Acorp 7NFU400 User manual

7NFU400/7NFU400N
7NFG400/7NFG400N
USER'S MANUAL
M/B For Socket-A Athlon/Duron Processor
NO. G03-N2GAPR1A
Release date: June 2003
Trademark:
* Specifications and Information contained in this documentation are furnished for information use only, and are
subject to change at any time without notice, and should not be construed as a commitment by manufacturer.

i
USER’S NOTICE............................................................................................................ii
MANUAL REVISION INFORMATION ..........................................................................ii
COOLING SOLUTIONS ...............................................................................................ii
CHAPTER 1 INTRODUCTION OF
1-1 FEATURE OF MOTHERBOARD........................................................1
1-2 SPECIFICATION.............................................................................2
1-3 PERFORMANCE LIST .....................................................................3
1-4 LAYOUT DIAGRAM & JUMPER SETTING .........................................5
CHAPTER 2 HARDWARE INSTALLATION
2-1 HARDWARE INSTALLATION STEPS ................................................7
2-2 CHECKING MOTHERBOARD'S JUMPER SETTING ............................7
2-3 INSTALL CPU ................................................................................9
2-3-1 GLOSSARY...........................................................................9
2-3-2 ABOUT AMD ATHLON & DURON 462-PIN CPU .........................9
2-4 INSTALL MEMORY ........................................................................10
2-5 EXPANSION CARD .........................................................................11
2-5-1 PROCEDURE FOR EXPANSION CARD INSTALLATION .............11
2-5-2 ASSIGNING IRQ FOR EXPANSION CARD.................................11
2-5-3 INTERRUPT REQUEST TABLE FOR THIS MOTHERBOARD.......12
2-5-4 AGP SLOT ............................................................................12
2-6 CONNECTORS, HEADERS...............................................................13
2-6-1 CONNECTORS ......................................................................13
2-6-2 HEADERS.............................................................................15
2-7 STARTING UP YOUR COMPUTER ....................................................19
CHAPTER 3 INTRODUCING BIOS
3-1 ENTERING SETUP ..........................................................................20
3-2 GETTING HELP .............................................................................20
3-3 THE MAIN MENU ...........................................................................21
3-4 STANDARD CMOS FEATURES .........................................................22
3-5 ADVANCED BIOS FEATURES ..........................................................23
3-6 ADVANCED CHIPSET FEATURES ....................................................25
3-7 INTEGRATED PERIPHERALS ..........................................................26
3-7-1 ONCHIP IDE FUNCTION ........................................................27
3-7-2 ONCHIP DEVICE FUNCTION..................................................28
3-7-3 ONCHIP SUPER IO FUNCTION ...............................................28
3-8 POWER MANAGEMENT SETUP .......................................................29
3-9 PNP/PCI CONFIGURATION SETUP ...................................................30
3-9-1 IRQ RESOURCES..................................................................31
3-10 PC HEALTH STATUS .....................................................................32
3-11 MISCELLANEOUS CONTROL .........................................................33
3-12 LOAD STANDARD/OPTIMIZED DEFAULTS ......................................34
3-13 SET SUPERVISOR/USER PASSWORD...............................................34
CHAPTER 4 DRIVER & FREE PROGRAM INSTALLATION
MAGIC INSTALL SUPPORTS WINDOWS 9X/NT/2K/XP...............................35
4-1 NFORCE INSTALL NVIDIA NFORCE PACK DRIVER .....................36
4-2 VGA INSTALL NVIDIA VGA DRIVER.....................................37
4-3 SOUND INSTALL ALC AC97 AUDIO CODEC DRIVER .................37
4-4 USB 2.0 INSTALL NVIDIA USB 2.0 DRIVER ...............................38
4-5 PC-CILLIN INSTALL PC-CILLIN2002 ANTI-VIRUS PROGRAM ..........39
4-6 PC-HEALTH INSTALL NFORCE2 HARDWARE DOCTOR UTILITY .......40
4-7 MAGIC BIOS INSTALL BIOS LIVE UPDATE UTILITY ..........................42
4-8 HOW TO UPDATE BIOS ..................................................................43
TABLE OF CONTENT
7NFU400/7NFU400N/7NFG400/7FNG400N MOTHERBOARD

ii
USER’S NOTICE
COPYRIGHT OF THIS MANUAL BELONGS TO THE MANUFACTURER. NO PART OF THIS MANUAL,
INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT MAY BE REPRODUCED,
TRANSMITTED OR TRANSLATED INTO ANY LANGUAGE IN ANY FORM OR BY ANY MEANS WITHOUT
WRITTEN PERMISSION OF THE MANUFACTURER.
THIS MANUAL CONTAINS ALL INFORMATION REQUIRED TO USE 7NFU400/7NFU400N/7NFG400/7NFG400N
MOTHER-BOARD AND WE DO ASSURE THIS MANUAL MEETS USER’S REQUIREMENT BUT WILL CHANGE,
CORRECT ANY TIME WITHOUT NOTICE. MANUFACTURER PROVIDES THIS MANUAL “AS IS” WITHOUT
WARRANTY OF ANY KIND, AND WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTIAL OR
CONSEQUENTIAL DAMAGES (INCLUDING DAMANGES FOR LOSS OF PROFIT, LOSS OF BUSINESS, LOSS OF
USE OF DATA, INTERRUPTION OF BUSINESS AND THE LIKE).
PRODUCTS AND CORPORATE NAMES APPEARING IN THIS MANUAL MAY OR MAY NOT BE
REGISTERED TRADEMARKS OR COPYRIGHTS OF THEIR RESPECTIVE COMPANIES, AND THEY ARE
USED ONLY FOR IDENTIFICATION OR EXPLANATION AND TO THE OWNER’S BENEFIT, WITHOUT
INTENT TO INFRINGE.
Manual Revision Information
Reversion Revision History Date
1.0 First Release June 2003
Item Checklist
 7NFU400/7NFU400N/7NFG400/7NFG400N Motherboard
 Cable for IDE/Floppy
 CD for motherboard utilities
□Cable for USB2 Port (Option)
 VGA Port 2 Bracket (Only for 7NFG400/7NFG400N)
 7NFU400/7NFU400N/7NFG400/7NFG400N User’s Manual
AMD Athlon™ / Duron™ Processor Family
Cooling Solutions
As processor technology pushes to faster speeds and higher performance, thermal management
becomes increasingly crucial when building computer systems. Maintaining the proper thermal
environment is key to reliable, long-term system operation. The overall goal in providing the proper
thermal environment is keeping the processor below its specified maximum case temperature.
Heatsinks induce improved processor heat dissipation through increased surface area and concentrated
airflow from attached fans. In addition, interface materials allow effective transfers of heat from the
processor to the heatsink. For optimum heat transfer, AMD recommends the use of thermal grease
and mounting clips to attach the heatsink to the processor.
When selecting a thermal solution for your system, please refer to the website below for collection
of heatsinks evaluated and recommended by AMD for use with AMD processors. Note, those
heatsinks are recommended for maintaining the specified Maximum T case requirement. In addition,
this collection is not intended to be a comprehensive listing of all heatsinks that support AMD
processors.
For vendor list of heatsink and fan, please visit：
http://www1.amd.com/products/duron/thermals
http://www1.amd.com/products/athlon/thermals

1
Chapter 1
Introduction of 7NFU400/7NFU400N/7NFU400/7NFU400N
Motherboard
1-1 Feature of motherboard
The 7NFU400/7NFU400N/7NFG400/7NFG400N motherboard is design for use AMD Athlon/
Duron/Athlon XP 200MHz/266MHz/333MHz/400MHz (400MHz only for 7NFU400/
7NFU400N) (Double Data Rate) Front Side Bus Frequency CPU, which utilize the
Socket-A design.
7NFG400/7NFG400N motherboard use the newest nVIDIA nForce2 IGP north bridge chipset,
integrated GeForce4 MX series Graphics Processing Unit. Support DDR 266/333 with
internal graphic core. 7NFU400/7NFU400N whose 200MHz/266MHz/
333MHz/400MHz(400MHz only for 7NFU400/7NFU400N)(Double Data Rate) Front
Side Bus frequency delivers a clear upgrade path to the future generation of 266MHz/
333MHz/400MHz processors and memory interface DDR266/DDR333/DDR400 DDR
SDRAM (DDR400 only for 7NFU400/7NFU400N). The motherboard provided three
184-pin DDR DIMMs support PC3200(for 7NFU400/7NFU400N only) /PC2700/
PC2100/PC1600 DDR SDRAMs maximum size up to 3GB. Supports both 64-bit and 128-
bit (Dual Channel) DDR SDRAM. For those wanting even greater graphic performance, an
AGP 4X/8X slot is included on the board. Compliant with AGP 3.0 8x interface at 533MHz.
These motherboards use nVIDIA nForce2 MCP2 south bridge offers ULTRA ATA
66/100/133 to provide speedier HDD throughout that boosts overall system performance.
The 7NFU400N/7NFG400N motherboard including LAN MAC Controller chip support
10/100 Mb/sec Base transfer rate for network. With USB control as well as capability of
expanding to 6 USB function ports support USB2.0/USB1.1 Devices, meet future USB
demand.
A special design in hardware for protecting Athlon XP CPU from burned, the system will
auto shutdown power supply when CPU is overheat, or the CPU FAN is stop. The
motherboard has built-in hardware monitor function. This will monitor and protect your
computer.
In we design in CPU Vcore Voltage, DDR memory 2.5V Voltage, AGP 1.5V Voltage those
can minor adjustable in BIOS setup. This design can let users approach over clock
demand and also can make system more stable. The motherboard provides special
function in BIOS Setup to setting CPU Host clock let users to approach over clocking, and
special design in hardware to protect BIOS from virus crash BIOS data.
7NFU400/7NFU400N/7NFG400/7NFG400N provides high performance & meets future
specification demand. It is really wise choice for your computer.

2
1-2 Specification
Spec Description
Design ∗ ATX form factor 4 layers PCB size: 30.5x22.0cm
Chipset ∗ nVIDIA nForce2 Integrated Graphics Processor (IGP)
north bridge for 7NFG400/7FNG400N
∗ nVIDIA nForce2 System Platform Processor (SSP)
north bridge for 7NFU400/7NFU400N
∗ nVIDIA nForce2 Media and Communications Processor
(MCP2) south bridge
CPU Socket ∗ Support AMD Athlon 1.1GHz∼1.4GHz processor
∗ Support AMD Duron 900MHz∼1.3GHz processor
∗ Support AMD Athlon XP1500+~XP3200+ processor
∗ Support 200MHz/266MHz/333MHz/400MHz (Double Data
Rate) Front Side Bus frequency processors (400MHz support
only for 7NFU400/7NFU400N)
∗
Reserves support for future AMD Athlon XP processors
Memory Socket
(Dual Channel)
∗ 184-pin DDR module socket x3
∗
Support DDR266/DDR333/DDR400(for 7NFU400/7NFU400N
Ultra) DDR SDRAM
∗ Support both 64-bit and 128-bit (Dual Channel) DDR SDRAM
∗ Expandable to 3.0GB
Expansion Slot &
Headers
∗ AGP slot x1 support AGP 3.0 & 4X/8X mode
∗ 32-bit PCI slot x5
∗ CNR slot x1 support Communication Network Riser card
Integrate IDE ∗ Two PCI IDE controllers support PCI Bus Mastering, ATA
PIO/DMA and the ULTRA DMA 33/66/100/133 functions that
deliver the data transfer rate up to 133 MB/s
6 channel Audio ∗ Realtek ALC 6-channel AC97’ Codec integrated support
Front/Rear/Center-Base 6 channel Speaker
∗ Audio driver and utility included
BIOS ∗ Award 2MBit Flash ROM
On board LAN
(Only for 7FNU400N
7FNG400N)
∗ nVIDIA LAN MAC controller chip including
∗ Support 10/100 Mb/sec data transfer rate
Multi I/O ∗ PS/2 keyboard and PS/2 mouse connectors
∗ Floppy disk drive connector x1
∗ Parallel port x1, Serial port x2
∗ USB2.0 connector x4, headers x2 (connecting cable option)
∗ Audio connector (Line-in, Line-out, MIC & Game Port headers)

3
1-3 Performance List
The following performance data list is the testing result of some popular benchmark testing
programs. These data are just referred by users, and there is no responsibility for different
testing data values gotten by users (the different Hardware & Software configuration will
result in different benchmark testing results.)
Performance Test Report (for 7FNU400)
CPU: AMD Athlon XP 3000+ (FSB 166MHz)
DRAM: 512MB DDR400 X1 (Winbond DDR W942508BH-5)
256MB DDR400 X1 (Winbond DDR W942508BH-5)
VGA Expansion Card: ATI 9700 PRO (1024x768x32bit color)
Hard Disk Driver: IBM IC35L040AVVN07-0 (ATA-100 7200RPM)
BIOS: Award Optimal default
OS: Win XP Professional
166/166 166/200 166/200
Dual Channel
3D Mark 2001SE 12477 12291 12357
3D Mark 2003 4562 4541 4554
3D Winbench 2000 (32/32bit) 393 394 394
PC Mark 2002
CPU/Memory/HDD 6311 / 5162 / 965 6373 / 5120 / 969 6339 / 5197 / 978
Content Creation Winstone 2002 44.6 43.2 44.7
Content Creation Winstone 2003
Business Winstone 2002 36.6 34.6 36.3
Winbench 99 V1.2 :
Business Disk Winmark99 10300 10300 10100
Hi-end Disk Winmark99 33800 33200 33800
Business Graphic Winmark 752 751 744
Hi-end Graphic Winmark 1830 1820 1840
SYS Mark 2001/2002 : SISMark 2001/2002 Rating ( Internet Content Creation / Office Productivity )
SISMark 2001 245 (246 / 245) 243 (244 / 243) 246 (247 / 245)
SISMark 2002
SISOFT Sandra 2003 :
Dhrystone ALU MIPS 7800 7797 7810
Whetstone FPU MFLOPS 3137 3132 3165
RAM Int Buffered iSSE2 MB/S 2251 2148 2273
RAM Float Buffered iSSE2 MB/S 2100 2045 2093
Integer SSE2 IT/S 11543 11534 11531
Floating-Point SSE2 IT/S 12296 12282 12085
QUAKE3 DEMO1 FPS 239.4 228.3 232.3
DEMO2 FPS 233.7 228.5 232.7
Return to Castle Wolfenstein FPS 124.7 121.7 123.8
WCPUID System / CPU Clock 167.05 / 2171.60 167.05 / 2171.60 167.05 / 2171.60

4
Performance Test Report (for 7FNG400)
CPU: AMD Athlon XP 3000+ (FSB 166MHZ)
DRAM: 512MB DDR400 X1 (Winbond DDR W942508BH-5)
256MB DDR400 X1 (Winbond DDR W942508BH-5)
VGA Expansion Card: ATI 9700 PRO (1024x768x32bit color)
Hard Disk Driver: IBM IC35L040AVVN07-0 (ATA-100 7200RPM)
BIOS: Award Optimal default
OS: Win XP Professional
166/166 166/166 Dual Channel
3D Mark 2001SE 2934 4390
3D Mark 2003 157 218
3D Winbench 2000 (32/32bit) 80.6 123
PC Mark 2002
CPU/Memory/HDD 6269 / 4276 / 868 6299 / 4663 / 885
Content Creation Winstone 2002 41.7 43.9
Content Creation Winstone 2003 37.1 37.8
Business Winstone 2002 34.2 34.8
Winbench 99 V1.2 :
Business Disk Winmark99 9440 9510
Hi-end Disk Winmark99 31400 32000
Business Graphic Winmark 625 827
Hi-end Graphic Winmark 1790 1880
SYS Mark 2001/2002 : SISMark 2001/2002 Rating ( Internet Content Creation / Office
Productivity )
SISMark 2001 240 (239 / 241) 246 (246 / 247)
SISMark 2002 241 (303 / 191) 248 (321 / 191)
SISOFT Sandra 2003 :
Dhrystone ALU MIPS 7829 7892
Whetstone FPU MFLOPS 3130 3130
RAM Int Buffered iSSE2 MB/S 2251 2181
RAM Float Buffered iSSE2 MB/S 1943 2112
Integer SSE2 IT/S 11539 11536
Floating-Point SSE2 IT/S 12186 12202
QUAKE3 DEMO1 FPS 130.0 188.9
DEMO2 FPS 130.7 189.9
Return to Castle Wolfenstein FPS 82.3 115.7
WCPUID System / CPU Clock 167.04 / 2471.57 167.05 / 2171.59

5
1-4 Layout Diagram & Jumper Setting
LINE-OUT
LINE-IN
COM1 VGA/COM2A
(Option) USB1
MIC
PS/2 Mouse
PS/2 Keyboard
PRINT LAN
Front Panel Audio
PC99 Back Panel
CD Audio
K/B Power ON Jumper (JP2)
USB Port/
LAN Connector
PS2 KB/Mouse Port
USB Port (USB2)
AGP 4X/8X Slot
Floppy Connector
nVIDIA nForce2
IGP/SSP Chip
Front Panel Connector
ATA 133 IDE Conn.
Clear CMOS (JP6)
ATX Power Connector
CPU FAN
2MBit Flash ROM BIOS
CPU Socket
DDR DIMM X3
SFAN2
nVIDIA nForce2 MCP2
Chip
Speak Connector
Winbond 83627HF Chip
GAME Port Connector
PCI Slot
Wake On LAN
SFAN1
(JP8)
CPU F.S.B. Frequency Selector
USB Wake-Up Jumper (JP4)
USB Port
USB Wake-Up Jumpe
r
(JP1)
Audio Connector (CN1)
IR Connector
USB
VGA (for 7NFG400/7NFG400N)
COM2A (for 7NFU400/7NFU400N)
COM2 Connector
(for7FNG400/7FNG400N)
PCI Slot
AC97’ Audio Codec
(VGA1)
VGA Port 2 Connector

6
Jumpers
Jumper Name Description Page
JP2 Keyboard Power On Enabled/Disabled 3-pin Block P.7
JP1,JP4 USB Wake-Up Enabled/Disabled 3-pin Block P.7
JP8 CPU Front Side Bus Frequency 2-pin Block P.7
JP6 CMOS RAM Clear jumper 3-pin Block P.8
Connectors
Connector Name Description Page
PWR ATX Power Connector 20-pin Block P.12
KYB PS/2 Mouse & PS/2 Keyboard
Connector
6-pin Female P.12
USB1 USB Port Connector 2 x 4-pin Connector P.12
UL1 USB/LAN Port Connector 2 x 4-pin/RJ45 Connector P.12
LPT Parallel Port Connector 25-pin Female P.12
CN1
(Line-OUT/Line-IN/MIC)
Audio Connector 3 phone jack Connector P.12
VGA VGA Port Connector D-Sub 15-pin Connector P.12
COM1/COM2A
(COM2A for 7FNU400/
7FNU400N)
Serial Port COM1/2
Connector
9-pin Connector P.12
FDD Floppy Driver Connector 34-pin Block P.14
IDE1/IDE2 Primary/Secondary IDE
Connector
40-pin Block P.14
Headers
Header Name Description Page
COM2 Serial Port COM2 Header 9-pin Block P.15
VGA1 VGA Port2 Header 15-pin Block P.15
AUDIO Line-Out, MIC Header 9-pin Block P.15
GAME Game Port Header 15-pin Block P.16
USB2 USB Port Headers 9-pin Block P.16
HD LED IDE activity LED 2-pin Block P.16
RESET Reset switch lead 2-pin Block P.16
SPEAK Speaker connector 4-pin Block P.16
PWR LED Power LED 2-pin Block P.16
PWR BTN Power switch 2-pin Block P.16
WOL Wake On-LAN Headers 3-pin Block P.17
SFAN1, SFAN2, CPUFAN FAN Headers 3-pin Block P.17
IR IR infrared module Headers 5-pin Block P.18
CDIN CD Audio-In Headers 4-pin Block P.18
Expansion Sockets
Socket/Slot Name Description Page
ZIF Socket 462 CPU Socket 462-pin PPGA CPU Socket P.10
DIMM1, DIMM2,
DIMM3
DDR SDRAM Module
Socket
184-pin DDR SDRAM Module
Expansion Socket
P.10
PCI1, PCI2, PCI3,
PCI4, PCI5
PCI Slot 32-bit PCI Local Bus Expansion slots P.11
CNR CNR Slot Communication Network Riser Slot
AGP AGP 4X/8X Mode Slot AGP Expansion Slot P.12
Only for 7NFG400/7NFG400N

7
Chapter 2
Hardware installation
2-1 Hardware installation Steps
Before using your computer, you had better complete the following steps:
1. Check motherboard setting
2. Install CPU
3. Install Memory
4. Install Expansion cards
5. Connect Ribbon cables, Panel wires, and power supply
6. Setup BIOS
7. Install software driver & utility
2-2 Checking Motherboard’s Jumper Setting
(1) Keyboard Power On function Enabled/Disabled: JP2
USB Wake-Up function Enabled/Disabled :JP1, JP4
When setting Enabled you can using keyboard by key in password or use USB device
to power on system.
JP1, JP4 2-3 closed USB Wake-Up Enabled
JP2 2-3 closed K/B Power ON Enabled
JP1, JP4 1-2 closed USB Wake-Up Disabled (Default)
JP2 1-2 closed K/B Power ON Disabled (Default) JP2
JP4
1 3
JP2
JP4
1 3
JP1
1
3
JP1
1
3
(2) CPU Front Side Bus Frequency Setting (2-pin) : JP8
CPU Front Side Bus Frequency
ON : (AUTO)
JP8
1 2
OFF : 100MHz
JP8
1 2

8
Note: CPU Front Side Bus Frequency also can change setting in BIOS SETUP, please
refer page 34 Miscellaneous Control in Host Clock at Next.
Note: When overclocking cause system can not boot up, users have to keeping press the
“INS” key and push the power on button to switch on the system until the screen
have display to recovery the standard Default. Otherwise the CMOS will keep the
faulty data and M/B will not function.
(3) CMOS RAM Clear (3-pin) : JP6
A battery must be used to retain the motherboard configuration in CMOS RAM short
1-2 pins of JP6 to store the CMOS data.
To clear the CMOS, follow the procedure below:
1. Turn off the system and unplug the AC power
2. Remove ATX power cable from ATX power connector
3. Locate JP6 and short pins 2-3 for a few seconds
4. Return JP6 to its normal setting by shorting pins 1-2
5. Connect ATX power cable back to ATX power connector
Note: When should clear CMOS
1. Troubleshooting
2. Forget password
3. After over clocking system boot fail
CMOS RAM Clear Setting
2-3 closed Clear CMOS
JP6 1
3
JP6 1
3
1-2 closed Normal

9
2-3 Install CPU
2-3-1 Glossary
Chipset (or core logic) - two or more integrated circuits which control the interfaces between the
system processor, RAM, I/O devises, and adapter cards.
Processor slot/socket - the slot or socket used to mount the system processor on the motherboard.
Slot (AGP, PCI, ISA, RAM) - the slots used to mount adapter cards and system RAM.
AGP - Accelerated Graphics Port - a high speed interface for video cards; runs at 1X (66MHz), 2X
(133MHz), or 4X (266MHz).
PCI - Peripheral Component Interconnect - a high speed interface for video cards, sound cards,
network interface cards, and modems; runs at 33MHz.
ISA - Industry Standard Architecture - a relatively low speed interface primarily used for sound
cards and modems; runs at approx. 8MHz.
Serial Port - a low speed interface typically used for mouse and external modems.
Parallel Port - a low speed interface typically used for printers.
PS/2 - a low speed interface used for mouse and keyboards.
USB - Universal Serial Bus - a medium speed interface typically used for mouse, keyboards,
scanners, and some digital cameras.
Sound (interface) - the interface between the sound card or integrated sound connectors and speakers,
MIC, game controllers, and MIDI sound devices.
LAN (interface) - Local Area Network - the interface to your local area network.
BIOS (Basic Input/Output System) - the program logic used to boot up a computer and establish the
relationship between the various components.
Driver - software, which defines the characteristics of a device for use by another device or other
software.
Processor - the "central processing unit" (CPU); the principal integrated circuit used for doing the
"computing" in "personal computer"
Front Side Bus Frequency - the working frequency of the motherboard, which is generated by the
clock generator for CPU, DRAM and PCI BUS.
CPU L2 Cache - the flash memory inside the CPU, normally Athlon CPU has 256K or above,
while Duron will have 64K.
2-3-2 About AMD Athlon & Duron 462-pin CPU
This motherboard supports Socket-A (Socket-462) AMD Athlon/Duron processors.
This motherboard Provides a ZIF Socket-A. The CPU that comes with the motherboard
should have a cooling FAN attached to prevent overheating. If this is not the case, then
purchase a correct cooling FAN before you turn on your system.
WARNING! Be sure that there is sufficient air circulation across the processor’s heatsink and
CPU cooling FAN is working correctly, otherwise it may cause the processor
and motherboard overheat and damage, you may install an auxiliary cooling
FAN, if necessary.
WARNING! Due to this motherboard provides new function of protecting CPU；you must
connect the CPU FAN connector on CPUFAN location in order to obtain this
feature. Without connection on CPUFAN (or you have connect CPU FAN on
SFAN1), the system will shut down immediately to protect both your CPU and
motherboard.

10
Over heat Protect: Only for Athlon XP serial CPU, when the CPU overheat, system will auto shut
down power supply. You can hear a continue beep sound, the power button will
be locked up. Users must turn off and turn on the AC power to reset the system
otherwise the power button will no function, the other way is keeping press the
push button few seconds till the beep sound stop, then release the power button
and press the power button again to turn on the power supply.
To install a CPU, first turn off your system and remove its cover. Locate the ZIF socket
and open it by first pulling the level sideways away from the socket then upward to a 90-
degree angle. Insert the CPU with the correct orientation as shown below. The notched
corner should point toward the end of the level. Because the CPU has a corner pin for two
of the four corners, the CPU will only fit in the orientation as shown.
CPU ZIF Socket-A
Colden Arrow
Socket 462
When you put the CPU into the ZIF socket. No force require to insert of the CPU, then
press the level to Locate position slightly without any extra force.
2-4 Install Memory
This motherboard provides three 184-pin DUAL INLINE MEMORY MODULES (DIMM)
sites for memory expansion available from minimum memory size of 64MB to maximum
memory size of 3.0GB DDR SDRAM. For Support 128-bit data transfer function
(Dual Channel ) must plug both DIMM1 & DIMM3, DIMM2 & DIMM3, or DIMM1
&DIMM2 & DIMM3, other combination only support 64-bit data transfer.
Valid Memory Configurations
Bank 184-Pin DIMM PCS Total Memory
Bank 0, 1 (DIMM1) DDR 266/333/400 DDR SDRAM X1 64MB∼1.0GB
Bank 2, 3 (DIMM2) DDR 266/333/400 DDR SDRAM X1 64MB∼1.0GB
Bank 4, 5 (DIMM3) DDR 266/333/400 DDR SDRAM X1 64MB∼1.0GB
Total System Memory (Max. 3.0GB) 3 64MB∼3.0GB
NOTE! Make sure the total installed memory does not exceeds 3.0GB, otherwise the
system may hang during startup.
Generally, installing DDR SDRAM modules to your motherboard is very easy, you can
refer to figure 2-4 to see what a 184-Pin DDR 266/333/400 DDR SDRAM module looks
like.

11
DIMM2 (BANK2+BANK3) DIMM1 (BANK0+BANK1) DIMM3 (BANK4+BANK5)
Dual Channel (DIMM2 & DIMM3)
Dual Channel (DIMM1 & DIMM3)
Dual Channel (DIMM1 & DIMM2 & DIMM3)
NOTE! When you install DIMM module fully into the DIMM socket the eject tab
should be locked into the DIMM module very firmly and fit into its
indention on both sides.
WARNING! For the DDR SDRAM CLOCK is set at 166MHz, use only DDR333 compliant
DDR Modules. When this motherboard operate at 133Mhz, most system will not
even boot if non-compliant modules are used because of the strict timing issues, if
your DDR Modules are not DDR266-compliant, set the DDR SDRAM clock to
100MHz to ensure system stability.
2-5 Expansion Cards
WARNING! Turn off your power when adding or removing expansion cards or other system
components. Failure to do so may cause severe damage to both your motherboard
and expansion cards.
2-5-1 Procedure For Expansion Card Installation
1. Read the documentation for your expansion card and make any necessary hardware or
software setting for your expansion card such as jumpers.
2. Remove your computer’s cover and the bracket plate on the slot you intend to use.
3. Align the card’s connectors and press firmly.
4. Secure the card on the slot with the screen you remove above.
5. Replace the computer system’s cover.
6. Set up the BIOS if necessary.
7. Install the necessary software driver for your expansion card.
2-5-2 Assigning IRQs For Expansion Card
Some expansion cards need an IRQ to operate. Generally, an IRQ must exclusively assign
to one use. In a standard design, there are 16 IRQs available but most of them are already
in use.
Figure 2-4

12
Standard Interrupt Assignments
IRQ Priority Standard function
0 N/A System Timer
1 N/A Keyboard Controller
2 N/A Programmable Interrupt
3 * 8 Communications Port (COM2)
4 * 9 Communications Port (COM1)
5 * 6 Sound Card (sometimes LPT2)
6 * 11 Floppy Disk Controller
7 * 7 Printer Port (LPT1)
8 N/A System CMOS/Real Time Clock
9 * 10 ACPI Mode when enabled
10 * 3 IRQ Holder for PCI Steering
11 * 2 IRQ Holder for PCI Steering
12 * 4 PS/2 Compatible Mouse Port
13 N/A Numeric Data Processor
14 * 5 Primary IDE Channel
15 * 1 Secondary IDE Channel
* These IRQs are usually available for ISA or PCI devices.
2-5-3 Interrupt Request Table For This Motherboard
Interrupt request are shared as shown the table below:
INT A INT B INT C INT D
PCI slot 1 Shared 
PCI slot 2 Shared 
PCI slot 3 Shared 
PCI slot 4 Shared
PCI slot 5 Shared 
AGP slot Shared 
AC97/MC97 Shared 
Onboard USB Shared
Onboard USB 1 Shared
Onboard USB 2 Shared
IMPORTANT! If using PCI cards on shared slots, make sure that the drivers support “Shared
IRQ” or that the cards don’t need IRQ assignments. Conflicts will arise between
the two PCI groups that will make the system unstable or cards inoperable.
2-5-4 AGP Slot
This motherboard provides an AGP Slot, support the 4X/8X AGP VGA card.
AGP SLOT

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2-6 Connectors, Headers
2-6-1 Connectors
(1) Power Connector (20-pin block) : PWR
ATX Power Supply connector. This is a new defined 20-pins connector that usually
comes with ATX case. The ATX Power Supply allows to use soft power on momentary
switch that connect from the front panel switch to 2-pins Power On jumper pole on the
motherboard. When the power switch on the back of the ATX power supply turned on,
the full power will not come into the system board until the front panel switch is
momentarily pressed. Press this switch again will turn off the power to the system board.
PIN ROW2 ROW1
1 3.3V 3.3V
2 -12V 3.3V
3 GND GND
4 Soft Power On 5V
5 GND GND
6 GND 5V
7 GND GND
8 -5V PowerOK
9 +5V +5V (for Soft Logic)
10 +5V +12V
Pin 1
(2) PS/2 Mouse & PS/2 Keyboard Connector: KYB
The connectors for PS/2 keyboard and PS/2 Mouse.
(3) USB Port connector: USB/USB1
The connectors are 4-pin connector that connect USB devices to the system board.
(4) LAN Port connector: LAN (for 7NFU400N/7NFG400N only)
The connector is standard RJ45 connector for network connection
(5) Parallel Port Connector (25-pin female): LPT
Parallel Port connector is a 25-pin D-Subminiature Receptacle connector. The On-board
Parallel Port can be disabled through the BIOS SETUP. Please refer to Chapter 3
“INTEGRATED PERIPHERALS SETUP” section for more detail information.
(6) Audio Connector : LINE-OUT/LINE-IN/MIC
This Connector are 3 phone Jack for LINE-OUT, LINE-IN, MIC
LINE_O : Audio output to speaker(Front Speaker on 6-channel)
LINE_I : Audio input to sound chip(Rear Speaker on 6-channel)
MIC : Microphone Connector (Center-Base Speaker on 6-channel)
(7) VGA Connector (15-pin D-Sub) Connector: VGA (for 7NFG400/7NFG400N only)
VGA is the 15-pin D-Subminiature female connector for display monitor.
(8) Serial Port COM1,COM2A : COM1, COM2A (COM2A for 7NFU400/7NFU400N)
COM1, COM2A are the 9-pin D-Subminiature mail connector. The On-board serial port
can be disabled through BIOS SETUP. Please refer to Chapter 3 “INTEGRATED
PERIPHERALS SETUP” section for more detail information.

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(9) Floppy drive Connector (34-pin block): FDD
This connector supports the provided floppy drive ribbon cable. After connecting the
single plug end to motherboard, connect the two plugs at other end to the floppy
drives.
Pin 1
Floppy Drive Connector
(10) Primary IDE Connector (40-pin block): IDE1
This connector supports the provided IDE hard disk ribbon cable. After connecting
the single plug end to motherboard, connect the two plugs at other end to your hard
disk(s). If you install two hard disks, you must configure the second drive to Slave
mode by setting its jumpers accordingly. Please refer to the documentation of your
hard disk for the jumper settings.
(11) Secondary IDE Connector (40-pin block): IDE2
This connector connects to the next set of Master and Slave hard disks. Follow the
same procedure described for the primary IDE connector. You may also configure
two hard disks to be both Masters using one ribbon cable on the primary IDE
connector and another ribbon cable on the secondary IDE connector.
Pin 1
IDE2
Pin 1
IDE1
USB1
LINE-OUT
LINE-IN
MIC
PS/2 Mouse PRINT LAN
COM1 VGA/COM2A
(Option)
PS/2 Keyboard USB

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• Two hard disks can be connected to each connector. The first HDD is referred to as the
“Master” and the second HDD is referred to as the “Slave”.
• For performance issues, we strongly suggest you don’t install a CD-ROM or DVD-ROM
drive on the same IDE channel as a hard disk. Otherwise, the system performance on this
channel may drop.
2-6-2 Headers
(1) Serial Port2 COM2 Header (9-pin) : COM2 (only for 7NFG400/7NFG400N)
COM2
Pin 1 Note: Orient the read marking on the
COM2 ribbon cable to pin 1
Serial Port2 COM2 Header
(2) VGA Port2 Header (15-pin) : VGA1 (only for 7NFG400/7NFG400N)
This header is for secondary CRT Display by optional bracket users can get the
secondary CRT display for dual Monitor output.
Note: Because VGA port 2 bracket works with the onboard graphic core. When
plug in external VGA card in AGP slot, the VGA port2 bracket will not function.
Pin 1
VGA Port2 Header
(3) Line-Out, MIC Header (9-pin): AUDIO
This header connect to Front Panel Line-out, MIC connector with cable.
Line-Out, MIC Headers
AUDIO
Pin 1
AUD_MIC
AUD_FPOUT_L
AUD_MIC_BIAS
AUD_FPOUT_R
HP_ON
AUD_GND
AUD_RET_L
AUD_RET_R
AUD_VCC
2
9
10

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(4) GAME Port Header (15-pin) : GAME
This 15-pin header can through a cable with a 15-pin D-Subminiature Receptacle Connector
for joystick/MIDI Device.(Cable option)
Pin 1
GAME Port Header
(5) USB Port Header (9-pin) : USB2
The header are used for connecting the additional USB port plug. By attaching an option
USB cable, your can be provided with two additional USB plugs affixed to the back panel.
USB Port Headers
Pin 1
USB2
VCC
-DATA
GND
+DATA
VCC
OC
-DATA
GND
+DATA
(6) IDE Activity LED: HD LED
This connector connects to the hard disk activity indicator light on the case.
(7) Reset switch lead: RESET
This 2-pin connector connects to the case-mounted reset switch for rebooting your
computer without having to turn off your power switch. This is a preferred method
of rebooting in order to prolong the lift of the system’s power supply. See the figure
below.
(8) Speaker connector: SPEAK
This 4-pin connector connects to the case-mounted speaker. See the figure below.
(9) Power LED: PWR LED
The Power LED is light on while the system power is on. Connect the Power LED
from the system case to this pin.
(10) Power switch: PWR BTN
This 2-pin connector connects to the case-mounted power switch to power ON/OFF the
system.

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System Case Connections
HDLED
RESET
VCC5
GND
VCC5 PWR LED
PWRBTN
PWRBTN
PWRLED
HDDLED
RSTSW
NC
GND
FPSPEAK
SPKR
GND
NC
VCC5
Pin 1
Pin 1
(11) Wake On-LAN Headers (3-pin) : WOL
This connector connects to a LAN card with a WAKE ON-LAN output. This
connector power up the system when a wake up signal is received through the LAN
card.
NOTE: This feature requires that Wake On LAN or Ring In Wake up is enabled.
Wake-On-LAN Headers
WOL
1 3
5VSB GND WOL
(12) FAN Speed Headers (3-pin) : SFAN1, SFAN2, CPUFAN
These connectors support cooling fans of 350mA (4.2 Watts) or less, depending on the
fan manufacturer, the wire and plug may be different. The red wire should be positive,
while the black should be ground. Connect the fan’s plug to the board taking into
consideration the polarity of connector.
CPUFAN
1 3
SFAN2
1 3
SFAN1
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