What’s in this manual......................................................................................................................................................2
You Must Notice..............................................................................................................................................................8
Before You Start..............................................................................................................................................................9
Hard war e Ins tal lat ion .................................................................................................................. 17
About “User Upgrade Optional” and “Manufacture Upgrade Optional”….......................................................................18
JP14 Clear CMOS Data ................................................................................................................................................19
CPU Installation ............................................................................................................................................................20
CPU Jumper-less Design ..............................................................................................................................................22
CPU and Housing Fan Connector (with H/W Monito ring) ..............................................................................................25
Front Panel Connector..................................................................................................................................................31
ATX Power Connector ...................................................................................................................................................32
AC Power Auto Recovery..............................................................................................................................................33
IDE and Floppy Connector............................................................................................................................................34
CNR (Communication and Network Riser) Expansi on Slot............................................................................................39
Support Intel
PC99 Color Coded Back Panel ..................................................................................................................................... 41
Support 2nd USB Port...................................................................................................................................................43
CD Audio Connector .....................................................................................................................................................45
Front Audio Connector ..................................................................................................................................................47
Battery-less and Long Life Design ................................................................................................................................48
Pure Aluminum Heatsink ............................................................................................................................................... 55
Driver and Utility .........................................................................................................................5 6
Auto-run Menu from Bonus CD Disc .............................................................................................................................57
Eliminate “?” mark from Windows 95/ 98........................................................................................................................58
Installing Hardware Monitoring Uti lity............................................................................................................................62
ACPI Suspend to Hard Drive......................................................................................................................................... 63
ACPI Suspend to RAM (STR)........................................................................................................................................67
About BIOS Function Description… ..............................................................................................................................70
How To Use Award™ BIOS Setup P rogr am ..................................................................................................................71
How To Enter BIOS Set up.............................................................................................................................................73
BIOS Upgrade under Windows environment.................................................................................................................74
VGA Card & Hard Disk ..................................................................................................................................................77
ACPI (Advanced Configuratio n & Power Interfac e) .......................................................................................................78
AMR (Audio/Modem Riser)............................................................................................................................................79
APM (Advanced Power Management) ...........................................................................................................................79
ATA (AT Attachment) .....................................................................................................................................................79
Bus Master IDE (DMA mode)........................................................................................................................................80
CNR (Communication and Networki ng Riser)................................................................................................................80
CODEC (Coding and Decoding)....................................................................................................................................81
DDR (Double Data Rated) SDRAM...............................................................................................................................81
DIMM (Dual In Line Memory Module)............................................................................................................................81
ECC (Error Checking and Correction) ...........................................................................................................................82
EDO (Extended Data Output) Memory ..........................................................................................................................82
EEPROM (Electronic Erasable Programmab le ROM) ....................................................................................................82
FSB (Front Side Bus) Clock ..........................................................................................................................................84
2
I
C Bus ..........................................................................................................................................................................84
Parity Bit .......................................................................................................................................................................85
PBSRAM (Pipelined Burst S RAM).................................................................................................................................85
PC-1600 or PC-2100 DDR DRAM.................................................................................................................................86
PCI (Peripheral Component Interface) Bus ...................................................................................................................86
PDF Format...................................................................................................................................................................86
PnP (Plug and Play)......................................................................................................................................................86
POST (Power-On Self Test) ..........................................................................................................................................87
SIMM (Single In Li ne M emory Mod ule) .........................................................................................................................88
SPD (Serial Presence Detect ).......................................................................................................................................88
USB (Universal Serial B us) ...........................................................................................................................................89
ZIP file...........................................................................................................................................................................90
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 to the user how this product is installed. All useful information will be described in later
chapters. Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved
in PDF format
free download from Adobe web site
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper
size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer
driver.
Thanks for the help of saving our earth.
, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD or you can get
Thank you for choosing AOpen AX4T II-533 / AX4T II-533N motherboard. This motherboard is Intel® Pentium 4
(Willamette/Northwood) motherboard (M/B) based on the ATX form featuring the Intel
chipset built in the M/B, AX4T II-533 / AX4T II-533N supports Intel
Data Rate) technology, AX4T II-533 / AX4T II-533N supports 400/533MHz Front Side Bus (FSB)
3.2GB/s data bandwidth between CPU and chipset. In AGP performance, it has one AGP slot and supports AGP 4X mode and
pipelined spilt-transaction long burst transfer up to 1066MB/sec. The MCH component provides Direct RDRAM interface that
has dual Direct RDRAM channels support PC-600/800/1066 RDRAM operation and maximum up to 2GB. The on-board IDE
controller supports Ultra DMA
and Network Riser (CNR) card option that allows audio and modem configuration on a single baseboard design. Besides, AX4T
II-533 / AX4T II-533N has an AC97
performance and magic surround stereo sound to let people enjoy working
with it. Now, let’s enjoy all features from AOpen AX4T II-533 / AX4T
II-533N.
®
®
Pentium® 41.4GHz~2.4GHz CPU. With Intel® QDR (Quad
33/66/100 mode. Further flexibility can be achieved by taking advantage of the Communication
Supports Intel® Socket 478 Pentium® 4 1.4GHz~2.4GHz with 400/533MHz system bus designed for Socket 478 technology.
Chipset
The Intel® 850E chipset supports dual-channel RDRAM memory, delivering the most performance and headroom to maximize
the performance of Pentium 4 processor-based systems. Its Memory Control Hub (MCH) delivers dual RDRAM memory
channels and a 400/533 MHz system bus, providing the latest graphics support through 1.5V AGP4X technology.The enhanced
I/O Controller Hub (ICH2) delivers twice the I/O bandwidth over traditional bridge architecture and provides dedicated data paths
to fully optimize the additional bandwidth.
Expansion Slots
Including five 32-bit/33MHz PCI, one CNR and one AGP slots. The PCI local bus throughput can be up to 132MB/s. The
Communication & Nectworking Riser (CNR)
Modem/Audio card. The Accelerated Graphics Port (AGP)
speed. The AGP video cards support data transfer rate up to 1066MB/s. As AX4T II-533 / AX4T II-533N motherboard includes
one AGP expansion slot for a bus mastering AGP graphic card, for AD and SBA signaling, AX4T II-533 / AX4T II-533N can
support AGP 4X mode.
slot provided from AX4T II-533 / AX4T II-533N supports CNR interface for a
specification provides a new level of video display sophistication and
Provides four 168-pin DRDRAM DIMM socket that support up to 2GB of PC-600/800/1066 compliant DRDRAM (Direct Rambus
DRAM). You may install 64, 128, 256 or 512MB with ECC (Error Checking and Correction) RDRAM RIMM modules into each
socket.
Ultra DMA 33/66/100 Bus Mater IDE
Comes with an on-board PCI Bus Master IDE cont roller with four connectors that supports eight IDE devices, supports Ultra
DMA 33/66/100/133, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 4, and supports Enhanced IDE devices.
On-board AC97 Sound
AX4T II-533 / AX4T II-533N uses AC97 sound chip. This on-board audio includes a complete audio recording and playback
system.
Four USB Connectors
AX4T II-533 / AX4T II-533N provides two ports, four USB connectors for USB interface devices such as mouse, keyboard,
modem, scanner, etc.
Power Management/Plug and Play
AX4T II-533 / AX4T II-533N supports the power management function that confirms to the power-saving standards of the U.S.
Environmental Protection Agency (EPA) Energy Star program. It also offers Plug-and-Play
configuration problems, thus making system user-friendlier.
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.
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor
module.
Enhanced ACPI
Fully implement the ACPI standard for Windows® 98/ME/2000 series compatibility, and supports Soft-Off, STR (Suspend to RAM,
S3), STD (Suspend to Disk, S4), WOM (Wake On Modem), WOL (Wake On LAN) features.
Super Multi-I/O
AX4T II-533 / AX4T II-533N provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP
capabilities. UART2 can also be directed from COM2 to the Infrared Module for the wireless connections.
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 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 www.aopen.com
This motherboard supports Intel® Pentium® 4 1.4~2.4GHz Socket 478 series CPU. Please follow steps below to finish CPU
installation. Be careful of CPU orientation when you plug it into CPU socket.
1. Pull up the CPU socket level and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for a black dot or cut
edge on the CPU upper interface. Match Pin 1 and cut edge,
then insert the CPU into the socket.
Note: These pictures are for example only; they may not look exactly the same as the motherboard you purchased.
3. Press down the CPU socket level and finish CPU installation.
Note: The CPU you purchased may look different from the one shown here.
CPU cut edge
Note: This socket supports
Micro-FC-PGA2 package CPU, which
is the latest CPU package developed
by Intel. Other forms of CPU package
cannot be fitted in.
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
may damage the CPU.
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.
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
Warning: Intel® 850E chipset supports maximum
400MHz (100MHz*4) /533MHz (133MHz*4) system
bus and 66MHz AGP clock, higher clock setting may
cause serious system damage.
Home
y
Tip: If your system hangs or fails to boot
because of overclocking, simply use <Home>
key to restore the default setting.
PCI Clock = CPU Bus 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
1700MHz 133MHz533MHz 13x
1800MHz 100MHz400MHz 18x
2000MHz 100MHz400MHz 20x
2200MHz 100MHz400MHz 22x
2400MHz 100MHz400MHz 24x
2400MHz 133MHz533MHz 18x
FSB
Clock
System
Bus
Ratio
Warning: Intel® 850E chipset supports maximum 400MHz
(100MHz*4) / 533MHz (133MHz*4) system bus and 66MHz AGP
clock, higher clock setting may cause serious system damage.
24
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
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.
Plug in t he CPU fan c able to the 3 -pin CPU FAN connector. If you have chassis fan, you can also plug it on FAN2 or FAN3
(without H/W monitoring) connector.
FAN2 Connector
CPU Fan Connector
GND
+12V
SENSOR
NC
+12V
GND
FAN3 Connector
Note: Some CPU fans do not
have sensor pin, so that they
cannot support hardware
monitoring function.
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.
This motherboard has four 184-pin RIMM sockets that allow you to install PC600, PC800 and PC1066 RDRAM up to 2GB. AX4T
II-533 / AX4T II-533N will detect the RDRAM speed automatically while system is in POST
RDRAM type manually by BIOS setup program.
, but it still allows you to select the
Note: Based on Intel 850E chipset specification, AX4T
II-533 / AX4T II-533N has dual memory channel. Please
note that when you insert RIMM modules, you have to
insert them into RIMM 1 and 4, and have terminators
inserted into RIMM 2 and 3. Or you can insert RIMM
modules into RIMM 2 and 3, and have terminators
inserted into RIMM 1 and 4.
Pictures below are Direct RDRAM memory module and RIMM terminator (also called C-RIMM). Please do not forget to insert
the RIMM terminator into the proper RIMM socket, otherwise the system cannot be booted.