What’s in this manual......................................................................................................................................................2
You Must Notice..............................................................................................................................................................9
Before You Start............................................................................................................................................................ 10
Hard war e Ins tal lat ion .................................................................................................................. 19
About “Optional” and “Upgrade Optional”… ..................................................................................................................20
JP14 Clear CMOS Data ................................................................................................................................................21
CPU Installation ............................................................................................................................................................22
CPU Jumper-less Design ..............................................................................................................................................25
Full-range Adjustable CPU Core Voltage.......................................................................................................................27
CPU and System Fan Connector (with H/W Monit oring) ...............................................................................................29
JP28 Keyboard/Mouse Wake-up Enable/Disable Ju mper.............................................................................................. 3 0
Front Panel Connector..................................................................................................................................................33
ATX Power Connector ...................................................................................................................................................34
AC Power Auto Recovery..............................................................................................................................................35
IDE and Floppy Connector............................................................................................................................................36
WOM (Zero Voltage Wake on Modem) Connector.........................................................................................................41
WOM by External BOX Modem .....................................................................................................................................42
WOM by Internal Modem Card......................................................................................................................................43
WOL (Wake on LAN).....................................................................................................................................................44
CNR (Communication and Network Riser) Expansi on Slot............................................................................................46
PC99 Color Coded Back Panel .....................................................................................................................................47
CD Audio Connector .....................................................................................................................................................50
S/PDIF (Sony/Philips Digital Interface) Connector.........................................................................................................52
rd
USB 2.0 Ports.................................................................................................................................48
Super 5.1 Channel Audio Effect ....................................................................................................................................53
Front Audio Connector ..................................................................................................................................................54
Dr. LED Connector ........................................................................................................................................................55
Battery-less and Long Life Design ................................................................................................................................57
Driver and Utility ......................................................................................................................... 64
Auto-run Menu from Bonus CD Disc .............................................................................................................................65
Installing Intel® Chipset Software Installat ion Utili ty...................................................................................................... 66
Installing LAN Driver (for AX4B-533N) ..........................................................................................................................68
Installing Hardware Monitoring Uti lity............................................................................................................................70
ACPI Suspend to Hard Drive......................................................................................................................................... 73
ACPI Suspend to RAM (STR)........................................................................................................................................77
AWARD BIOS ................................................................................................................................79
About BIOS Function Description… ..............................................................................................................................80
How To Use Award™ BIOS Setup P rogr am ..................................................................................................................81
How To Enter BIOS Set up.............................................................................................................................................83
BIOS Upgrade under Windows environment.................................................................................................................84
VGA Card & Hard Disk ..................................................................................................................................................87
ACPI (Advanced Configuratio n & Power Interfac e) .......................................................................................................88
AMR (Audio/Modem Riser)............................................................................................................................................89
APM (Advanced Power Management) ...........................................................................................................................89
ATA (AT Attachment) .....................................................................................................................................................89
Bus Master IDE (DMA mode)........................................................................................................................................90
CNR (Communication and Networki ng Riser)................................................................................................................91
CODEC (Coding and Decoding)....................................................................................................................................91
DDR (Double Data Rated) SDRAM...............................................................................................................................91
DIMM (Dual In Line Memory Module)............................................................................................................................ 9 1
ECC (Error Checking and Correction) ...........................................................................................................................92
EDO (Extended Data Output) Memory ..........................................................................................................................92
EEPROM (Electronic Erasable Programmab le ROM) ....................................................................................................92
EPROM (Erasable Programmabl e ROM) ......................................................................................................................93
FSB (Front Side Bus) Clock ..........................................................................................................................................94
2
I
C Bus ..........................................................................................................................................................................94
Parity Bit .......................................................................................................................................................................95
PBSRAM (Pipelined Burst S RAM).................................................................................................................................95
PC-1600 or PC-2100 DDR DRAM.................................................................................................................................96
PCI (Peripheral Component Interface) Bus ...................................................................................................................96
PDF Format...................................................................................................................................................................96
PnP (Plug and Play)......................................................................................................................................................97
POST (Power-On Self Test) ..........................................................................................................................................97
SIMM (Single In Li ne M emory Mod ule) .........................................................................................................................98
SPD (Serial Presence Detect ).......................................................................................................................................99
USB (Universal Serial B us) ...........................................................................................................................................99
ZIP file.........................................................................................................................................................................100
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
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
This Online Manual will introduce you 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, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc 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.
Thank you for choosing AOpen AX4B-533 / AX4B-533N motherboard. AX4B-533 / AX4B-533N is Intel® Socket 478 motherboard
(M/B) based on the ATX form factor featuring the Intel
AX4B-533 / AX4B-533N motherboard can support Intel
clock for Northwood and 533MHz Front Side Bus (FSB)
supports 1.5V AGP interfacewith 4x SBA/Data Transfer and 2x/4x Fast Write capability and pipelined spilt-transaction long burst
transfer up to 1056MB/sec. According to different customer’s requirements, the Int el 845E chipset memory interface supports
DDR SDRAM devices with densities of 64, 128, 256, 512Mb, and 1Gb DDR SDRAM DIMM modules and the maximum memory
size can be up to 2GB. The onboard IDE controller supports Ultra DMA
Further flexibility can be achieved by taking advantage of the Communication and
Network Riser (CNR) card that allows audio, modem, and/or LAN
configuration on a single baseboard design. Besides, the AX4B-533 /
AX4B-533N has a S/PDIF connector and an AC97
onboard, providing high performance and magic surround stereo sound
to let people enjoy working with it. Now, let’s enjoy all features from
AOpen AX4B-533 / AX 4B-533N motherboard.
®
845E (Brookdale) chipset. As high performance chipset built in the M/B,
®
Socket 478 Pentium® 4 (Brookdale) and 400MHz Front Side Bus (FSB)
clock for Williamett. In AGP performance, it has one AGP slot which
33/66/100 mode and the transfer rate up to 100MB/s.
Supports Intel® Socket 478 Pentium® 4 (Brookdale) 1.4GHz~2.4GHz+ with 400MHz / 533MHz Front Side Bus (FSB) designed for
Socket 478 technology.
Chipset
With Intel® 845E (Brookdale) chipset is designed for use with the Intel Pentium 4 processor and Northwood processor in the
478-pin package. The Intel 845E chipset Memory Controller Hub (MCH) component provides the processor interface, DRAM
interface, AGP interface, and Hub Interface in an Intel 845E desktop platform. It is optimized for the Intel Pentium 4 processor
and Northwood processor, supporting a single channel of DDR 200/266. B esides, it also supports the second generation I/O
Controller Hub (Intel ICH4) to provide the features required by a desktop platform.
Expansion Slots
Including six 32-bit/33MHz PCI, one CNR and one AGP 4X slots. The PCI local bus throughput can be up to 132MB/s. The
Communication & Nectworking Riser (CNR)
The Accelerated Graphics Port (AGP)
supports data transfer rate up to 1056MB/s.AX4B-533 / AX4B-533N motherboard includes one 1.5V AGP expansion slot with 4x
SBA/Data Transfer and 2x/4x Fast Write capability. For AD and SBA signaling, AX4B-533 / AX4B-533N motherboard can support
4X mode.
slot on AX4B-533 / AX4B-533N supports CNR interface for a Modem/Audio card.
specification provides a new level of video display sophistication and speed which
Provides three 184-pin DDR SDRAM DIMM sockets that support up to 2GB of PC-200/266 compliant DDR SDRAM
(Synchronous Dynamic Random Access Memory). You may install 64, 128, 256, 512Mb and 1Gb DDR SDRAM DIMM modules
into each socket, but please note that DIMM 2 and DIMM 3 cannot be implemented a double-side DDR SDRAM at the same
time.
Ultra DMA 33/66/100 Bus Master IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that support four IDE devices in two channels, and
support Ultra DMA
IDE devices.
33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5. Besides, they also support Enhanced
On-board AC’97 Sound
AX4B-533 / AX4B-533N implements ALC650 AC97 sound chip. This on-board audio supports 5.1 channel and includes a
complete audio recording and playback system.
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 100~248MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
Six USB ports
There are two connectors on the back panel and two USB headers on the board, providing you a total of six USB ports for USB
interface devices, such as mouse, keyboard, modem, scanner, etc.All six USB ports support USB2.0 with a faster speed of data
transmission than the traditional USB.
Dr. LED
Connecting Dr. LED you can easily diagnose the possible problem occurred through 8 LED lights.
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.
Power Management/Plug and Play
Supports the power management function that conforms to the power-saving standards of the U.S. Environmental Protection
Agency (EPA) Energy Star program. It also offers Plug-and-Play
system user-friendly.
, helping save users from configuration problems and makes the
Supports CPU or system fans’ status, temperature, voltage monitoring and alert through the on-board hardware monitor module.
Enhanced ACPI
The fully implemented ACPI standard is Windows® 98/ME/2000 series compatible; it also supports Soft-Off, STR (Suspend to
RAM, S3), STD (Suspend to Disk, S4) features.
Super Multi-I/O
Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. You can also
connect UART from COM1 to an Infrared Module for wireless connection.
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: El ectrostatic 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 t hroughout any
procedure requiring ESD protection.
When you r ead this onli ne manual and start to assemble your computer system, you may find some functions are “Optional”,
and some “Upgrade Optional”. Although all AOpen motherboards include many amazing and powerful features, in some
situations, those powerful features are not commonly used by every user. Therefore, we changed some key features to
“Optional” for you to choose. With optional functions that can be upgraded by users, we define 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 are welcomed to visit AOpen official web
site: www.aopen.com
3. Press down the CPU socket lever and finish
CPU installation.
Note: This picture is for example only; it may not exactly look the same with your motherboard.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well,
ou may damage the CPU.
Note: This socket supports
Micro-FC-PGA2 package CPU, the
latest CPU package developed by
Intel. Other forms of CPU package
are impossible to be fitted in.
Note: P4 CPU tends to produce highe
temperature; for better heat dissipation,
we recommend you to install this
motherboard with a bigger housing.
Besides, by doing so you can preven
components from colliding.
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 for better heat dissipation. Please install the CPU Fan according to
the following procedures.
1. Gently put the CPU Fan down on the
retention module with clips aligning
correctly to the four corners.
2. Press down the four clips with force one by one
on the retention module.
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
designs are eliminated. 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
AOpen provides a special and useful feature on this motherboard for overclockers. When you power-on the system, BIOS will
check last system POST
FSB
frequency according to user’s settings stored in BIOS. If system fails in BIOS POST, then “Watch Dog Timer” will reset the
system to reboot in five seconds. 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.
Watch Dog
status. If it succeeds, the BIOS will enable “Watch Dog Timer” function immediately, and set the CPU
This function is dedicated to overclockers and supports Adjustable CPU Core Voltage from 1.10V to 1.85V. However, this
motherboard also automatically detects CPU VID signal and generates proper CPU core voltage.
SSeettttiinngg CCPPUU FFrreeqquueennccyy
BIOS Setup > Frequency/Voltage Control > CPU Clock Setting
You can set CPU frequency through the BIOS setup, and no jumpers or switches are needed to be set.
CPU Ratio
CPU FS B
Home
8x, 9x, 10x,…22x, 23x, 24x
100~248MHz by 1MHz stepping
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 AOpen “Watch Dog Timer”
to reset the system after five seconds and t he system will
auto-detect hardwares again.
Core Frequency = CPU FSB Clock * CPU Rati o
PCI Clock = CPU FSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
Northwood
CPU
Pentium 4
1.6G
Pentium 4
1.6G
Pentium 4
1.7G
Pentium 4
1.8G
Pentium 4
2.0G
Pentium 4
2.2G
Pentium 4
2.4G
Pentium 4
2.4G
CPU Core
Frequenc y
1600MHz 100MHz400MHz 16x
1600MHz 133MHz533MHz 12x
FSB
Clock
System
Bus
Ratio
1700MHz 133MHz533MHz 13x
1800MHz 100MHz400MHz 18x
2000MHz 100MHz400MHz 20x
2200MHz 100MHz400MHz 22x
2400MHz 100MHz400MHz 24x
2400MHz 133MHz533MHz 18x
Warning: Intel® 845E chipset supports maximum
400MHz (100MHz*4) / 533MHz (133MHz*4) system
bus and 66MHz AGP clock; higher clock setting may
cause serious system damage.
28
Willamette
CPU
Pentium 4
1.5G
Pentium 4
1.6G
Pentium 4
1.7G
Pentium 4
1.8G
Pentium 4
1.9G
Pentium 4
2.0G
CPU Core
Frequenc y
1500MHz 100MHz400MHz 15x
1600MHz 100MHz400MHz 16x
1700MHz 100MHz400MHz 17x
1800MHz 100MHz400MHz 18x
1900MHz 100MHz400MHz 19x
2000MHz 100MHz400MHz 20x
FSB
Clock
System
Bus
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.
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. The f actory default setting is set to “Disable”(1-2), and
you may enable this function by setting the jumper to 2-3.
Pin1
JP28
KB/Mouse Wake-up
1
Disable
(Default)
1
Enable
30
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