AOpen AK76F400N User Manual
AAKK7766FF--440000NN OOnnlliinnee MMaannuuaall
AK76F-400N
DOC. NO.: AK76F400N-OL-E0309B
Overview
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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WWhhaatt’’ss iinn tthhiiss mmaannuuaall
AK76F-400N............................................................................................................................................................................1
What’s in this manual.................................................................................................................................................................... 2
You Must Notice............................................................................................................................................................................8
Before You Start............................................................................................................................................................................9
Overview .....................................................................................................................................................................................10
Feature Highlight..........................................................................................................................................................................11
Quick Installation Procedure .......................................................................................................................................................14
Motherboard Map........................................................................................................................................................................15
Block Diagram.............................................................................................................................................................................16
Hardware Installation...........................................................................................................................................................17
About “Optional” and “Upgrade Optional”…................................................................................................................................18
JP14 Clear CMOS Data.............................................................................................................................................................. 19
CPU Installation...........................................................................................................................................................................20
JP30, 31, 32, 33 CPU Ratio Select Jumper................................................................................................................................ 22
CPU Jumper-less Design............................................................................................................................................................23
AOpen Overheat Protection (O.H.P.) Technology....................................................................................................................... 27
1MHz Stepping AGP/PCI Overclocking....................................................................................................................................... 28
CPU and System Fan Connector (with H/W Monitoring) ............................................................................................................29
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JP27/JP28 Keyboard/Mouse Wake-up Enable/Disable Jumper................................................................................................. 30
DIMM Sockets.............................................................................................................................................................................31
Front Panel Connector................................................................................................................................................................ 33
ATX Power Connector.................................................................................................................................................................34
AC Power Auto Recovery............................................................................................................................................................34
IDE and Floppy Connector..........................................................................................................................................................35
S/PDIF (Sony/Philips Digital Interface) Connector......................................................................................................................37
Super 5.1 Channel Audio Effect..................................................................................................................................................38
IrDA Connector............................................................................................................................................................................39
AGP (Accelerated Graphic Port) Expansion Slot........................................................................................................................ 40
AGP Protection Technology ........................................................................................................................................................41
STBY LED...................................................................................................................................................................................42
WOM by External BOX Modem...................................................................................................................................................43
PC99 Color Coded Back Panel...................................................................................................................................................44
Support 10/100 Mbps LAN onboard............................................................................................................................................ 45
JP13 LAN Enable/Disable Jumper..............................................................................................................................................46
Support Six USB Connectors......................................................................................................................................................47
Chassis Intrusion Connector....................................................................................................................................................... 48
CD Audio Connector ................................................................................................................................................................... 49
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AUX-IN Connector.......................................................................................................................................................................50
Front Audio Connector ................................................................................................................................................................51
Battery-less and Long Life Design ..............................................................................................................................................52
Over-current Protection...............................................................................................................................................................53
Resettable Fuse.......................................................................................................................................................................... 54
2200µF Low ESR Capacitor........................................................................................................................................................ 55
Layout (Frequency Isolation Wall)............................................................................................................................................... 56
Pure Aluminum Heatsink.............................................................................................................................................................57
Vivid BIOS technology.................................................................................................................................................................58
The noise is gone!! ---- SilentTeK................................................................................................................................................59
Driver and Utility ..................................................................................................................................................................62
Auto-run Menu from Bonus CD Disc...........................................................................................................................................63
AOConfig Utility...........................................................................................................................................................................64
Installing Onboard Sound Driver................................................................................................................................................. 66
Installing SiS AGP Driver............................................................................................................................................................. 67
PHOENIX-AWARD BIOS.......................................................................................................................................................68
About PHOENIX-AWARD BIOS Function Description…............................................................................................................ 69
How To Use Phoenix-Award™ BIOS Setup Program................................................................................................................. 70
How To Enter BIOS Setup........................................................................................................................................................... 72
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BIOS Upgrade under Windows environment ..............................................................................................................................73
VGA Card & Hard Disk................................................................................................................................................................ 75
Glossary.................................................................................................................................................................................76
AC97 CODEC .............................................................................................................................................................................76
ACPI (Advanced Configuration & Power Interface) .................................................................................................................... 76
ACR (Advanced Communication Riser)......................................................................................................................................76
AGP (Accelerated Graphic Port)................................................................................................................................................. 77
AMR (Audio/Modem Riser) .........................................................................................................................................................77
ATA (AT Attachment)...................................................................................................................................................................77
BIOS (Basic Input/Output System).............................................................................................................................................. 78
Bluetooth..................................................................................................................................................................................... 78
CNR (Communication and Networking Riser)............................................................................................................................. 79
DDR (Double Data Rate) RAM.................................................................................................................................................... 79
ECC (Error Checking and Correction)......................................................................................................................................... 79
EEPROM (Electronic Erasable Programmable ROM) ................................................................................................................80
EPROM (Erasable Programmable ROM)....................................................................................................................................80
EV6 Bus ......................................................................................................................................................................................80
FCC DoC (Declaration of Conformity)......................................................................................................................................... 80
FC-PGA (Flip Chip-Pin Grid Array)..............................................................................................................................................80
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FC-PGA2 (Flip Chip-Pin Grid Array) ...........................................................................................................................................81
Flash ROM.................................................................................................................................................................................. 81
Hyper Threading.......................................................................................................................................................................... 81
IEEE 1394................................................................................................................................................................................... 81
Parity Bit......................................................................................................................................................................................82
PCI (Peripheral Component Interface) Bus................................................................................................................................. 82
PDF Format................................................................................................................................................................................. 82
PnP (Plug and Play)....................................................................................................................................................................83
POST (Power-On Self Test)........................................................................................................................................................ 83
PSB (Processor System Bus) Clock ...........................................................................................................................................83
RDRAM (Rambus Dynamic Random Access Memory).............................................................................................................. 83
RIMM (Rambus Inline Memory Module)......................................................................................................................................84
SDRAM (Synchronous DRAM) ...................................................................................................................................................84
SATA (Serial ATA)........................................................................................................................................................................84
SMBus (System Management Bus)............................................................................................................................................ 84
SPD (Serial Presence Detect)..................................................................................................................................................... 85
USB 2.0 (Universal Serial Bus)................................................................................................................................................... 85
VCM (Virtual Channel Memory) ..................................................................................................................................................85
Wireless LAN – 802.11b..............................................................................................................................................................85
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ZIP file......................................................................................................................................................................................... 86
Troubleshooting...................................................................................................................................................................87
Technical Support................................................................................................................................................................91
Product Registration............................................................................................................................................................94
How to Contact Us ...............................................................................................................................................................95
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YYoouu MMuusstt NNoottiiccee
Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated.
AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc.
Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III are trademarks of Intel Corporation.
Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or
other countries.
All product and brand names used on this manual are used for identification purposes only and may be the registered trade marks of their
respective owners.
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right to revise
this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that may appear in this
manual, including the products and software described in it.
This documentation is protected by copyright law. All rights are reserved.
No part of this document may be used or reproduced in a ny form or by any means, or stored in a database or retrieval system
without prior written permission from AOpen Corporation.
Copyright
©
1996-2003, AOpen Inc. All Rights Reserved.
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BBeeffoorree YYoouu SSttaarrtt
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later chapters. Please
keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved in PDF format
recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD or you can get free download from Adobe web
site.
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper size and set
2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer driver.
Thanks for the help of saving our earth.
, we
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OOvveerrvviieeww
Thank you for choosing AOpen AK76F-400N motherboard. The AK76F-400N is AMD® Socket 462 motherboard (M/B) based on the ATX
form factor featuring the SIS 748 chipset
Socket 462 series Athlon™ XP & Athlon™ & Duron™ processor with 266/333/400MHz EV6
one AGP slot and supports AGP 2X/4X/8X mode and pipelined spilt-transaction long burst transfer up to 2112MB/sec. With high bandwidth
200/266MB/s 8-bit Multi-threaded I/O Link Host Controller, DDR266(PC2100)
applied to the AK76F-400N and the maximum memory size can be up to 3GB. The onboard IDE controller supports Ultra DMA
33/66/100/133 mode and the transfer rate up to 133MB/s. Besides, the AK76F-400N has an AC97
performance and magic surround stereo sound to let people enjoy working with it. Now,
let’s enjoy all features from AOpen AK76F-400N motherboard.
. As high performance chipset built in the M/B, the AK76F-400N motherboard can support AMD®
system bus. In the AGP performance, it has
, DDR333(PC2700) and DDR400(PC3200) DDR RAM can be
CODEC chipset onboard providing high
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FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports AMD® Socket 462 series CPU with 200MHz, 266MHz, 333MHz and 400MHz EV6 Bus designed for Socket 462 technology.
Athlon: 600MHz~1.4GHz
Duron: 600MHz~1.3GHz
AthlonXP: 1500
+
(1.33GHz)~3200+(2.2GHz)
Chipset
The motherboard is equipped with SIS 748 and SIS 963L chipset. SIS 748 chipset consists of host interface Controller and integrated high
performance DDR RAM
South-Bridge Masters Including IDE, USB, Audio, and Modem Controllers, which can strongly enhance the system performance.
Host system controller, which provide Dedicated High-Speed Data Paths connecting North-Bridge and Each
Expansion Slots
Including five 32-bit/33MHz PCI, and one AGP 2X/4X/8X slots. The PCI local bus throughput can be up to 132MB/s. The Accelerated
Graphics Port (AGP) specification provides a new level of video display sophistication and speed. The AGP video cards support data
transfer rate up to 2112MB/s. AK76F-400N motherboard includes one AGP expansion slot for a bus mastering AGP graphic card. For AD
and SBA signaling, AK76F-400N motherboard can support 2X/4X/8X mode. Of five PCI slots provided, AK76F-400N supports all five
master PCI slots with arbitration and decoding for all integrated functions and LPC bus.
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Memory
With SIS 748 chipset, the AK76F-400N can support Double-Data-Rate (DDR) RAM. The DDR RAM interface allows zero wait state bursting
between the SDRAM and the data buffers at 33/66/100MHz. The six banks of DDR RAM can be composed of an arbitrary mixture of
16M/64M/128M/256M/512Mx1GB DDR RAM and maximum up to 3 GB.
Ultra DMA 33/66/100/133 Bus Ma ster IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels, supports Ultra
DMA 33/66/100/133, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.
On-board AC’97 Sound
AK76F-400N uses the onboard AC'97 CODEC sound chip. This on-board audio includes a complete audio recording and playback system.
S/PDIF Connectors
S/PDIF (Sony/Philips Digital Interface) is a newest audio transfer file format, which provides impressive quality through optical fiber and
allows you to enjoy digital audio instead of analog audio.
Six USB Connectors
Provides three ports, six USB connectors for USB interface devices, such as mouse, keyboard, modem, scanner, etc.
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1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust CPU FSB frequency from
100~255 by 1MHz stepping, and lets your system can get maximum performance.
Watch Dog ABS Timer
Includes AOpen “Watch Dog ABS” function that can auto-reset default setting in 4.8 seconds when you fail to system overclocking.
Power Management/Plug and Play
Supports the power management function that confirms to the power-saving standards of the U.S. Environmental Protection Agency (EPA)
Energy Star program. It also offers Plug-and-Play
user-friendlier.
, which helps save users from configuration problems, thus making the system much
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor module.
Super Multi-I/O
Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART can also be directed
from COM1 to the Infrared Module for the wireless connections.
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
1. Installing CPU and Fan
2. Installing System Memory (DIMM)
3. Connecting Front Panel Cable
4. Connecting IDE and Floppy Cable
5. Connecting ATX Power Cable
6. Connecting Back Panel Cable
7. Power-on and Load BIOS Setup Default
8. Setting CPU Frequency
9. Reboot
10. Installing Operating System (such as Windows 98)
11. Installing Driver and Utility
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(
pp
)
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Motherboard Map
AC’97 CODEC
S/PDIF Connector
Joystick Connector
JP13 LAN Disable/Enable Jumper
CD-IN
AUX-IN
32-bit PCI Expansion Slot x5
Buzzer
South Bridge: SiS963 Chipset
Su
SFAN2 Connector (H/W Monitor)
Flash ROM
JP14 CMOS Clear Jumper
orts the 3rd USB Connector
Case Open Connector
IrDA Connector
Front Panel Connector
FDD Connector
Front Audio Connector
Ethernet Controller
PC99 Colored Back Panel
Resettable Fuse
JP27 Wakeup on KB/MS select Jumper
ATX Power Connector
JP28 Wakeup on KB/MS select Jumper
2200μF Low ESR Capacitors
SYSFAN3 Connector
462-pin CPU Socket with Voltage and
Frequency Auto-Detection that supports
TM
AthlonTM / DuronTM / and
AMD
TM
Athlon
XP ( with CPU Overheat
Protection circuit to Athlon
only)
CPUFAN1 Connector (H/W Monitor
JP30~33 CPU Ratio Select Jumper
SIS 748 Chipset
184-pin DIMM supports DDR RAM
DDR400 (DIMMx2 Max. to 2GB)
DDR333 (DIMMx3 Max. to 3GB)
DDR266
AGP 8x Expansion Slot
IDE Connector x2
DIMMx3 Max. to 3GB)
ATA66/100/133
TM
XP CPU
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BBlloocckk DDiiaaggrraamm
AthlonXP/Athlon/Duron
AGP 3.0 8X Mode
Socket 462
AMD
CPU
Fast Write
Floppy Disk Drive x2
DDR400 (DIMMx2,
Max. to 2GB)
DDR333 (DIMMx3,
Max. to 3GB)
DDR266 (DIMMx3,
Max. to 3GB)
DIMM Socket x3
SIS
748
MuTIOL
SIS
963L
1stUSB Port
2ndUSB Port
3rdUSB Port
USB
Connector x6
32-bit PCI Slot x5
PCI Bus
ATA66/100/133 Dual IDE
RTL8100
BL
Legacy Flash
ROM
Winbond
W83697
IR
AC Link
RealTek
ALC650/
ALC202A
AC97
CODEC
Serial Port x2
IDE Drive x4
Parallel Port
Game/Midi
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HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and
other components. Always observe the following precautions before you install a system component.
1. Do not remove a component from its protective packaging until you are ready to install it.
2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a
component. If a wrist strap is not available, maintain contact with the system unit throughout any
procedure requiring ESD protection.
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AAbboouutt ““OOppttiioonnaall”” aanndd ““UUppggrraaddee OOppttiioonnaall””……
When you read this online manual and start to assemble your computer system, you may find some of functions are called “Optional”, and
some are called “Upgrade Optional”. Though all AOpen motherboards include many amazing and powerful fea tures, in some situations,
these powerful features are not used to every user. Hence, we changed some key features as “Optional” for you to choose. Some optional
functions that can be upgraded by users, we call them “Upgrade Optional”. As for those optional functions that can’t be upgraded by
ourselves, we call them “Optional”. If needed, you can contact our local distributors or resellers for purchasing “Upgrade Optional”
components, and again you can visit AOpen official web site: english.aopen.com.tw
for more detail information.
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JJPP1144 CClleeaarr CCMMOOSS DDaattaa
You can clear CMOS to restore system default setting. To clear the CMOS, follow the procedure below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from connector PWR2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pin 1 & pin 2.
5. Connect ATX power cable back to connector PWR2.
Pin 1
1
Normal Operation
(default)
1
Clear CMOS
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
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CCPPUU IInnssttaallllaattiioonn
This motherboard supports AMD® Athlon and Duron Socket 462 series CPU. Be careful of CPU orientation when you plug it into CPU
socket.
1. Pull up the CPU socket lever and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for a black dot or cut edge on the CPU
upper interface. Match Pin 1 and cut edge, then insert the CPU into the
socket.
CPU socket
Lever
Note: These pictures are for example only, it may not exactly be the same motherboard.
CPU pin 1 and
cut edge
Black dot and
cut edge
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3. Press down the CPU socket lever and finish CPU
installation.
Note: This picture is for example only, it may not exactly be the same motherboard.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
ma
damage the CPU.
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JJPP3300,, 3311,, 3322,, 3333 CCPPUU RRaattiioo SSeelleecctt JJuummppeerr
This jumper is used to select CPU ration. The factory default setting is auto detection. Users do not have to adjust the jumper position if
your CPU ration can be detected automatically by system.
JP33 JP32 JP31 JP30 JP33 JP32 JP31 JP30
5.0 2-3 1-2 2-3 2-3 12.0 2-3 2-3 1-2 2-3
5.5 2-3 1-2 2-3 1-2 12.5 2-3 2-3 1-2 1-2
6.0 2-3 1-2 1-2 2-3 13.0 2-3 1-2 2-3 2-3
6.5 2-3 1-2 1-2 1-2 13.5 2-3 1-2 2-3 1-2
7.0 1-2 2-3 2-3 2-3 14.0 2-3 1-2 1-2 2-3
7.5 1-2 2-3 2-3 1-2 15.0 1-2 2-3 2-3 2-3
8.0 1-2 2-3 1-2 2-3 16.0 1-2 2-3 1-2 2-3
8.5 1-2 2-3 1-2 1-2 16.5 1-2 2-3 1-2 1-2
9.0 1-2 1-2 2-3 2-3 17.0 1-2 1-2 2-3 2-3
9.5 1-2 1-2 2-3 1-2 18.0 1-2 1-2 2-3 1-2
10.0 1-2 1-2 1-2 2-3 19.0 2-3 2-3 2-3 1-2
10.5 1-2 1-2 1-2 1-2 20.0 2-3 2-3 1-2 1-2
11.0 2-3 2-3 2-3 2-3 21.0 2-3 1-2 1-2 1-2
11.5 2-3 2-3 2-3 1-2 22.0 1-2 2-3 2-3 1-2
1 1 1 1
JP30
JP31
JP32
JP33
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AMD
CPU voltage
Clock Generator
CPU Freq. Ratio
BIOS
Controlled
Circuit
CCPPUU JJuummppeerr--lleessss DDeessiiggnn
CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency through the
BIOS setup
There will be no worry of wrong CPU voltage detection.
.
, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less designs are eliminated.
Socket A CPU
CPU VID signal
Power Regulator
(Automatically generates CPU voltage)
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AAOOppeenn ““WWaattcchh DDoogg AABBSS””
to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this special feature, you can easily
overclock your system to get higher system performance, and without removing the cover of system housing to set the jumper to clear
CMOS data when your system hanged.
AOpen
Watch Dog ABS
Enable/Disable Signal from
With this motherboard, AOpen provides a very special, useful feature for overclockers. When you
power-on the system, the BIOS will check last system POST
enable “Watch Dog ABS” function immediately, and set the CPU FSB
that stored in the BIOS. If system failed in BIOS POST, the “Watch Dog ABS” will reset the system
BIOS
BIOS
Reset Signal
Clock Generator
Countdown about
5 seconds if fails
in POST
CPU
status. If it succeeded, the BIOS will
frequency by user’s setting
CPU ID Signal
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SSeettttiinngg CCPPUU CCoorree VVoollttaaggee
This motherboard supports CPU VID function. The CPU core voltage will be automatically detected.
SSeettttiinngg CCPPUU FFrreeqquueennccyy
BIOS Setup > Frequency/Voltage Control > CPU Clock Setting
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no jumpers or switches are needed.
Core Frequency = CPU FSB Clock * CPU Ratio
PCI Clock = CPU FSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU Ratio From 5.0x to 22.0x
CPU FSB (By manual Adjustment)
Warning: SIS 748 Chipset supports maximum 400MHz system bus and
66MHz AGP clock; higher clock setting may cause serious system damage.
Please be informed that SiS748 A0 Chipset does not support
FSB=100~255 by 1MHz stepping adjustment technology
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CPU CPU Core Frequency EV6 Bus Clock Ratio
Athlon 1G 1GHz 266MHz 7.5x
Athlon 1.13G 1.13GHz 266MHz 8.5x
Athlon 1.2G 1.2GHz 266MHz 9.0x
Athlon 1.33G 1.33GHz 266MHz 10.0x
Athlon 1.4G 1.4GHz 266MHz 10.5x
AthlonXP 1500+ 1.3GHz 266MHz 10.0x
AthlonXP 1600+ 1.4GHz 266MHz 10.5x
AthlonXP 1700+ 1.46GHz 266MHz 11.0x
AthlonXP 1800+ 1.53GHz 266MHz 11.5x
AthlonXP 1900+ 1.6GHz 266MHz 12.0x
AthlonXP 2000+ 1.667GHz 266MHz 12.5x
AthlonXP 2100+ 1.73GHz 266MHz 13x
AthlonXP 2200+ 1.807GHz 266MHz 13.5x
AthlonXP 2400+ 2.0GHz 266MHz 15x
AthlonXP 2500+ (Barton) 2.0GHz 333MHz 11x
AthlonXP 2600+ 2.13GHz 266MHz 16x
AthlonXP 2700+ 2.16GHz 333MHz 13x
AthlonXP 2800+ (Barton) 2.083GHz 333MHz 12.5x
AthlonXP 3000+ (Barton) 2.167GHz 333MHz 13x
AthlonXP 3200+ (Barton) 2.2GHz 400MHz 11x
Duron 1G 1GHz 200MHz 10.0x
Duron 1.1G 1.1GHz 200MHz 11.0x
Duron 1.2G 1.2GHz 200MHz 12.0x
Duron 1.3G 1.3GHz 200MHz 13.0x
Note: With CPU speed changing rapidly, there might be fastest CPU on the market by the time you
received this installation guide. This table is kindly for your references only.
Note: This motherboard support
CPU auto-detection function.
Hence, you don’t need to setup
the CPU frequency manually.
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AAOOppeenn OOvveerrhheeaatt PPrrootteeccttiioonn ((OO..HH..PP..)) TTeecchhnnoollooggyy
With AMD platform substantially keeps increasing the speed of its CPU, it inevitably led to the annoying problem of high CPU operation
temperature at the same time. In order to prevent accidental failure of CPU fan, which could cause the bur ning down of the Athl onXP CPU,
we, AOpen, have meticulously developed a new technology, named, O.H.P. (Overheat Protection) Technology to protect them. Thanks to
the intelligent monitoring design of AOpen O.H.P. technology, user can now finally set their mind at ease even when fan failed to work
without fearing the possible damage of CPU,
Under the circumstances that CPU fan is running properly,
AthlonXP temperature should be way below the highest
temperature limit of 97 ℃ . However, if CPU fan accidentally
becomes malfunction or improperly installed, the CPU temperature
would rocket abruptly, and you may find your system hang up or
crying over the smoking CPU if you haven’t installed AOpen O.H.P.
previously. With AOpen O.H.P. technology applied, the specific
thermal detection pins on AthlonXP CPU would sense voltage
difference when processor is overheated with fan failed, and the
overheat protection system would immediately send out a signal to
abort your system by cutting CPU electricity before any damage is
done. Unlike other manufacturers who use BIOS or software to
control the power supply of CPU, AOpen O.H.P. Technology is
purely hardware-controlled the minute after system boot-up, and
occupies no system resource. We are pleasant to phase in this
practical function on all AOpen AMD series motherboards to protect
customer’s valuable hardware and personal data.
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11MMHHzz SStteeppppiinngg AAGGPP//PPCCII OOvveerrcclloocckkiinngg
For computer system, all components run with their fixed working frequencies; and all kinds of peripheral components frequencies run
interactively with CPU system frequency in a regular basis. Overclocking, a must-do-thing preferred by people these days, is done basically
by manually adjusting CPU FSB up above its standard rate through BIOS. AOpen provide sets of AGP/PCI frequencies for overclockers to
manually overclock AGP/PCI frequency while taking care of the system stability at the same time. AGP/PCI and CPU FSB will function
asynchronously. The available range of AGP frequency is from 66MHz to 96MHz and 33MHz to 48MHz for PCI frequency. With this solution
given, there would be no hassle from AGP/PCI overclocking, and thus PCI frequency would no longer be the headache of overclocking
anymore. Moreover, we provide sets of adjustable voltage setting of AGP card from 1.5V, 1.53V, 1.56V and 1.6V in BIOS.
Note：AGP frequency= PCI frequency X 2. The onboard sound device could be malfunction if PCI frequency is set too high.
Note:
The design of this product follows CPU and chipset
vendor's design guideline. Any attempts to push
beyond product specification are not recommended
and you are taking your own risk to damage your
system or important data. Before doing
overclocking, you must make sure your components
are able to tolerate such abnormal setting,
especially CPU, DDR RAM, hard disks, and AGP
cards.
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CCPPUU aanndd SSyysstteemm FFaann CCoonnnneeccttoorr ((wwiitthh HH//WW MMoonniittoorriinngg))
Plug in the CPU fan cable to the 3-pin CPUFAN1 connector. If you have chassis fan, you can also plug it on SYSFAN2 or SYSFAN3
connector.
GND
+12V
SENSOR
SYSFAN2 Connector
with Hardware Monitor
SYSFAN3 Connector
GND
+12V
NC
CPUFAN1 Connector
with Hardware Monitor
GND
+12V
SENSOR
Note: Some CPU fans do not have
sensor pin, so that cannot support
hardware monitoring function.
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