  
symbols and other characters are not useable. To confirm the password, type the  
password again and press <Enter>. The password is now set to [Enabled]. This  
password permits full access to the BIOS Setup menus. To clear the password,  
highlight this field and press <Enter>. The same dialog box as above appears. Press  
<Enter>. The password is set to [Disabled].  
Forgot the password?  
If you forget a password, you can clear it by erasing the CMOS Real Time Clock (RTC)  
RAM. The RAM data containing the password information is powered by the onboard button  
cell battery.  
NOTE: See section “1.9 Jumpers” for more information about how to erase the RTC RAM.  
2.6 Hardware Monitor Menu  
The Harware Monitor menu displays all vital system statistics.  
2-24  
Chapter 2: BIOS Setup  
MB, CPU Temperature [xx C / xx F]  
The onboard hardware monitor automatically detects the MB (motherboard) and  
CPU temperatures.  
VCORE Voltage, +3.3V Voltage, +5V Voltage, +12V Voltage  
The onboard hardware monitor automatically detects the voltage output through the  
voltage regulators.  
CPU Fan Speed xxxx RPM or 0 RPM  
CHASSIS Fan Speed xxxx RPM or 0 RPM  
POWER Fan Speed xxxx RPM or 0 RPM  
The onboard hardware monitor automatically detects the CPU, power and chassis  
fan speeds and displays the fan speeds in revolutions per minute (RPM). If any of  
the fans is not connected to the fan connectors on the motherboard, the specific  
field will show N/A.  
Q-Fan Control [Disabled]  
This field allows you to enable or disable the ASUS Q-Fan feature that smartly  
adjusts the fan speeds for more efficient system operation. When this field is set to  
[Enabled], set the appropriate Fan Speed Ratio and Speed Up/Down  
Response Time. Configuration options: [Disabled] [Enabled]  
Fan Speed Ratio [10/15]  
This item allows you to select the appropriate fan speed ratio for the system. The  
default [10/15] is the minimum fan speed ratio. Select a higher ratio if you installed  
additional devices and the system requires more ventilation. This item is required  
to be set when the Q-Fan Control field is [Enabled]. Configuration options: [10/15]  
[11/15] [12/15] [13/15] [14/15] [Full Speed].  
Speed Up/Down Response Time [4 Sec/8 Sec]  
This item indicates the time period before the fan speeds adjust to the vale set in  
the Fan Speed Ratio field. This item is required to be set when the Q-Fan  
Control field is [Enabled]. Configuration options: [1 Sec/2 Sec] [2 Sec/4 Sec] [3  
Sec/6 Sec] [4 Sec/8 Sec]  
2-25  
ASUS A7N8X-X Motherboard  
2.7 Exit Menu  
Exit & Save Changes  
Choose this option from the Exit menu to ensure the selected values are saved to the  
CMOS RAM. When selecting this option, a confirmation window appears. Select  
[Yes] to save changes and exit. The CMOS RAM is sustained by an onboard backup  
battery and stays on even when the PC is turned off.  
If attempting to exit the Setup program without saving changes, the program  
prompts 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.  
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, 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.  
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 [Yes] to discard  
any changes and load the previously saved values.  
Save Changes  
This option saves your selections without exiting the Setup program. You can then  
return to other menus and make further changes. After you select this option, a  
confirmation window appears. Select [Yes] to save any changes to the non-volatile  
RAM.  
2-26  
Chapter 2: BIOS Setup  
Chapter 3  
This chapter helps you power up your system  
and install drivers and utilities that came with the  
support CD.  
ASUS A7N8X-X Motherboard  
3-1  
3.1 Install an operating system  
This motherboard supports Windows 98SE/ME/NT/2000/XP operating  
system (OS). Always install the latest OS version and corresponding  
updates so you can maximize the features of your hardware.  
Because motherboard settings and hardware options vary, use the  
setup procedures presented in this chapter for general reference only.  
Refer to your OS documentation for more information.  
3.2 Support CD information  
The support CD that came with the motherboard contains useful software  
and several utility drivers that enhance the motherboard features.  
The contents of the support CD are subject to change at any time  
without notice. Visit the ASUS website for updates.  
3.2.1 Running the support CD  
To begin using the support CD, simply insert the CD into your CD-ROM  
drive. The CD automatically displays the Drivers menu if Autorun is  
enabled in your computer.  
Click an item to install  
Click an icon to display  
more information  
If Autorun is NOT enabled in your computer, browse the contents of  
the support CD to locate the file ASSETUP.EXE from the BIN folder.  
Double-click the ASSETUP.EXE to run the CD.  
3-2  
Chapter 3: Starting-Up  
3.2.2 Drivers menu  
The drivers menu shows the available device drivers if the system detects  
installed devices. Install the necessary drivers to activate the devices.  
NVIDIA nForce Driver  
This item installs the NVIDIA nForce set of drivers.  
QFE Drivers  
Click this item to load the installation wizard and install the Win98 QFE drivers.  
USB 2.0 Driver  
This item installs the Universal Serial Bus 2.0 (USB 2.0) driver.  
Some menu items appear only to specific operating system versions.  
3.2.3 Utilities menu  
The Utilities menu shows the applications and other software that the  
motherboard supports.  
ASUS PC Probe  
Install utility that can monitor Fan, Speed, Voltage, and CPU temperature.  
ASUS Update  
Installs utility to download and update motherboard BIOS & drivers.  
Microsoft DirectX 8.1 Driver  
This item installs the Microsoft V8.1 driver.  
ASUS A7N8X-X Motherboard  
3-3  
PC-CILLIN 2002  
This item installs the PC-cillin 2002 anti-virus software.  
ADOBE Acrobat Reader V5.0  
This installs software for viewing files in Portable Document Format (PDF).  
ASUS Screen Saver  
This item installs the ASUS screen saver.  
E-Color 3Deep  
This item installs application to optimize 3D graphics output.  
3.2.4 ASUS Contact Information  
Clicking the ASUS Contact Information tab displays as stated. You may  
also find this information on page viii of this user guide.  
3-4  
Chapter 3: Starting-Up  

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