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E1461
Revised Edition
October
Chapter 1: Motherboard Info
Chapter 2: BIOS Information
Chapter 3: Starting Up
Federal Communications Commission Statement
Canadian Department of Communications Statement
This class B digital apparatus complies with Canadian ICES-003
Electrical safety
Operation safety
Conventions used in this guide
Where to find more information
ASUSTeK COMPUTER INC. (Asia-Pacific)
ASUS COMPUTER INTERNATIONAL (America)
ASUS COMPUTER GmbH (Germany and Austria)
ASUSTeK COMPUTER (Middle East and North Africa)
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ASUS A7N8X-XMotherboard
Thank you for buying the ASUS® A7N8X-Xmotherboard
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NorthBridge Controller
DDR DIMM Sockets
ATX power connector
Floppy Disk connector
IDE Connectors
Onboard LED
S/PDIF connector
Audio CODEC
LAN chip
AGP Slot
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1.7.1Installing a DIMM
1.8.1 Configuring an expansion card
Standard Interrupt Assignments
1.8.3 AGP slot
1.USB device wake-up (3-pinUSBPWR_12,USBPWR_34,USBPWR_56)
2.Central Processing Unit FSB (CPU_FSB)
3.Clear RTC RAM (CLRTC1) (optional)
4.Keyboard power (3-pinKBPWR1)
1.IDE connectors (40-1pin PRI_IDE1, SEC_IDE1)
2.Floppy disk drive connector (34-1pin FLOPPY1)
3.ATX power connectors (20-pinATXPWR1)
4.USB header (10-1pin USB56) (optional)
5.GAME/MIDI connector (16-1pin GAME1) (optional)
7. Chassis intrusion connector (4-1pin CHASSIS1)
8.Front panel audio connectors (10-1pin FP_AUDIO1)
9.Hard disk connector (2-pinIDELED1)
10.OnBoard LED
11.Internal audio connectors (4-pinCD1, AUX1, MODEM1)
12. Power Supply Thermal Sensor (2-pinPWRTMP1)
13. Serial Port 2 connector (10-1pin COM2) (optional)
14. Digital Audio Connector (6 pin SPDIF1) (optional)
15. Infrared Module connector (10-1or 10-2pin IR_CON1) (optional)
16.System panel connector (20-pinPANEL1)
•System Power LED Lead (3-1pin PLED)
•Keyboard Lock Lead (2-1pin KEYLOCK)
•System Warning Speaker Lead (4-pinSPEAKER)
•System Management Interrupt Lead (2-pinSMI)
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2.1.1 Using the computer system for the first time
2.1.2 Updating BIOS procedures
Updating BIOS via Built-inAwardBIOS Flash Utility
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Updating BIOS via Bootable Floppy Disk
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2.2.1 BIOS menu bar
2.2.2 Legend bar
General help
Saving changes and exiting the Setup program
Scroll bar
Sub-menu
System Date [mm/dd/yy]
System Time [hh:mm:ss]
Legacy Diskette A [1.44M, 3.5 in.]
Halt On [All Errors]
2.3.1 Primary Master/Slave
Cylinders
Head
Precomp
2.3.2 Secondary Master/Slave
Advanced menu items
2.4.1 Advanced BIOS Features
2.4.2 Advanced Chipset Features
CPU Frequency Multiple Setting [Auto]
CPU Frequency Multiple [5.0x]
System Performance [Optimal]
CPU Interface [Optimal]
Memory Frequency [By SPD]
SDRAM RAS Precharge Delay [1]
SDRAM CAS Latency [2.5T]
FSB Spread Spectrum [Disabled]
AGP Spread Spectrum [Disabled]
CPU Vcore Setting [Auto]
2.4.3 Integrated Peripherals
USB Controllers [V1.1+V2.0]
USB Legacy Keyboard Support [Disabled]
USB Legacy Mouse Support [Disabled]
Onboard AC97 Audio Controller [Auto]
Onboard AC97 Modem Controller [Auto]
2.4.4 Power Management Setup
Video Off Method [DPMS Support]
HDD Down In Suspend [Disabled]
PWR button < 4 Secs [Suspend]
Power Up on PCI Device [Enabled]
Wake-PowerUp On Ext. Modem [Disabled]
2.4.5 PnP / PCI Configurations
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Security Option [Setup]
Set Supervisor Password / Set User Password
MB, CPU Temperature [xx C / xx F]
VCORE Voltage, +3.3V Voltage, +5V Voltage, +12V Voltage
CPU Fan Speed xxxx RPM or 0 RPM
CHASSIS Fan Speed xxxx RPM or 0 RPM
POWER Fan Speed xxxx RPM or 0 RPM
Exit & Save Changes
Exit & Discard Changes
Load Setup Defaults
Discard Changes
Save Changes
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3.2.1 Running the support CD
3.2.2 Drivers menu
NVIDIA nForce Driver
QFE Drivers
USB 2.0 Driver
3.2.3 Utilities menu
3.2.4 ASUS Contact Information