AOpen AX4SPEMAX User Manual
AAXX44SSPPEE MMaaxx OOnnlliinnee
AX4SPE Max
DOC. NO.: AX4SPEMAX-OL-E0306B
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Overview
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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TUAX4SPE MaxUT.............................................................................................................................................1
TUWhat’s in this manualUT .................................................................................................................................................................... 2
TUYou Must NoticeUT ............................................................................................................................................................................ 9
TUBefore You StartUT .......................................................................................................................................................................... 10
TUOverviewUT ......................................................................................................................................................................................11
TUFeature HighlightUT ......................................................................................................................................................................... 12
TUQuick Installation ProcedureUT ....................................................................................................................................................... 17
TUMotherboard MapUT ........................................................................................................................................................................ 18
TUBlock DiagramUT ............................................................................................................................................................................. 19
TUHardware InstallationUT ............................................................................................................................20
TUAbout “User Upgrade Optional” and “Manufacture Upgrade Optional”…UT ................................................................................... 21
TUJP14 Clear CMOS DataUT .............................................................................................................................................................. 22
TUCPU InstallationUT...........................................................................................................................................................................23
TUCPU Fan InstallationUT ...................................................................................................................................................................25
TUCPU Jumper-less DesignUT ............................................................................................................................................................ 26
TUCPU Over-current ProtectionUT ......................................................................................................................................................27
TUBattery-less and Long Life DesignUT ..............................................................................................................................................28
TUAOpen “Watch Dog ABS”UT............................................................................................................................................................ 29
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TUFull-range Adjustable CPU Core VoltageUT ....................................................................................................................................30
TUCPU and System Fan Connector (with H/W Monitoring)UT ............................................................................................................ 32
TUJP28 Keyboard/Mouse Wake-up JumperUT....................................................................................................................................33
TUDIMM SocketsUT ............................................................................................................................................................................. 34
TUATX Power ConnectorUT.................................................................................................................................................................36
TUAC Power Auto RecoveryUT............................................................................................................................................................36
TUIDE and Floppy ConnectorUT .......................................................................................................................................................... 37
TUSerial ATA SupportedUT ..................................................................................................................................................................39
TUConnecting Serial ATA DiskUT......................................................................................................................................................... 40
TUSupport RAID 0 and RAID 1UT........................................................................................................................................................43
TUFront Panel ConnectorUT ................................................................................................................................................................ 44
TUAGP (Accelerated Graphic Port) 8X Expansion SlotUT................................................................................................................... 45
TUAGP Protection Technology and AGP LEDUT .................................................................................................................................46
TUWOL (Wake on LAN)UT...................................................................................................................................................................47
TUIrDA ConnectorUT............................................................................................................................................................................49
TUSupport 10/100/1000 Mbps LAN onboardUT................................................................................................................................... 50
TUSupport USB 2.0 PortsUT ................................................................................................................................................................ 51
TUIEEE 1394 ConnectorsUT................................................................................................................................................................ 52
TUGame Port Bracket SupportedUT .................................................................................................................................................... 53
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TUColor Coded Back PanelUT ............................................................................................................................................................. 54
TUS/PDIF (Sony/Philips Digital Interface) ConnectorUT ...................................................................................................................... 55
TUSuper 5.1 Channel Audio EffectUT .................................................................................................................................................. 56
TUFront Audio ConnectorUT ................................................................................................................................................................57
TUDie-Hard BIOSUT ............................................................................................................................................................................58
TUJP15/JP16 Dr. Voice Language Select JumpersUT.........................................................................................................................60
TUJP2 Speaker Output JumperUT ....................................................................................................................................................... 61
TUCD Audio ConnectorUT ................................................................................................................................................................... 62
TUAUX-IN ConnectorUT.......................................................................................................................................................................63
TUCase Open ConnectorUT.................................................................................................................................................................64
TUSTBY LED (Standby LED)UT...........................................................................................................................................................65
TUResetable FuseUT ........................................................................................................................................................................... 66
TUEnlarged Aluminum HeatsinkUT ...................................................................................................................................................... 67
TULow ESR CapacitorUT ..................................................................................................................................................................... 68
TUThe noise is gone!! ---- SilentTekUT ................................................................................................................................................ 70
TUEzClockUT .......................................................................................................................................................................................73
TUHyper Threading T echnologyUT ......................................................................................................................................................77
TUAOConfig UtilityUT ........................................................................................................................................................................... 79
TURAID IntroductionUT ..................................................................................................................................81
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TUWhat’s RAID?UT.............................................................................................................................................................................. 81
TUWhat are the RAID levels?UT .......................................................................................................................................................... 82
TUHDD Capacity of RAID LevelsUT.....................................................................................................................................................85
TUSerial ATA RAID for Intel ICH5RUT..................................................................................................................................................86
TUSerial ATA RAID for Silicon Image 3112AUT ...................................................................................................................................88
TUPhoenix-AWARD BIOSUT ............................................................................................................................93
TUHow To Use Phoenix-Award™ BIOS Setup ProgramUT ................................................................................................................. 94
TUHow To Enter BIOS SetupUT........................................................................................................................................................... 95
TUWinBIOS UtilityUT............................................................................................................................................................................ 96
TUBIOS Upgrade under Windows environmentUT ..............................................................................................................................98
TUVivid BIOS technologyUT...............................................................................................................................................................100
TUDriver and UtilityUT ..................................................................................................................................101
TUAuto-run Menu from Bonus CDUT ................................................................................................................................................. 101
®
TUInstalling IntelUPU
TUInstalling Onboard Sound DriverUT ............................................................................................................................................... 103
TUInstalling Intel Application Accelerator RAID Edition Driver in Windows 2000/XPUT .............................................................................104
TUInstalling LAN DriverUT..................................................................................................................................................................105
TUInstalling USB 2.0 DriverUT ............................................................................................................................................................112
TUInstalling Silicon Image SiI3112A SATA Raid DriverUT...................................................................................................................117
UPU
Chipset Software Installation UtilityUT .................................................................................................................. 102
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TUGlossaryUT ...............................................................................................................................................124
TUAC97 CODECUT ...........................................................................................................................................................................124
TUACPI (Advanced Configuration & Power Interface)UT .................................................................................................................. 124
TUACR (Advanced Communication Riser)UT .................................................................................................................................... 124
TUAGP (Accelerated Graphic Port)UT ............................................................................................................................................... 125
TUAMR (Audio/Modem Riser)UT .......................................................................................................................................................125
TUATA (AT Attachment)UT ................................................................................................................................................................. 125
TUBIOS (Basic Input/Output System)UT............................................................................................................................................ 126
TUBluetoothUT ................................................................................................................................................................................... 126
TUCNR (Communication and Networking Riser)UT........................................................................................................................... 127
TUDDR (Double Data Rate) RAMUT.................................................................................................................................................. 127
TUECC (Error Checking and Correction)UT....................................................................................................................................... 127
TUEEPROM (Electronic Erasable Programmable ROM)UT .............................................................................................................. 127
TUEPROM (Erasable Programmable ROM)UT..................................................................................................................................128
TUEV6 BusUT ....................................................................................................................................................................................128
TUFCC DoC (Declaration of Conformity)UT .......................................................................................................................................128
TUFC-PGA (Flip Chip-Pin Grid Array)UT............................................................................................................................................128
TUFC-PGA2 (Flip Chip-Pin Grid Array)UT ......................................................................................................................................... 128
TUFlash ROMUT ................................................................................................................................................................................ 129
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TUHyper ThreadingUT........................................................................................................................................................................ 129
TUIEEE 1394UT ................................................................................................................................................................................. 129
TUParity BitUT .................................................................................................................................................................................... 130
TUPCI (Peripheral Component Interface) BusUT............................................................................................................................... 130
TUPDF FormatUT............................................................................................................................................................................... 130
TUPnP (Plug and Play)UT .................................................................................................................................................................. 130
TUPOST (Power-On Self Test)UT ......................................................................................................................................................131
TUPSB (Processor System Bus) ClockUT .........................................................................................................................................131
TURDRAM (Rambus Dynamic Random Access Memory)UT ............................................................................................................ 131
TURIMM (Rambus Inline Memory Module)UT....................................................................................................................................131
TUSDRAM (Synchronous DRAM)UT .................................................................................................................................................131
TUSATA (Serial ATA)UT......................................................................................................................................................................132
TUSMBus (System Management Bus)UT ..........................................................................................................................................132
TUSPD (Serial Presence Detect)UT................................................................................................................................................... 132
TUUSB 2.0 (Universal Serial Bus)UT .................................................................................................................................................132
TUVCM (Virtual Channel Memory)UT ................................................................................................................................................133
TUWireless LAN – 802.11bUT ............................................................................................................................................................ 133
TUZIP fileUT .......................................................................................................................................................................................133
TUTroubleshootingUT ...................................................................................................................................134
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TUTechnical SupportUT ................................................................................................................................138
TUProduct RegistrationUT............................................................................................................................142
TUHow to Contact UsUT...............................................................................................................................143
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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 and Pentium 4 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
©
P
P
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
recommend using Adobe Acrobat Reader 5.0 for online viewing, it is included in
siteUTH.
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.
HTUPDF formatUTH, we
HBonus CDH or you can get free download from HTUAdobe web
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OOvveerrvviieeww
Thank you for choosing AOpen AX4SPE Max motherboard. AX4SPE Max is IntelP
factor featuring the
Socket 478 Pentium
which brings additional intelligence to systems. In the
spilt-transaction long burst transfer up to 2112MB/sec. According to different customer’s requirements, this motherboard supports
HTUDDR333UTH and HTUDDR400UTH RAM up to 4GB maximum. The onboard IDE controller supports HTUUltra DMA 33/66/100UTH mode, HTUSerial ATAUTH 150 MB/s
®
P
Socket 478 motherboard (M/B) based on the ATX form
HTUIntel Springdale-PE chipsetsUTH. As high performance chipset built in the M/B, AX4SPE Max motherboard supports IntelP
®
P
P
4 1.6GHz~3.06GHz. It supports 400/533/800MHz Front Side Bus (HTUFSBUTH) clock and HTUHyper-ThreadingUTH Technology
HTUAGP UTHperformance, it has one AGP slot to support AGP 8X/4X mode and pipelined
HTUDDR266UTH,
and IDE Raid 0, Raid 1 mode. There are 6 PCI slots provided
on this board and two
UTH ports on the back panel and one connector on the board
2.0
HTUIEEE1394 UTHconnectors. A total of 6 HTUUSB
give you the best use of all USB devices with the fancy speed
up to 480Mbps. More than that, on the strength of integrated
Broadcom LAN controller on board, which is a highly integrated
platform LAN connect devices, it provides 10/100/1000M bps
Ethernet for office and home use. Besides, AX4SPE Max has
S/PDIF connector and an
HTUAC97 CODEC RealTek ALC650UHT
chipset onboard, providing high performance and magic
surround stereo sound to let people enjoy working with it. Now,
let’s enjoy all features from AOpen AX4SPE Max motherboard.
®
P
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FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports IntelP
478 technology.
®
P
Socket 478 PentiumP
®
P
4 (Northwood) 1.6GHz~3.06GHz+ with 400/533/800MHz Front Side Bus (FSB) designed for Socket
Chipset
Springdale-PE is a Memory Controller Hub (MCH) designed for use with the Pentium 4 processor with 512-KB L2 cache on 0.13 micron
processor. It provides CPU, DDR, AGP, Hub and CSA Interfaces. The CPU interface supports Pentium 4 processor subset of the Extended
Mode of the Scalable Bus Protocol. The MCH memory interface supports one up to two channels of DDR, and the AGP interface supports
0.8/1.5V signaling with 8X/4X data transfers and 8X/4X AGP Fast Writes. The Springdale-PE platform supports the fifth generation I/O
Controller Hub (ICH5R).
The ICH5R integrates an Ultra ATA 100 controller, two Serial ATA host controllers, one EHCI host controller and four UHCI host controllers
supporting eight external USB 2.0 ports, LPC interface controller; flash BIOS interface controller, PCI interface controller, AC’97 digital
controller, integrated LAN controller, integrated 1394 controller, an ASF controller and a hub interface for communication with the
Springdale-PE MCH.
Memory
With Springdale-PE chipset, this motherboard can support dual channel HTUDouble-Data-Rate (DDR) RAMUTH. The dual channel mode allows
chipsets to get data in 128 bit and zero wait state bursting between the RAM. The data transfer at 266/333/400MHz. The four slots of DDR
RAM can be composed of an arbitrary mixture of 64, 128, 256, 512 MB or 1GB DDR RAM and maximum up to 4GB.
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Expansion Slots
Including six 32-bit/33MHz PCI and one AGP 8X/4X slots. The HTUPCIUTH local bus throughput can be up to 132MB/s. Of six PCI slots provided,
all of them are master PCI slots with arbitration and decoding for all integrated functions and LPC bus. AX4SPE Max motherboard includes
one AGP expansion slot for a bus mastering AGP graphic card. The
video display sophistication and speed. The AGP video cards support data transfer rate up to 2112MB/s.
HTUAccelerated Graphics Port (AGP)UTH specification provides a new level of
AGP Protection Technology
With AGP Protection Technology implemented, this motherboard will automatically detect the voltage of AGP card and prevent your
chipsets from being burnt out.
Hyper-Threading Technology
Support Hyper-Threading Technology which brings additional intelligence to systems so that multiple tasks received from the processor can
be managed and prioritized more effectively.
Watch Dog ABS
Includes AOpen “Watch Dog ABS” function that can auto-reset system in 4.8 seconds when you fail the system overclocking.
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1MHz Stepping CPU Frequency Adjustment
Provides “1MHz Stepping CPU Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU FSB frequency
from 100~400MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
LAN Port
On the strength of Broadcom BCM5705, a fourth-generation triple-speed 10/100/1000 base-T Ethernet LAN Controller solution for
high-performance network applications, this motherboard provides 10/100/1000M bps Ethernet for office and home use.
Ultra DMA 33/66/100 Bus Mater IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that support four IDE devices in two channels, supports Ultra
DMA 33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.
Serial A TA
Integrated in ICH5R that contains independent DMA operation on two ports, the SATA controllers are completely software transparent with
the IDE interface, while providing a lower pin count and higher performance. The IC H5R SATA interface supports data transfer rates up to
150MB/s and RAID 0 and RAID 1. On the strength of the Silicon Image SATA controller, this motherboard provides two other SATA ports
(port 3 and port 4). This two ports support RAID 0 and RAID 1.
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On-board AC’97 Sound
AX4SPE Max uses RealTek AC97 CODEC RealTek ALC650 sound chip. This on-board audio includes a complete audio recording and
playback system.
Eight USB 2.0 Ports
Provides six ports on the back panel and one USB 2.0 connector on the board, providing a total of eight USB 2.0 interface to connect
devices such as mouse, keyboard, modem, scanner, etc.
Dr. Voice II
The Dr. Voice II can identify what kind of problems had occurred in the operating system. It provides four kinds language versions.
S/PDIF Connector
S/PDIF (Sony/Philips Digital Interface) is the newest audio transfer file format, which provides impressive quality through optical fiber and
allows you to enjoy digital audio instead of analog audio.
Power Management/Plug and Play
Supports the power management function which confirms to the power-saving standards of the U.S. Environmental Protection Agency (EPA)
Energy Star program. It also offers
user-friendlier.
HTUPlug-and-PlayUTH, which helps save users from configuration problems, thus making the system much
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Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor module.
SilentTek
Combines “Hardware-Status Monitoring”, “Overheat Warning” and “Fan Speed Control” with user-friendly interfaces to provide a perfect
balance among noises, system performance and stability.
Enhanced ACPI
®
Fully implement the HTUACPIUTH standard for WindowsP
STD (Suspend to Disk, S4) and S5 features.
P
98/ME/2000/XP series compatibility, and supports Soft-Off, STR (Suspend to RAM, S3),
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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 HTUCPUUTH and HTUFanUTH
2. HTUInstalling System Memory (DIMMUTH)
3. HTUConnecting Front Panel CableUTH
4. HTUConnecting IDE and Floppy CableUTH
5. HTUConnecting ATX Power CableUTH
6. HTUConnecting Back Panel CableUTH
7. HTUPower-on and Load BIOS Setup DefaultUTH
8. HTUSetting CPU FrequencyUTH
9. Reboot
10. Installing Operating System (such as Windows XP)
11. HTUInstalling Driver and UtilityUTH
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Motherboard Map
AC’97 CODEC
HTAUX-INTH Connector
CD-IN Connector
S/PDIF Connector
HT
Front Audio ConnectorTH
HT32-bit PCI Expansion Slot x6TH
IrDA Connector
Game Port Connector
USB 2.0 ConnectorTH
HT
SATA Port x 4
IEEE1394 Connector x 2
Wake on LAN Connector
SYSHTFAN3 ConnectorTH
JP24 BIOS Rescue Jumper
HT
Front Panel ConnectorTH
JP14 CMOS Clear JumperTH
HT
HTCase Open ConnectorTH
STBY LED
-
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HTColored Back PanelTH
Resetable FuseTH
HT
JP28 Keyboard/Mouse
Wakeup Jumper
HTFAN2TH Connector
SYS
HT
4-pin 12V. ATX Power ConnectorTH
HT
Low ESR CapacitorsTH
AGP Protection LED
HTAGP 8x Expansion SlotTH
HT478-pin CPU socket (Northwood)
with Voltage and Frequency
Auto-detection that supports Intel
®
P
Pentium
P
4 1.6~3.06GHz+ CPUTH
CPUFAN1 connector
Springdale-PE Chipset that
supports 400/533/800MHz
FSB,
H184-pin DIMMx4 support
DDR400/333/266 SDRAM
maximum up to 4GB
ATX Power ConnectorTH
HT
JP2 Speaker Output Connector
JP15/JP16 Dr. Voice II
Language Select Jumper
HT
ATA66/100 IDE Connector x2TH
FDD ConnectorTH
HT
®
P
P
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BBlloocckk DDiiaaggrraamm
Socket 478
Intel Pentiu m 4
CPU (Northwood)
AGP 8X Sl ot
LAN connect Component
533/800MHz
System Bus
AGP bus
Floppy Disk Drive x2
DDR400/333/266 Dual Channel
RAM Up to 4GB
DIMM Socket x4
Intel
Springdale-PE
Broadcom
BCM5705
USB Port x8
PCI Bus
USB Port
USB Port
USB Port
USB Port
32-bit PCI Slot x6
2 Serial AT A Por ts
150MB/s
Silicon Imag e
SATA Controller
ATA 66/100
Primary
Channel
Secondary
Channel
ICH5R
SATA 3
SATA 4
SATA 1
SATA 2
RealTek
AC97
CODEC
4Mbit Flash EEPROM
4Mbit Flash EEPROM
Parallel Port
Serial Port x2
IEEE1394 x2
IEEE1394 x2
IDE Drive x4
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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 ““UUsseerr UUppggrraaddee OOppttiioonnaall”” aanndd ““MMaannuuffaaccttuurree UUppggr
When you read this online manual and start to assemble your computer system, you may notice that some of the functions are marked as
“User Upgrade Optional” or “Manufacture Upgrade Optional”. Although all of AOpen’s motherboards have included many amazing and
powerful features, sometimes not every user is familiar with these powerful features. As a result of this we define features that can be
upgraded by users as “User Upgrade Optional”. You can upgrade these functions by purchasing additional devices. As for functions that
cannot be upgraded by users, we define them as “Manufacture Upgrade Optional”. If need be, you can contact our local distributors or
resellers to purchase “Manufacture Upgrade Optional” components, and again you are also welcome to visit our official website at
HTUenglish.aopen.com.twUTH for detail information.
raaddee OOppttiioonnaall””……
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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 pin1 & pin2.
5. Connect ATX power cable back to connector PWR2.
Pin 1
1
Normal
default)
1
Clear CMOS
Tip: When should I Clear CMOS?
1. Boot fails because of overclocking…
2. Forget password…
3. Troubleshooting…
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This motherboard supports IntelP
socket.
1. Pull up the CPU socket lever and
up to 90-degree angle.
®
P
Pentium 4 Socket 478 series CPU (Willamette). Be careful of CPU orientation when you plug it into CPU
2. Locate Pin 1 in the socket and look for mark on the CPU upper interface.
Match Pin 1 and cut edge, then insert the CPU into the socket.
Note: Those pictures are for example only; they may not look the same with the motherboard you purchased.
CPU socket
Lever
CPU pin 1 and
cut edge
CPU 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 look the same with the motherboard you purchased.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, you
ma
damage the CPU.
Note: This socket supports
Micro-FC-PGA2 package CPU, which is
the latest CPU package developed by
Intel. Other forms of CPU package are
impossible to be fitted in.
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This motherboard comes with a retention module attached on the CPU socket when shipped, we strongly recommend you to install AOpen
special designed CPU Fan as shown below on the retention module for better heat dissipation. Please install the CPU Fan correctly as the
following pictures shown.
1. Gently put the CPU Fan down on the
retention module with clips aligning correctly
to the four corners.
Note: The picture above may look different from the product you purchased.
2. Pressing down the four clips with force one by one
on the retention module.
Clip
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CPU VID signal and HTUSMbusUTH clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency through the
BIOS setup, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less designs are eliminated.
There will be no worry of wrong CPU voltage detection.
CPU VID signal
(Automatically generates CPU voltage)
IntelP
Power Regulator
®
P
Socket 478
Pentium 4
CPU voltage
Clock Generator
CPU Freq. Ratio
BIOS
Controlled
Circuit
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The Over Current Protection is a popular implementation on ATX 3.3V/5V/12V switching power supply. However, the new generation CPU
uses different voltage with a regulator to transfer 12V to CPU voltage (for example, 2.0V), and thus makes 5V over current protection
useless. This motherboard is with switching regulator onboard supporting CPU over-current protection; in conjunction with 3.3V/5V/12V
power supply provide the full line over-current protection.
ATX Switching Power Supply
Note: Although we have implemented protection circuit try to prevent any human operating mistake,
there is still certain risk that CPU, memory, HDD, add-on cards installed on this motherboard may be
damaged because of component failure, human operating error or unknown nature reason. AOpen
cannot guaranty the protection circuit will always work perfectly.
12V (Protected by power supply)
3.3V (Protected by power supply)
5V (Protected by power supply)
Onboard Power Regulator
(Over-Current Protection)
CPU Core Voltage
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This Motherboard implements a HTUFlash ROMUTH and a special circuit that provide you no batter power consumption of current CPU and CMOS
Setup configurations. The RTC (real time clock) can also keep running as long as the power cord is plugged. If you lose your CMOS data
by accident, you can just reload the CMOS configurations from Flash ROM and the system will recover as usual.
ATX Stand-by Power
Battery
Flash ROM
(Real Time Clock)
Auto Switch
RTC
00:00:00
CMOS
Auto switch to ATX standby
power as long as AC power line
is plugged. This smart design
increases battery life if you still
plug battery on motherboard.
Backup by EEPROM
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user’s settings stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will reset the system 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
a higher system performance without removing the system housing and save the hassle from setting the jumper to clear CMOS data when
system hangs.
AOpen
Watch Dog ABS
Enable/Disable Signal from
AOpen provides a special and useful feature on this motherboard for overclockers. When you
power-on the system, the BIOS will check last system
enable “Watch Dog ABS” function immediately, and set the CPU FSB frequency according to
BIOS
BIOS
Reset Signal
Clock Generator
Countdown about
5 seconds if fails
in POST
CPU
HTUPOSTUTH status. If it succeeded, the BIOS will
CPU ID Signal
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This function is dedicated to overclockers and supports Adjustable CPU Core Voltage from 1.10V to 2.025V. However, this motherboard can
also automatically detect CPU VID signal and generates proper CPU core voltage.
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BIOS Setup > Frequency/Voltage Control > CPU Bus Frequency
This motherboard is CPU jumper-less design, you can set CPU frequency in BIOS; no jumpers or switches are needed. The default setting
is "table select mode". You can adjust the FSB from "CPU Host/RAM/PCI Clock" for overclocking.
Core Frequency = CPU FSB Clock * CPU Ratio
PCI Clock = CPU FSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU Ratio 8x, 10x… 21x, 22x, 23x, 24x
CPU FSB (By BIOS table) 100-400MHz
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