AOpen AX4CMAXII User Manual

AAXX44CC MMaaxx IIII O

AX4C Max II

DOC. NO.: AX4CMAXII-OL-E0403C

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WWhhaatt’’ss iinn tthhiiss mmaannuuaall

AX4C Max II ................................................................................................................................... 1

What’s in this manual...................................................................................................................................................... 2

You Must Notice..............................................................................................................................................................9

Before You Start ........................................................................................................................................................... 10

Overview....................................................................................................................................................................... 11

Feature Highlight ..........................................................................................................................................................12

Quick Installation Procedure ......................................................................................................................................... 17

Motherboard Map ......................................................................................................................................................... 18

Block Diagram .............................................................................................................................................................. 19

Hardware Installation ...............................................................................................................20

About “Manufacturer Upgrade Optional” and “User Upgrade Optional”… ..................................................................... 21

JP14 Clear CMOS Data ................................................................................................................................................ 22

CPU Installation............................................................................................................................................................23

CPU Jumper-less Design..............................................................................................................................................25

CPU Core Voltage Auto Detectable............................................................................................................................... 27

CPU and System Fan Connector (with H/W Monitoring) ............................................................................................... 29

JP28 Keyboard/Mouse Wake-up Enable/Disable Jumper ............................................................................................. 30

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DIMM Sockets (128-Bit DDR Dual Channel) ................................................................................................................. 31

Front Panel Connector..................................................................................................................................................34

ATX Power Connector................................................................................................................................................... 35

AC Power Auto Recovery ............................................................................................................................................. 36

STBY LED and BOOT LED ........................................................................................................................................... 37

IDE and Floppy Connector............................................................................................................................................ 38

ATA/133 Supported....................................................................................................................................................... 41

Serial ATA Supported (with RAID function) ...................................................................................................................42

Connecting Serial ATA Disk ..........................................................................................................................................43

IrDA Connector ............................................................................................................................................................. 46

S/PDIF (Sony/Philips Digital Interface) Connector ........................................................................................................47

Super 5.1 Channel Audio Effect .................................................................................................................................... 48

AGP 8X Slot.................................................................................................................................................................. 49

AGP Protection Technology and AGP LED.................................................................................................................... 50

Self-Powered PCI Slot .................................................................................................................................................. 51

WOM (Zero Voltage Wake on Modem) Connector ........................................................................................................ 52

WOL (Wake on LAN) .................................................................................................................................................... 55

PC99 Color Coded Back Panel ..................................................................................................................................... 57

Support Gigabit LAN onboard ....................................................................................................................................... 58

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Support Eight USB2.0 Connectors................................................................................................................................59

Onboard IEEE 1394 Controller ..................................................................................................................................... 60

Chassis Intrusion Connector .........................................................................................................................................61

CD Audio Connector ..................................................................................................................................................... 62

AUX-IN Connector ........................................................................................................................................................ 63

Front Audio Connector .................................................................................................................................................. 64

Die-Hard BIOS II (User Upgrade Optional) ...................................................................................................................65

External Controller for DIE-HARD BIOS (User Upgrade Optional) ................................................................................ 66

JP2 Dr. Voice Output Select Jumper.............................................................................................................................68

Dr. LED Connector........................................................................................................................................................ 69

Battery-less and Long Life Design ................................................................................................................................71

CPU Over-current Protection ........................................................................................................................................ 72

AOConfig Utility ............................................................................................................................................................ 73

Resetable Fuse............................................................................................................................................................. 75

3300µF Low ESR Capacitor.......................................................................................................................................... 76

V4 Power Engine .......................................................................................................................................................... 77

Open JukeBox Player ...................................................................................................................................................79

Vivid BIOS technology .................................................................................................................................................. 83

Hyper Threading Technology ........................................................................................................................................84

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RAID Introduction ..................................................................................................................... 86

What’s RAID? ............................................................................................................................................................... 86

What are the RAID levels?............................................................................................................................................ 87

HDD Capacity of RAID Levels ...................................................................................................................................... 90

Serial ATA RAID for Intel ICH5R ................................................................................................................................... 91

Serial ATA RAID for Promise PDC20378....................................................................................................................... 94

Driver and Utility .....................................................................................................................111

Auto-run Menu from Bonus CD Disc ............................................................................................................................111

Installing Intel® Chipset Software Installation Utility ................................................................................................... 112

BroadCOM BCM5705 Gigabit LAN Driver ................................................................................................................... 113

Installing Onboard Sound Driver ................................................................................................................................. 124

The noise is gone!! ---- SilentTek ................................................................................................................................ 131

EzClock ......................................................................................................................................................................134

PHOENIX-AWARD BIOS ........................................................................................................... 138

About Phoenix-Award BIOS Function Description… ................................................................................................... 139

How To Use Phoenix-Award™ BIOS Setup Program .................................................................................................. 140

How To Enter BIOS Setup........................................................................................................................................... 141

WinBIOS Utility ........................................................................................................................................................... 142

BIOS Upgrade under Windows environment............................................................................................................... 144

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Glossary ..................................................................................................................................146

AC97 CODEC ............................................................................................................................................................. 146

ACPI (Advanced Configuration & Power Interface) ..................................................................................................... 146

ACR (Advanced Communication Riser) ......................................................................................................................146

AGP (Accelerated Graphic Port) ................................................................................................................................. 147

AMR (Audio/Modem Riser) .........................................................................................................................................147

ATA (AT Attachment)...................................................................................................................................................147

BIOS (Basic Input/Output System).............................................................................................................................. 148

Bluetooth .................................................................................................................................................................... 148

CNR (Communication and Networking Riser) ............................................................................................................. 149

DDR (Double Data Rate) RAM.................................................................................................................................... 149

ECC (Error Checking and Correction)......................................................................................................................... 150

EEPROM (Electronic Erasable Programmable ROM) ................................................................................................. 150

EPROM (Erasable Programmable ROM) .................................................................................................................... 150

EV6 Bus...................................................................................................................................................................... 150

FCC DoC (Declaration of Conformity)......................................................................................................................... 151

FC-PGA (Flip Chip-Pin Grid Array) ............................................................................................................................. 151

FC-PGA2 (Flip Chip-Pin Grid Array) ........................................................................................................................... 151

Flash ROM.................................................................................................................................................................. 151

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Hyper Threading ......................................................................................................................................................... 151

IEEE 1394 .................................................................................................................................................................. 152

Parity Bit ..................................................................................................................................................................... 152

PCI (Peripheral Component Interface) Bus ................................................................................................................. 153

PDF Format ................................................................................................................................................................ 153

PnP (Plug and Play).................................................................................................................................................... 153

POST (Power-On Self Test) ........................................................................................................................................ 153

PSB (Processor System Bus) Clock ........................................................................................................................... 154

RDRAM (Rambus Dynamic Random Access Memory) ............................................................................................... 154

RIMM (Rambus Inline Memory Module) ...................................................................................................................... 154

SDRAM (Synchronous DRAM).................................................................................................................................... 154

SATA (Serial ATA) ....................................................................................................................................................... 155

SMBus (System Management Bus) ............................................................................................................................ 155

SPD (Serial Presence Detect)..................................................................................................................................... 155

USB 2.0 (Universal Serial Bus)...................................................................................................................................155

VCM (Virtual Channel Memory) .................................................................................................................................. 156

Wireless LAN – 802.11b ............................................................................................................................................. 156

ZIP file ........................................................................................................................................................................ 157

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Troubleshooting ......................................................................................................................158

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Technical Support ...................................................................................................................162

Product Registration ............................................................................................................... 165

How to Contact Us .................................................................................................................. 166

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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, 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 trademarks 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 any form or by any means, or stored in a database or retrieval system without prior written permission from AOpen Corporation. Copyright

©

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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

PDF format

PDF format, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc or you can

in

get free download from

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.

Beeffoorree YYoouu SSttaarrtt

Adobe web site.

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OOvveerrvviieeww

Thank you for choosing AOpen AX4C Max II motherboard. The AX4C Max II is Intel® Socket 478 motherboard (M/B) based on

the ATX form factor featuring the

Max II motherboard supports Intel

performance, it supports 1.5V AGP 8X interface and pipelined spilt-transaction long burst transfer up to 2.1GB/sec. According

to different customer’s requirements, the Intel 875P (Canterwood) chipset memory interface supports

DRAM devices with densities of 128, 256, 512MB and 1GB DDR RAM DIMM modules and the maximum memory size can be

up to 4 GB. The onboard IDE controller supports

up to 133MB/s. With integrated Serial ATA in chipset, it aims to provide you an even faster transfer rate of 150 Mbytes/second

(supports RAID 0, 1, 0+1 with Promise Chip). On the strength of Broadcom Gigabit

PCI LAN Chip, which is an highly-integrated Platform LAN Connect device,

it provides Gigabits for office and home use. Besides, the AX4C

Max has an

performance and magic surround stereo sound to let people enjoy

working with it. More than that, this motherboard supports

function with a fancy speed of up to 480Mbps, and

controller to provides data transfer rate up to 400Mbps. Now,

let’s enjoy all features from AOpen AX4C Max II motherboard.

Intel® 875P (Canterwood) chipset. As high performance chipset built in the M/B, the AX4C

®

Socket 478 Pentium® 4 and 800/533 MHz Front Side Bus (FSB) clock. In the AGP

Ultra DMA 33/66/100 and Promise (PDC20378) 133 mode with transfer rate

AC97 CODEC chipset onboard, providing high

USB 2.0

IEEE 1394

DDR400/DDR333 DDR

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FFeeaattuurree HHiigghhlliigghhtt

CPU

Supports Intel® Socket 478 Pentium® 4 1.6GHz~3.06GHz+ with 800/533MHz Front Side Bus (FSB) designed for Socket 478

technology.

Chipset

With the Intel® 875P (Canterwood) chipset, Intel delivers a discrete graphics solution with all the performance, innovative

features and proven reliability of the Intel

(Canterwood) chipset offers an ideal, leading-edge AGP graphics solution for Intel

the smart integration in the Intel 875P (Canterwood) chipset's I/O Controller Hub features USB controllers supporting eight USB

ports and integrated Serial ATA function that offers faster transfer rate of 150Mbps, plus RAID functions of RAID 0, 1, 0+1 (with

Promise Chip). With support for 5.1 channels of AC’97 audio and the ability to make the most of soft audio/modem technology,

the 875P (Canterwood) chipset delivers an ideal solution for innovative new form factors.

®

875P (Canterwood) chipset. With its highly scalable design, the new 875P

®

Pentium® 4 processor platforms. Additionally,

Expansion Slots

Including six 32-bit/33MHz PCI, in which PCI 6 is named as Self-Powered PCI, which is reserved especially for high

power-consuming PCI cards, and one AGP 8X slot. The

it supports 1.5V AGP interface with 8x Data Transfer capability and pipelined spilt-transaction long burst transfer up to

2.1GB/sec.

PCI local bus throughput can be up to 132MB/s. For AGP performance,

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Memory

Providing ECC four 184-pin DDR RAM DIMM sockets that support up to 4GB of DDR400/333 compliant DDR RAM. You may

install 128, 256, 512MB or 1GB DDR RAM DIMM modules into each socket.

LAN Port

Broadcom Gigabit PCI LAN Chip, which is an highly-integrated Platform LAN Connect device, it provides Gigabits or

10/100Mbps Ethernet for office and home use.

Ultra DMA 33/66/100, Promise 133 IDE

Coming with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels

supports

Besides, this motherboard comes with Promise controller that supportsATA133 mode.

Ultra DMA 33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.

On-board AC’97 Sound

Implementing AC97 sound chip, this on-board audio includes a complete audio recording and playback system.

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1MHz Stepping Frequency Adjustment

Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust FSB frequency

from 100~400 by 1MHz stepping adjustment, and lets your system can get maximum performance.

Watch Dog ABS

Includes AOpen “Watch Dog ABS” function, which could auto-reset default settings in 4.8 seconds when you fail to system

overclocking.

Die-Hard BIOS II (User Upgrade Optional)

The Die-Hard BIOS technology is a very effective hardware protection method that doesn’t involve any software or BIOS coding.

Hence, it is 100% virus free. This motherboard comes with BIOS 1 and BIOS 2 (User Upgrade Optional) that allow you to rescue

BIOS 1 with BIOS 2.

S/PDIF Connectors

S/PDIF (Sony/Philips Digital Interface) is a newest audio transfer format, which provides impressive quality through optical fiber

and allows you to enjoy digital audio instead of analog audio.

IEEE 1394 ports

This motherboard comes with IEEE 1394a controller onboard, which provides data transfer rate up to 400Mbps. to connect with

the devices that need high data transferring performance, such as digital camera, scanner or others IEEE 1394 devices.

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Eight USB Connectors (2.0)

Provide four ports, eight USB connectors for USB interface devices, such as mouse, keyboard, modem, scanner, etc. Compared

to traditional USB 1.0/1.1 with the speed of 12Mbps, USB 2.0 has a fancy speed up to 480Mbps, which is 40 times faster than

the traditional one.

Dr. LED (User Upgrade Optional)

The Dr. LED has 8 LEDs on this AX4C Max II M/B to easily show what kind of problems you may encounter.

Power Management/Plug and Play

Support 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

making the system much user-friendlier.

Plug-and-Play, which helps save users from configuration problems, thus

Hardware Monitoring Management

Support CPU, system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor

module.

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Enhanced ACPI

Fully implement the ACPI standard for Windows® 98/ME/2000/XP series compatibility, and supports Soft-Off, STR (Suspend to

RAM, S3), STD (Suspend to Disk, S4) features.

Super Multi-I/O

Provide two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART can also be

directed from COM1or COM2 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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Broadcom Gigabit PCI LAN Chi

Onboard AC’97 CODEC

S/PDIF Connector

Die-Hard BIOS (BIOS1 & 2)

(User Upgrade Optional)

GAME Connector

Front Audio Connector

AUX-IN Connector

32-bit PCI Expansion Slot x6

(Slot 6: Self-Powered PCI card that

supports high power-consuming PCI cards)

JP24 DieHard BIOS Rescue Jumper

JP2 Dr. Voice Output Select Jumper

CD-IN Connector

WOL Connector

WOM Connector

IEEE 1394 Connectors x 2

n

2

USB (2.0) Connector

Serial ATA Ports x 4

SYSFAN3 Connector

Dr. LED Connector

(User Upgrade Optional)

Front Panel Connector

JP14 CMOS Clear Jumper

STBY LED

(RAID 0, 1, 0+1)

IrDA Connector

Chassis Intrusion Connector

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Motherboard Map

PC99 Colored Back Panel

Resetable Fuse

JP28 Keyboard/Mouse Wakeup Enable/Disable Jumper

4-pin 12V. ATX Power Connector

AGP LED V4 Power Engine

CPUFAN1 Connec Monitoring Function

18 19

SYSFAN2 Connector

AGP Slot (For 1.5V AGP card only)

478-pin CPU socket with Voltage and Frequency Auto-detection support Intel® Pentium® 4 CPU

Intel® 875P (Canterwood) and

ICH5R chipsets

BOOT LED

184-pin DIMMx4 support DDR400/333 (Max. to 4GB)

ATA 33/66/100

IDE Connector x2

ATX Power Connector

Promise ATA133 IDE Connector x1

FDD Connector

tor with H/W

AAXX44CC MMaaxx IIII O

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BBlloocckk DDiiaaggrraamm

Socket 478

Intel

Pentium 4

CPU

AGP 8x Sl ot

Floppy Disk Drive x2

800/533MHz

System Bus

LAN connect Component

DDR400/333 DDR RAM Up to

DIMM Socket x4

4GB

Intel 875P

USB 2.0

Connector x8

PCI Bus

Broadcom Gigabit LAN

1stUSB Port

2ndUSB Port

3rdUSB Port

4thUSB Port

32-bit PCI Slot x6

Promise

PDC20378

ATA

33/66100

Serial ATA

Third Channel

ATA 133

Primary

Channel

Secondary

Channel

Intel ICH5R

Low

Pin Count Super

I/O

Self-

Powered

PCI slot

AC97

CODEC

IEEE 1394

Firmware Hub

4Mbit Flash EEPROM

Parallel Port

Serial Port x2

SATA Drive x2

IDE Drive x6

SATA Drive x2

IEEE 1394 x 2

AAXX44CC MMaaxx IIII O

Onnlliinnee MMaannuuaall

HHaarrddwwaarree IInnssttaallllaattiioonn

This chapter describes jumpers, connectors and hardware devices of this motherboard. 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.

Haarrddwwaarree IInnssttaallllaattiioonn

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A

Abboouutt ““MMaannuuffaaccttuurreerr UUppggrraaddee OOppttiioonnaall”” aanndd ““UUsseerr UUpp

A

bboouutt ““MMaannuuffaaccttuurreerr UUppggrraaddee OOppttiioonnaall”” aanndd ““UUsseerr UUppg

O

ppttiioonnaall””……

OOppttiioonnaall””……

When you read this online manual and start to assemble your computer system, you may find some of functions are called

“Manufacturer Upgrade Optional”, and some are called “User Upgrade Optional”. Though all AOpen motherboards include many

amazing and powerful features, in some situations, these powerful features are not used to every user. Hence, we changed

some key features as “Manufacturer Upgrade Optional” for you to choose. Some optional functions that can be upgraded by

users, we call them “User Upgrade Optional”. As for those optional functions that can’t be upgraded by ourselves, we call them

“Manufacturer Upgrade Optional”. If needed, you can contact our local distributors or resellers for purchasing “User Upgrade

Optional” components, and again you can visit AOpen official web site:

http://english.aopen.com.tw/

http://english.aopen.com.tw/ for more detail information.

Onnlliinnee MMaannuuaall

grraaddee

g

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(default)

1

Clear CMOS

Tip: When should I Clear CMOS?

1. Boot fail because of overclocking…

2. Forget password…

3. Troubleshooting…

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 pins 1 & pin2.

5. Connect ATX power cable back to connector PWR2.

Pin 1

1

Normal Operation

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CCPPUU IInnssttaallllaattiioonn

This motherboard supports Intel® Pentium 4 Socket 478 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.

CPPUU IInnssttaallllaattiioonn

2. Locate Pin 1 in the socket and look for a cut edge on the CPU upper interface. Match Pin 1 and cut edge, then insert the CPU into the socket.

Note: These pictures are for example only, it may not exactly be the same motherboard. Note: These pictures are for example only, it may not exactly be the same motherboard.

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 exactly be the same motherboard. 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.

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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CCPPUU JJuummppeerr--lleessss DDeessiiggnn

CPU VID signal and SMbusCPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency

through the

designs are eliminated. There will be no worry of wrong CPU voltage detection.

BIOS setup, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less

Intel® Socket 478

Pentium 4 CPU

CPU VID signal

Power Regulator

(Automatically generates CPU voltage)

CPPUU JJuummppeerr--lleessss DDeessiiggnn

CPU voltage

Clock Generator

CPU Freq. Ratio

BIOS

Controlled

Circuit

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AAOOppeenn ““WWaattcchh DDoogg AABBSS””

the “Watch Dog ABS” 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 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

AOOppeenn ““WWaattcchh DDoogg AABBSS””

With this motherboard, AOpen provides a very special, useful feature for overclockers.

POST

When you power-on the system, the BIOS will check last system

succeeded, the BIOS will enable “Watch Dog ABS” function immediately, and set the CPU

FSB frequency by user’s setting that stored in the BIOS. If system failed in BIOS POST,

from BIOS

BIOS

Reset Signal

Clock Generator

Countdown about

5 seconds if fails

in POST

CPU

POST status. If it

CPU ID Signal

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CCPPUU CCoorree VVoollttaaggee AAuuttoo DDeetteeccttaabbllee

This motherboard supports CPU VID function. The CPU core voltage will be automatically detected and the range is from 1.1V

to 1.925V. It is not necessary to set CPU Core Voltage.

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.

CPU Ratio 8x, 9x, 10x,…22x, 23x…39x

CPU FSB 133~200MHz

1MHz Stepping CPU Overclocking

Home

100~400MHz

Tip: If your system hangs or fails to boot because

of overclocking, simply use <Home> key to

restore the default setting or you can wait the

AOpen “Watch Dog ABS” reset the system after

five seconds and system will auto-detect

hardware again.

CPPUU CCoorree VVoollttaaggee AAuuttoo DDeetteeccttaabbllee

Tip: The North Bridge of Canterwood

does supports “Turbo mode”, which is

used to lower latency paths from FSB

to system memory that enhances the

system performance, when it is set at

FSB800 and DDR400 mode.

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Core Frequency = CPU FSB Clock * CPU Ratio

PCI Clock = CPU FSB Clock / Clock Ratio

AGP Clock = PCI Clock x 2

Northwood CPU

Pentium 4 2.26G 2260MHz 133MHz 533MHz 17x

Pentium 4 2.4G 2400MHz 133MHz 533MHz 18x

Pentium 4 2.53G 2530MHz 133MHz 533MHz 19x

Pentium 4 2.66G 2660MHz 133MHz 533MHz 20x

Pentium 4 2.80G 2800MHz 133MHz 533MHz 21x

Pentium 4 3.0G 3000MHz 200MHz 800MHz 15x

Pentium 4 3.06G 3060MHz 133MHz 533MHz 23x

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.

CPU Core Frequency

FSB Clock System Bus Ratio

Note: Since the latest processor,

Northwood, would detect the clock

ratio automatically, you may not be

able to adjust the clock ratio in

BIOS manually.

Warning: Intel® 875P

(Canterwood) chipset supports

maximum 800/533MHz

(200/133MHz*4) system bus and

66MHz AGP clock; higher clock

setting may cause serious system

damage.

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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.

SENSOR

+12V

GND

CPUFAN1 Fan Connector

SYSFAN2 Connector

Note: Some CPU fans do not have

sensor pin, so that cannot support

hardware monitoring function.

GND +12V SENSOR

SYSFAN3 Connector

29

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This motherboard provides keyboard / mouse wake-up function. You can use JP28 to enable or disable this function, which

could resume your system from suspend mode with keyboard or mouse installed. The factory default setting is set to

“Disable”(1-2), and you may enable this function by setting the jumper to 2-3.

KB/Mouse Wake-up

Pin 1

Disable

(Default)

Pin 1

JP28

Enable

30

AOpen AX4CMAXII User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

AX4C Max II

Chipset

Expansion Slots

Memory

LAN Port

Ultra DMA 33/66/100, Promise 133 IDE

On-board AC’97 Sound

1MHz Stepping Frequency Adjustment

Watch Dog ABS

Die-Hard BIOS II (User Upgrade Optional)

S/PDIF Connectors

IEEE 1394 ports

Eight USB Connectors (2.0)

Dr. LED (User Upgrade Optional)

Power Management/Plug and Play

Hardware Monitoring Management

Enhanced ACPI

Super Multi-I/O

Motherboard Map