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MX4GER / MX4PER
DOC. NO.: MX4GER-OL-E0208A
Overview
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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WWhhaatt’’ss iinn tthhiiss mmaannuuaall
MX4GER / MX4PER................................................................................................................................1
What’s in this manual ...................................................................................................................................................... 2
You Must Notice .............................................................................................................................................................. 9
Before You Start............................................................................................................................................................ 10
Overview ....................................................................................................................................................................... 11
Feature Highlight........................................................................................................................................................... 12
Quick Installation Procedure ......................................................................................................................................... 16
Motherboard Map .......................................................................................................................................................... 17
Block Diagram............................................................................................................................................................... 18
Hardware Installation......................................................................................................................19
About “User Upgrade Optional” and “Manufacture Upgrade Optional”… ....................................................................... 20
JP14 Clear CMOS Data ................................................................................................................................................21
CPU Installation ............................................................................................................................................................22
CPU Jumper-less Design ..............................................................................................................................................25
AOpen “Watch Dog Timer” ............................................................................................................................................ 26
CPU and System Fan Connector (with H/W Monitoring) ............................................................................................... 29
DIMM Sockets ............................................................................................................................................................... 30
DDR 266(PC2100) and DDR 333(PC2700)................................................................................................................... 32
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Front Panel Connector .................................................................................................................................................. 33
ATX Power Connector................................................................................................................................................... 34
AC Power Auto Recovery .............................................................................................................................................. 34
STBY LED (Standby LED)............................................................................................................................................. 35
IDE and Floppy Connector ............................................................................................................................................ 36
IrDA Connector .............................................................................................................................................................38
AGP (Accelerated Graphic Port) Expansion Slot ........................................................................................................... 39
AGP Protection Technology and AGP LED.................................................................................................................... 40
WOL (Wake on LAN)..................................................................................................................................................... 41
CNR (Communication and Network Riser) Expansion Slot............................................................................................ 43
Support 10/100 Mbps LAN onboard .............................................................................................................................. 44
JP27 / JP28 USB Keyboard/Mouse Wake-up Jumper ................................................................................................... 45
PC99 Color Coded Back Panel ..................................................................................................................................... 46
Support 2nd USB 2.0 Ports ............................................................................................................................................ 47
Case Open Connector................................................................................................................................................... 48
CD Audio Connector ..................................................................................................................................................... 49
AUX-IN Connector ........................................................................................................................................................ 50
COM2 Connector .......................................................................................................................................................... 51
Front Audio Connector .................................................................................................................................................. 52
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S/PDIF (Sony/Philips Digital Interface) Connector......................................................................................................... 53
Super 5.1 Channel Audio Effect .................................................................................................................................... 54
Battery-less and Long Life Design ................................................................................................................................ 55
Over-current Protection ................................................................................................................................................. 56
Hardware Monitoring ..................................................................................................................................................... 57
Resetable Fuse ............................................................................................................................................................. 58
Low ESR Capacitor ....................................................................................................................................................... 59
Layout (Frequency Isolation Wall) ................................................................................................................................. 61
Enlarged Aluminum Heatsink ........................................................................................................................................ 62
Open JukeBox Player.................................................................................................................................................... 63
Vivid BIOS technology................................................................................................................................................... 67
Driver and Utility .............................................................................................................................68
Auto-run Menu from Bonus CD ..................................................................................................................................... 69
Installing Intel® Chipset Software Installation Utility...................................................................................................... 70
Installing Intel IAA Driver............................................................................................................................................... 71
Installing Intel 845GE VGA Driver (For MX4GER) ......................................................................................................... 72
Installing LAN Driver .....................................................................................................................................................73
Installing Onboard Sound Driver ................................................................................................................................... 74
Installing USB2.0 Driver ................................................................................................................................................ 75
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AOConfig Utility............................................................................................................................................................. 78
Installing Hardware Monitoring Utility ............................................................................................................................ 80
ACPI Suspend to Hard Drive......................................................................................................................................... 81
ACPI Suspend to RAM (STR)........................................................................................................................................ 85
Phoenix-AWARD BIOS......................................................................................................................87
About BIOS Function Description… .............................................................................................................................. 88
How To Use Phoenix-Award™ BIOS Setup Program ....................................................................................................89
How To Enter BIOS Setup ............................................................................................................................................. 91
BIOS Upgrade under Windows environment ................................................................................................................. 92
Overclocking ....................................................................................................................................94
VGA Card & Hard Disk.................................................................................................................................................. 95
Glossar y ...........................................................................................................................................96
AC97............................................................................................................................................................................. 96
ACPI (Advanced Configuration & Power Interface) .......................................................................................................96
AGP (Accelerated Graphic Port) ................................................................................................................................... 96
AMR (Audio/Modem Riser)............................................................................................................................................ 97
AOpen Bonus Pack CD ................................................................................................................................................. 97
APM (Advanced Power Management)........................................................................................................................... 97
ATA (AT Attachment) .....................................................................................................................................................97
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ATA/66 ..........................................................................................................................................................................97
ATA/100 ........................................................................................................................................................................ 98
BIOS (Basic Input/Output System) ................................................................................................................................ 98
Bus Master IDE (DMA mode) ........................................................................................................................................ 98
CNR (Communication and Networking Riser)................................................................................................................ 98
CODEC (Coding and Decoding) .................................................................................................................................... 99
DDR (Double Data Rated) SDRAM ............................................................................................................................... 99
DIMM (Dual In Line Memory Module) ............................................................................................................................ 99
DMA (Direct Memory Access)........................................................................................................................................ 99
ECC (Error Checking and Correction) ......................................................................................................................... 100
EDO (Extended Data Output) Memory ........................................................................................................................ 100
EEPROM (Electronic Erasable Programmable ROM).................................................................................................. 100
EPROM (Erasable Programmable ROM) .................................................................................................................... 100
EV6 Bus ...................................................................................................................................................................... 101
FCC DoC (Declaration of Conformity) .........................................................................................................................101
FC-PGA (Flip Chip-Pin Grid Array).............................................................................................................................. 101
Flash ROM .................................................................................................................................................................. 101
FSB (Front Side Bus) Clock ........................................................................................................................................102
I2C Bus........................................................................................................................................................................ 102
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IEEE 1394................................................................................................................................................................... 102
Parity Bit ..................................................................................................................................................................... 102
PBSRAM (Pipelined Burst SRAM)............................................................................................................................... 103
PC-100 DIMM ............................................................................................................................................................. 103
PC-133 DIMM ............................................................................................................................................................. 103
PC-1600 or PC-2100 DDR DRAM ............................................................................................................................... 103
PCI (Peripheral Component Interface) Bus ................................................................................................................. 103
PDF Format................................................................................................................................................................. 104
PnP (Plug and Play) .................................................................................................................................................... 104
POST (Power-On Self Test) ........................................................................................................................................ 104
RDRAM (Rambus DRAM) ........................................................................................................................................... 104
RIMM (Rambus Inline Memory Module) ...................................................................................................................... 105
SDRAM (Synchronous DRAM) .................................................................................................................................... 105
Shadow E2PROM ........................................................................................................................................................ 105
SIMM (Single In Line Memory Module) ....................................................................................................................... 105
SMBus (System Management Bus) ............................................................................................................................. 106
SPD (Serial Presence Detect)..................................................................................................................................... 106
Ultra DMA ................................................................................................................................................................... 106
USB (Universal Serial Bus) ......................................................................................................................................... 107
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VCM (Virtual Channel Memory)................................................................................................................................... 107
ZIP file......................................................................................................................................................................... 107
Troubleshooting.............................................................................................................................108
Technical Support .........................................................................................................................112
Product Registration ..................................................................................................................... 115
How to Contact Us ........................................................................................................................116
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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 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
©
1996-2002, AOpen Inc. All Rights Reserved.
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BBeeffoorree YYoouu SSttaarrtt
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later chapters.
Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved in PDF format
we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD
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.
.
or you can get free download from
,
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OOvveerrvviieeww
Thank you for choosing AOpen MX4GER / MX4PER motherboard. MX4GER / MX4PER is Intel® Socket 478 motherboard (M/B)
based on the micro-ATX form factor featuring the Intel 845GE / Intel 845 PE chipsets
MX4GER / MX4PER motherboard support Intel
System Bus (PSB) clock. In the AGP performance, it has one AGP slot and supports AGP 4X mode and pipelined spilt-transaction
long burst transfer up to 1056MB/sec. According to different customer’s requirements, this motherboard supports DDR333 (PC2700)
SDRAM and DDR 266 (PC2100) SDRAM up to 2GB maximum. The onboard IDE controller supports Ultra DMA
More than that, on the strength of Realtek RTL8100BL LAN controller on board, which is a highly-integrated Platform LAN Connect
device, it provides 10/100M bps Ethernet for office and home use. Besides, MX4GER / MX4PER has 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 MX4GER / MX4PER motherboard.
®
Socket 478 Pentium® 4 (Willamette / Northwood) and 400/533 MHz Processor
. As high performance chipset built in the M/B,
33/66/100 mode.
CODEC chipset
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FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports Intel® Socket 478 Pentium® 4 (Willamette / Northwood) 1.4GHz~2.4GHz+ with 533MHz Front System Bus (FSB)
designed for Socket 478 technology.
Chipset
The 845GE/PE chipset contains two core components designed for the desktop platform: the 845GE/PE Graphics Memory
Controller Hub (GMCH), and the Intel I/O Controller Hub 4 (ICH4). These components are interconnected via an Intel proprietary
interface called Hub Interface. The Hub Interface is designed into the 845GE/PE chipset to provide an efficient, high bandwidth
communication channel between the GMCH and the ICH4. The GMCH component provides the processor interface, system
memory interface, Hub interface, AGP interface, and an integrated graphics device with analog and digital display ports. The ICH4
integrates a Universal Serial Bus 2.0 controller, Ultra ATA/100 Controller, Low Pin Count interface, Firmware Hub Flash BIOS
interface controller, PCI interface controller, integrated LAN, AC’97 digital controller, and a Hub Interface for communication with
the GMCH.
Expansion Slots
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Including three 32-bit/33MHz PCI, one AGP 1X/2X/4X slots. The PCI local bus throughput can be up to 132MB/s. The Accelerated
Graphics Port (AGP) specification provides a new level of video display sophistication and speed. The AGP video cards support
data transfer rate up to 1056MB/s. MX4GER / MX4PER motherboard includes one AGP expansion slot for a bus mastering AGP
graphic card. For AD and SBA signaling, MX4GER / MX4PER motherboard can support 4X mode. Of three PCI slots provided, all of
them are master PCI slots with arbitration and decoding for all integrated functions and LPC bus.
Memory
Provides two 184-pin DDR SDRAM DIMM sockets that support PC2700(DDR333) and PC2100(DDR266) compliant SDRAM
(Synchronous Dynamic Random Access Memory) up to 2GB.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you to adjust CPU PSB
frequency from 100~248MHz by 1MHz stepping adjustment, and helps your system get maximum performance.
LAN Port
On the strength of Realtek RTL8100BL LAN controller on board, which is a highly-integrated Platform LAN Connect device, it
provides 10/100 Mbps Ethernet for office and home use.
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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.
On-board AC’97 Sound
MX4GER / MX4PER uses RealTek AC97 sound chip. This on-board audio includes a complete audio recording and playback
system.
Four USB2.0 Connectors
Provides four ports, one USB connector, providing total 6 USB2.0 interface devices such as mouse, keyboard, modem, scanner,
etc.
S/PDIF Connectors
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.
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Power Management/Plug and Play
Supports the power management function that confirms to the power-saving standards of the U.S. Environmental Protection
Agency (EPA) Energy Star program. It also offers Plug-and-Play
the system much user-friendlier.
, which helps save users from configuration problems, thus making
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) features.
Super Multi-I/O
Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART can also be
directed from COM1 to the Infrared Module for the wireless connections.
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
1. Installing CPU and Fan
2. Installing System Memory (DIMM)
3. Connecting Front Panel Cable
4. Connecting IDE and Floppy Cable
5. Connecting ATX Power Cable
6. Connecting Back Panel Cable
7. Power-on and Load BIOS Setup Default
8. Setting CPU Frequency
9. Reboot
10. Installing Operating System (such as Windows 98)
11. Installing Driver and Utility
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r
A
A
A
r
r
r
r
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Front Audio Connect
AUX-IN Connector
CD-IN Connect
Realtek 8100BL LAN Chi
AC’97 CODEC
S/PDIF Connecto
JP27 USBLAN Wakeup Jumpe
CNR Connector
32-bit PCI Expansion Slot
IrDA Connector
JP14 CMOS Clea
USB2.0 Connecto
WOL Connecto
4Mb Flash ROM BIOS
Front Panel Connector
ATA66/100 IDE Connector x2
SYSFAN3
Chassis Intrusion
Motherboard Map
17
PC99 Colored Back
JP28 Keyboard/Mouse Wakeup
Enable/Disable Jumper
Resettable Fuse
COM2 Connector
SYSFAN2 Connector
4-pin 12V. ATX Power Connector
Low ESR Capacitors
GP 4x Expansion Slot
478-pin CPU socket
(Willamette/ Northwood) with
Voltage and Frequency
uto-detection that supports
®
Intel
Pentium®4 1.4~2.4GHz+
Intel 845GE/PE Chipset
CPUFAN1 connector
184-pin DIMMx2 supports
PC2100/2700 DDR SDRAM
maximum up to 2GB
TX Power Connector
FDD Connector
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BBlloocckk DDiiaaggrraamm
Socket 478
Intel Pentium 4
CPU(Willamett e
/Northwood)
AGP 4X Slot
PC-2100/2700 SDRAM
DIMM S ocke t x2
533MHz System
Bus
LAN connect Component
Floppy Disk Drive x2
Up to 2GB
Intel 845GE
(MX4GER)
Intel 845PE
(MX4PER)
USB Port x6
PCI Bus
RTL8100BL
USB Port
USB Port
USB Port
ATA 66/100
Realtek
32-bit PCI Slot x3
Primary
Channel
Secondary
ICH4
Winbond
W83627
Channel
HF
RealTek
AC97
CODEC
4Mbit Flash EEPROM
Parallel Port
Serial Port x2
IDE Drive x4
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HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: Electrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and
other components. Always observe the following precautions before you install a system component.
1. Do not remove a component from its protective packaging until you are ready to install it.
2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a
component. If a wrist strap is not available, maintain contact with the system unit throughout any
procedure requiring ESD protection.
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AAbboouutt ““UUsseerr UUppggrraaddee OOppttiioonnaall”” aanndd ““MMaannuuffaaccttuurree UUppggrraaddee OOppttiioonnaall””……
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
for detail information.
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JJPP1144 CClleeaarr CCMMOOSS DDaattaa
You can clear CMOS to restore system default setting. To clear CMOS, follow the procedure below.
1. Turn off the system and unplug the AC power.
2. Remove ATX power cable from connector PWR2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pin 1 & pin 2.
5. Connect ATX power cable back to connector PWR2.
Normal
default
Pin 1
Clear
Tip: When should I Clear CMOS?
1. Boot fail because of overclocking…
2. Forget password…
3. Troubleshooting…
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CCPPUU IInnssttaallllaattiioonn
This motherboard supports Intel® Pentium 4 Socket 478 series CPU (Willamette / Northwood). Be careful of CPU orientation when
you plug it into CPU socket.
1. Pull up the CPU socket lever and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for 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,
ou may 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 FFaann IInnssttaallllaattiioonn
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.
2. Pressing down the four clips with force one by
one on the retention module.
Clip
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CCPPUU JJuummppeerr--lleessss DDeessiiggnn
CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency
through the BIOS setup
designs are eliminated. There will be no worry of wrong CPU voltage detection.
.
CPU VID signal
, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less
Intel® Socket 478
Pentium 4
Power Regulator
(Automatically generates CPU voltage)
CPU Freq. Ratio
CPU voltage
Clock
Generator
BIOS
Controlled
Circuit
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AAOOppeenn ““WWaattcchh DDoogg TTiimmeerr””
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
Timer
AOpen provides a special and useful feature on this motherboard for overclockers. When you
power-on the system, the BIOS will check last system POST
enable “Watch Dog Timer” function immediately, and set the CPU PSB frequency according to user’s
settings stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will reset the
Enable/Disable Signal
from BIOS
Countdown about
5 seconds if fails
in POST
Reset Signal
Clock Generator
status. If it succeeded, the BIOS will
BIOS
CPU ID Signal
CPU
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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. The default setting is "table select mode". You can adjust the PSB from "CPU Host/SDRAM/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
CPU FSB (By BIOS table)
8x, 10x… 21x, 22x, 23x, 24x
100 and 133 MHz
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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
Frequency
1600MHz 100MHz 400MHz 16x
1600MHz 133MHz 533MHz 12x
1700MHz 133MHz 533MHz 13x
1800MHz 100MHz 400MHz 18x
2000MHz 100MHz 400MHz 20x
2200MHz 100MHz 400MHz 22x
2400MHz 100MHz 400MHz 24x
2400MHz 133MHz 533MHz 18x
FSB
Clock
System
Bus
Ratio
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
Celeron
CPU
1.7G 1700MHz 100MHz 400MHz 17x
1.8G 1800MHz 100MHz 400MHz 18x
CPU Core
Frequency
1500MHz 100MHz 400MHz 15x
1600MHz 100MHz 400MHz 16x
1700MHz 100MHz 400MHz 17x
1800MHz 100MHz 400MHz 18x
1900MHz 100MHz 400MHz 19x
2000MHz 100MHz 400MHz 20x
CPU Core
Frequency
FSB
Clock
FSB
Clock
System
Bus
System
Bus
Ratio
Ratio
Warning: Intel 845GE/PE chipset supports maximum
400MHz (100MHz*4) / 533MHz (133MHz*4) system
bus and 66MHz AGP clock; higher clock setting may
cause serious system damage.
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.
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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.
SYSFAN3 Connector
GND
+12V
SENSOR
SYSFAN2 Connector
CPUFAN1 Connector
Note: Some CPU fans do not have
sensor pin, so that they cannot
support hardware monitoring function.
GND
+12V
SENSOR
GND
+12V
SENSOR
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DDIIMMMM SSoocckkeettss
This motherboard has two 184-pin DDR DIMM sockets that allow you to install PC2100 (DDR266) memory or PC2700 (DDR333)
memory up to 2GB.
DIMM1
DIMM2
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HHooww ttoo IInnssttaallll MMeemmoorryy MMoodduulleess
Please follow the procedure as shown below to finish memory installation.
1. Make sure the DIMM module’s pin face down and match the socket’s size as depicted below.
2. Insert the module straight down to the DIMM slot with both hands and press down firmly until the DIMM module is securely in
place.
3. Repeat step 2 to finish additional DIMM modules installation.
Pin 1
Ta b
Key
52 pins 40 pins
31
Pin 1
Note: The tabs of the DIMM slot
will close-up to hold the DIMM in
place when the DIMM touches
the slot’s bottom.
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DDDDRR 226666((PPCC22110000)) aanndd DDDDRR 333333((PPCC22770000))
DDR SDRAM utilizes the existing SDRAM infrastructure and technology while doubling the nominal bandwidth available to systems.
To put it in a simple way, DDR SDRAM is like data going along a two lane highway, while at the same time data in traditional
SDRAM go along a one way street. Therefore, it is a more advanced technology that provides a great overall improvement in
system performance. DDR266 (PC2100) runs two times faster than the traditional PC133 SDRAM with the speed of Front Side Bus
(FSB) up to 266MHz. (2x133=266). And DDR333 (PC2700) is running at 333MHz FSB. Both PC2100 and PC2700 are a new
naming standard for speed of DDR 266 and DDR 333, representing their theoretical speeds of the RAM. The theoretical transfer
rate of DDR 266 (PC2100) is 2.1GB/s and 2.7GB/s is for DDR 333 (PC2700).
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o
e
A
A
MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
FFrroonntt PPaanneell CCoonnnneeccttoorr
Pin1
Attach the power LED, Keylock, speaker, power and reset switch connectors t
the corresponding pins. If you enable “Suspend Mode” item in BIOS Setup, th
ACPI & Power LED will keep flashing while the system is in suspend mode.
Locate the power switch cable from your ATX housing. It is 2-pin female
connector from the housing front panel. Plug this connector to the soft-power
switch connector marked SPWR.
Suspend Type ACPI LED
Power on Suspend (S2) or Suspend to RAM (S3) Flashing for every second
Suspend to Disk (S4) The LED will be turned off
IDE LED
Speaker
1
SPWR
CPI & PWR
LED
CPI LED (BLUE)
Reset
IDE LED
IDE LED
SPEAKER
NC
NC
+5V
+5V
+5V
GND
NC
1
SPWR
GND
ACPI LED GND
ACPILED
NC
ACPI_B
GND
RESET
GND
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AATTXX PPoowweerr CCoonnnneeccttoorr
This motherboard comes with a 20-pin and 4-pin ATX power connector. Make sure you plug in the right direction. We strongly
recommend you to connect the 4-pin 12V ATX connector before connecting the 20-pin ATX power connector and use standard
power supply specially designed for Pentium 4 system.
AACC PPoowweerr AAuuttoo RReeccoovveerryy
A traditional ATX system should remain at power off stage when AC power resumes from power failure. This design is inconvenient
for a network server or workstation, without an UPS, that needs to keep power-on. This motherboard implements an AC Power Auto
Recovery function to solve this problem.
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SSTTBBYY LLEEDD ((SSttaannddbbyy LLEEDD))
The STBY LED is AOpen’s considerate design that we aim at providing you a friendly system information. The STBY LED will light
up when power is provided to the motherboard. This is a convenient indication for you to check the system power status in many
circumstances such as power on/off, stand-by mode and RAM power status during Suspend to RAM mode.
STBY LED
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IIDDEE aanndd FFllooppppyy CCoonnnneeccttoorr
Connect 34-pin floppy cable and 40-pin IDE cable to floppy connector FDD and IDE connector. Be careful of the pin1 orientation.
Wrong orientation may cause system damage.
Secondary
Slave (4th)
Secondary
Master (3rd)
Pin 1
FDD Connector
Pin 1
Secondary
Slave (2nd)
ATA 66/100 IDE
Connector
IDE 2 (Secondary)
IDE 1 (Primary)
Primary
Master (1st)
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IDE1 is also known as the primary channel and IDE2 as the secondary channel. Each channel supports two IDE devices that make
a total of four devices. In order to work together, the two devices on each channel must be set differently to Master and Slave
mode. Either one can be the hard disk or the CDROM. The setting as master or slave mode depends on the jumper on your IDE
device, so please refer to your hard disk and CDROM manual accordingly.
Tip:
1. For better signal quality, it is recommended to set the far end side device
to master mode and follow the suggested sequence to install your new
device. Please refer to above diagram
2. To achieve the best performance of Ultra DMA 66/100 hard disks, a
-
Warning: The specification of the IDE cable is a maximum of 46cm (18 inches);
make sure your cable does not exceed this length.
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IIrrDDAA CCoonnnneeccttoorr
The IrDA connector can be configured to support wireless infrared module, with this module and application software such as
Laplink or Windows 95 Direct Cable Connection, the user can transfer files to or from laptops, notebooks, PDA devices and printers.
This connector supports HPSIR (115.2Kbps, 2 meters) and ASK-IR (56Kbps).
Install the infrared module onto the IrDA connector and enable the infrared function from BIOS Setup, UART Mode, make sure to
have the correct orientation when you plug in the IrDA connector.
NC
+5V
IR_TX
IIrrDDAA CCoonnnneeccttoorr
Pin 1
KEY
GND
IR_RX
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
AAGGPP ((AAcccceelleerraatteedd GGrraapphhiicc PPoorrtt)) EExxppaannssiioonn SSlloott
MX4GER / MX4PER provides an AGP 4x slot. The AGP 4x is a bus interface targeted for high-performance 3D graphic. AGP
supports only memory read/write operation and single-master single-slave one-to-one only. AGP uses both rising and falling edge
of the 66MHz clock, for 2X AGP, the data transfer rate is 66MHz x 4bytes x 2 = 528MB/s. AGP is now moving to AGP 4x mode,
66MHz x 4bytes x 4 = 1056MB/s.
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A
MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
AAGGPP PPrrootteeccttiioonn TTeecchhnnoollooggyy aanndd AAGGPP LLEEDD
With the outstanding R&D ability of AOpen and its specially developed circuit, AX4B-533 Plus implements a blend new technology
to protect your motherboard from being damaged by over-voltaging of AGP card. When AGP Protection Technology is implemented,
this motherboard will automatically detect the voltage of AGP card and prevent your chipsets from being burnt out. Please note that
if you install a AGP card with 3.3V, which is not supported by Intel 845GE/PE, the AGP LED on the motherboard will light up to
warn you the possible damage of the exceeding voltage. You may contact your AGP card vendor for further support.
GP LED
Warning: It is strongly recommended not
to install a 3.3V AGP card, which is not
supported by Intel 845GE/PE. When you do
so, the LED3 on the motherboard will light
up to warn you the possible damage.
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WWOOLL ((WWaakkee oonn LLAANN))
To use Wake On LAN function, you must have a network card with chipset that supports this feature, and connect a cable from LAN
card to motherboard WOL connector. The system identification information (probably IP address) is stored on network card and
because there is a lot of traffic on the Ethernet, you need to install network management software, such as ADM, for the checking
of how to wake up the system. Note that, at least 600mA ATX standby current is required to support the LAN card for this function.
WOL connector
LID
GND
+5VSB
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WOL Connector
(Motherboard Side)
Note: This picture is for example only; it may not exactly look the same with the motherboard you purchased.
WOL Connector
(Ethernet Card Side)
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
CCNNRR ((CCoommmmuunniiccaattiioonn aanndd NNeettwwoorrkk RRiisseerr)) EExxppaannssiioonn SSlloott
CNR is a riser card specification to replace the AMR (Audio/Modem Riser) that supports V.90 analog modem, multi-channel audio,
and phone-line based networking. Owing to CPU computing power getting stronger, the digital processing job can be implemented
in main chipset and share CPU power. The analogy conversion (CODEC) circuit requires a different and separate circuit design,
which is put on CNR card. This motherboard implements sound CODEC on board, but reserve CNR slot for the option of modem
function. Note that you can still use PCI modem card.
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SSuuppppoorrtt 1100//110000 MMbbppss LLAANN oonnbbooaarrdd
On the strength of Realtek RTL8100BL LAN controller on board, which is a highly-integrated Platform LAN Connect device, it
provides 10/100M bps Ethernet for office and home use, the Ethernet RJ45 connector is located on top of USB connectors. The
green LED indicates the link mode, it lights when linking to network and blinking when transferring data. The orange LED indicates
the transfer mode, and it lights when data is transferring in 100Mbps mode. To enable or disable this function, you may simply
adjust it through BIOS.
Green/ACT
Orange/Speed
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
JJPP2277 // JJPP2288 UUSSBB KKeeyybbooaarrdd//MMoouussee WWaakkee--uupp JJuummppeerr
This motherboard provides USB and PS2 keyboard / mouse wake-up function. You can use JP27 / JP28 to enable or disable the
resuming of your system from suspend mode with any USB keyboard or mouse connected. JP28 controls 1
JP27 controls 2
jumper to 2-3.
JP27 KB/Mouse
Wake-up
1
Disable
(Default)
nd
USB channel. The factory default setting is set to “Disable”(1-2), and you may enable this function by setting the
2nd USB Channel
Pin 1
1
Enable
st
1
st
USB channel, and
USB Channel
Pin 1
JP28 KB/Mouse
Wake-up
11
Disable
(Default)
Enable
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PPCC9999 CCoolloorr CCooddeedd BBaacckk PPaanneell
The onboard I/O devices are PS/2 Keyboard, PS/2 Mouse, RJ-45 LAN Connector, COM1 and VGA, Printer, USB , AC97 sound and
game ports. The view angle of drawing shown here is from the back panel of the housing.
PS/2 Keyboard: For standard keyboard, which is using a PS/2 plug.
PS/2 Mouse: For PC-Mouse, which is using a PS/2 plug.
USB Port: Available for connecting USB devices.
Parallel Port: To connect with SPP/ECP/EPP printer.
COM1/COM2 Port: To connect with pointing devices, modem or others serial devices.
RJ-45 LAN connector To connect Ethernet for home or office use.
VGA Connector: To connect with PC monitor.
Speaker Out: To External Speaker, Earphone or Amplifier.
Line-In: Comes from the signal sources, such as CD/Tape player.
MIC-In: From Microphone.
PS/2 Mouse
Connector
PS/2 Keyboard
Connector
USB
Ports
COM 1 Port
SPP/EPP/ECP
Parallel Port
RJ-45 LAN
Connector
VGA Port
USB Ports
Line-In
Speaker Out
MIC-In
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d
nnd
SSuuppppoorrtt 2
This motherboard provides four USB ports to connect USB devices such as mouse, keyboard, modem, printer, etc. There is one
more front USB connector on the board for you to connect another two USB devices. You can use proper cables to connect USB
devices from PC99 back panel or connect the front USB connector to the front panel of chassis.
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. Except for the speed increase, USB 2.0 supports old USB 1.0/1.1 software and peripherals, offering
impressive and even better compatibility to customers. On this motherboard, all six ports support USB 2.0 function.
USBPWR0
USB_FP_P0-
USB_FP_P0+
GND
KEY
2
1 2
UUSSBB 22..00 PPoorrttss
USBPWR0
USB_FP_P1-
USB_FP_P1+
GND
USB_FP_OC0
Pin 1
USB2.0 Connector
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
CCaassee OOppeenn CCoonnnneeccttoorr
The “CASE OPEN” header provides chassis intrusion-monitoring function. To make this function works, you have to enable it in the
system BIOS, connect this header to a sensor somewhere on the chassis. So, whenever the sensor is triggered by lights or by the
opening of the chassis, the system will beep to inform you. Please be informed that this useful function only applies to advanced
chassis, you may purchase an extra sensor, attach it on your chassis, and make a good use of this function.
Sensor
GND
Pin 1
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CCDD AAuuddiioo CCoonnnneeccttoorr
This connector is used to connect CD Audio cable from CDROM or DVD drive to onboard sound.
CD-IN
R
GND
GND
L
Note: Though some of the latest versions of Windows
support “Digital Audio” through IDE bus. However, in
order to use Open Jukebox player, which is driven
under BIOS, it is a MUST to connect audio cable to
CD-IN connector on the motherboard.
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A
MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
AAUUXX--IINN CCoonnnneeccttoorr
This GREEN connector is used to connect MPEG Audio cable from MPEG card to onboard sound.
R
GND
GND
L
UUXX--IINN CCoonnnneeccttoorr
A
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CCOOMM22 CCoonnnneeccttoorr
This motherboard provides two serial ports. One of them is on back panel connector, and the other is on the upper middle of board.
With proper cable, you can connect it to the back panel of chassis.
RI#
RTS#
DSR#
CTS#
Pin 1
GND
SOUT
DOD#
1
2
SIN
DTR#
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y
d
A
A
MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
FFrroonntt AAuuddiioo CCoonnnneeccttoorr
If the housing has been designed with an audio port on the front panel, you’ll be able to connect onboard audio to front panel
through this connector. By the way, please remove the jumper cap from the Front Audio Connector before you connect the cable.
Do not remove this yellow jumper cap if your housing doesn’t have an audio port on the front panel.
Pin 1
AUD_RET_R
AUD_VCC
AUD_GND
AUD_MIC
AUD_MIC_BIAS
AUD_FPOUT_R
2
1
Note: Please remove the jumper cap from the front audio connector before
ou connect the cable. Do not remove this yellow jumper cap if your housing
oesn’t have an audio port on the front panel.
10
9
KEY
UD_RET_L
UD_FPOUT_L
HP_ON
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
SS//PPDDIIFF ((SSoonnyy//PPhhiilliippss DDiiggiittaall IInntteerrffaaccee)) CCoonnnneeccttoorr
S/PDIF (Sony/Philips Digital Interface) is a latest audio transfer file format that provides impressive quality through optical fiber and
allows you to enjoy digital audio instead of analog. Normally there are two S/PDIF outputs as shown, one for RCA connector, the
most common one used for consumer audio products, and the other for optical connector with a even better audio quality. Through
a specific audio cable, you can connect the S/PDIF connector to a S/PDIF audio module bearing S/PDIF digital output. However,
you must have a S/PDIF supported speaker with S/PDIF digital input to make the most of this function.
1
5
+5V
NC
SPDIFOUT
GND
SPDIFIN
S/PDIF
S/PDIF Module
(User Upgrade Optional)
Pin 1
S/PDIF
Connector
S/PDIF OUT (RCA)
S/PDIF IN (RCA
S/PDIF OUT (Optical)
S/PDIF IN (Optical)
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
SSuuppeerr 55..11 CChhaannnneell AAuuddiioo EEffffeecctt
This motherboard comes with an ALC650E Codec which supports high quality of 5.1 Channel audio effect, bringing you a brand
new audio experience. On the strength of the innovative design of ALC650E, you're able to use standard line-jacks for surround
audio output without connecting any external module. To apply this function, you have to install the audio driver in the Bonus Pack
CD as well as an audio application supporting 5.1 Channel. Picture below represents the standard location of all speakers in 5.1
Channel sound track. Please connect the plug of your front speakers to the green “Speaker out” port, rear speakers’ plug to the
blue “Line in” port and both of the center and subwoofer speakers to the red “MIC in” port.
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A
MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
BBaatttteerryy--lleessss aanndd LLoonngg LLiiffee DDeessiiggnn
This Motherboard implements a Flash ROM 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
uto switching 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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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
OOvveerr--ccuurrrreenntt PPrrootteeccttiioonn
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.
Note: Although we have implemented protection circuit and tried to prevent any human
operating mistake, certain risks might still happen when CPU, memory, HDD or add-on cards
installed on this motherboard is damaged due to component failure, human operating error or
other unknown natural reasons. AOpen cannot guarantee that the protection circuit will
always work perfectly.
ATX
Switching
Power
Supply
3.3V (Protected by power supply)
5V (Protected by power supply)
12V (Protected by power supply)
Onboard
Power
Regulator
Over-Current
Protection
Circuit
CPU Core Voltage
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Fan
CPU
Fan Speed
AOpen H/W
Monitoring
Utility
CPU Temperature
CPU Voltage
System Voltage
Detection
Circuit
HHaarrddwwaarree MMoonniittoorriinngg
This motherboard implements a hardware monitoring system. As you turn on your system, this smart design will monitor your
system’s working voltage, fan status and CPU temperature. If any of those systems’ status goes wrong, there will be an alarm
through the chassis external speaker or buzzer of motherboard (if having this function and enabled) to warn the user.
Power
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
RReesseettaabbllee FFuussee
Traditional motherboard uses fuses to prevent Keyboard and USB port from over-current or shortage. These fuses are soldered
onboard that when it is broken (function to protect motherboard), user cannot replace them and result in malfunction of
motherboard.
With expensive Resetable Fuse, the motherboard can be resumed back to normal function even after the fuse had done its
protection job.
Resetable
Fuse
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
LLooww EESSRR CCaappaacciittoorr
The quality of low ESR capacitor (Low Equivalent Series Resistance) during high frequency operation is very important for the
stability of CPU power. The idea of where to put these capacitors is another know-how that requires experience and detail
calculation.
Not only that, MX4GER / MX4PER implements 2200μF capacitors, which is much larger than normal capacitor (1000 & 1500μf)
and it provides better stability for CPU power.
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The power circuit of the CPU core voltage must be checked to ensure system stability for high speed CPUs (such as the new
Pentium III, or when overclocking). A typical CPU core voltage is 2.0V, so a good design should control voltage between 1.860V
and 2.140V. That is, the transient must be below 280mV. Below is a timing diagram captured by a Digital Storage Scope, it shows
the voltage transient is only 143mv even when maximum 60A current is applied.
Note: This diagram for example only, it may not be exactly the same as the motherboard you purchased.
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
LLaayyoouutt ((FFrreeqquueennccyy IIssoollaattiioonn WWaallll))
Note: This diagram for example only, it may not look exactly the same as the motherboard you
purchased.
For high frequency operation, especially when
overclocking, layout is the most important factor to
make sure both chipset and CPU are working in
stable condition. The layout of this motherboard
implements AOpen’s unique design called “Frequency
Isolation Wall”. Separating each critical portion of
motherboard into regions, where each region
operates in a same or similar frequency range, we
can avoid cross talk and frequency interference
between each region’s operations and condition. The
trace length and route must be calculated carefully.
For example, the clock trace must be equal to length
(not necessarily as short as possible) so that clock
skew will be controlled within few a pico second
12
(1/10
Sec)
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
EEnnllaarrggeedd AAlluummiinnuumm HHeeaattssiinnkk
Cool down CPU and Chipset are important for system reliability. Enlarged aluminum heat sink provides better heat consumption
especially when you are trying to over-clock the CPU.
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OOppeenn JJuukkeeBBooxx PPllaayyeerr
Here we are pleased to provide you a brand-new powerful interface—Open JukeBox. Without any
cost you can have your PC turn into a fashionable CD player! This latest Open JukeBox
motherboard aims at helping you directly operate your CD player on the PC without any hassle of entering Windows operation
system.
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A
y
play
y
MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
How Your Open JukeBox Works
The operation of Open JukeBox Player is the same as other CD players. By pressing specific keys on the keyboard you will find
playing Open JukeBox Player couldn’t be easier than the traditional CD Players. Below is the function description of respective
buttons.
Power-Off Button
Operation S
Boot to
Power: Pressing O
Boot: Pressing B
Play: Pressing A
Stop: Pressing S
Pause: Pressing P
Eject: Pressing E
Repeat: Like other CD Players, pressing R
Volume +/-: Pressing + or – to adjust the volume of playing music.
stem
to directly power off your computer with no hassle of entering Windows Operation System.
to intelligently boot to Windows Operation System for you.
to start playing CD music.
to stop the music playing.
to pause the music playing temporarily.
to eject CD tray for you to change CD.
to shift the repeat mode.
Rewind/Forward / : Pressing arrow keys, to rewind or forward the music.
64
Note: Though some of the latest
versions of Windows support “Digital
udio” through IDE bus. However, in
order to use Open Jukebox player,
which is driven under BIOS, it is a
MUST to connect audio cable to CD-IN
connector on the motherboard.
Dis
Function Ke
Screen
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
Your Open JukeBox Settings in BIOS
There are three Open JukeBox settings in BIOS as follows.
Auto
: The default setting is “Auto” with which the Open JukeBox will automatically check the CD player every time you power on.
The Open JukeBox will automatically be launched when it detects a music CD in your CD player.
Press Insert Key
of pressing “Ins” key on your keyboard to start Open JukeBox Player; otherwise the system will launch the Windows Operation
System.
CD Player
pressing B on your keyboard the Windows Operation System will be launched.
: Choosing this setting will allow a reminder message popped up on the screen during BIOS POST. It reminds you
: Choosing this setting allows the system to launch Open JukeBox Player every time you power on. However, by
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Your Open JukeBox EzSkin
Except these powerful functions above, Open JukeBox Player is also equipped with another fancy feature for you to
change its “skin”. You can download as many skins as you want from AOpen Website, and changing them whenever you
want by using this useful utility – EzSkin – which may also be downloaded from our website.
Even more, you may design your own skins with innovative idea and sharing them to users around the world by uploading to our
website. For further technical information, we welcome you to visit our website at http://english.aopen.com.tw/tech/download/skin
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
VViivviidd BBIIOOSS tteecchhnnoollooggyy
Unlike earlier graphic POST screen which could occupy the whole screen and mask text information during POST, AOpen
VividBIOS deals with graphics and texts separately, and makes them running simultaneously during POST. With this innovative
design, VividBios now brings you a beautiful and sleek 256 colors screen without missing any important information shown on
POST screen.
In addition, the limited space of BIOS ROM is another big issue. When all of the traditional BIOS can only show space-consuming
and uncompressed Bitmap, AOpen has considerately tuned the BIOS to next generation, to recognize the smaller-sized GIF format
and even dynamic-showing GIF animation.
Vivid BIOS shares the same fundamental technology with Open JukeBox CD Player, you may use the same EzSkin utility to
change your Vivid BIOS screen or to download your favourite Open JukeBox skin. If you see this little logo
your model name on the BIOS download page,
motherboard supports this innovative feature!
Have you been fed up with the conservative and immutable POST screen? Let’s rule out the
tradition idea that POST screen are stiff and frigid, and let AOpen show you the newly developed
VividBIOS to experience the lively vivid colorful POST screen!
shown beside
http://english.aopen.com.tw/tech/download/skin, it is assured that your
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DDrriivveerr aanndd UUttiilliittyy
There are motherboard drivers and utilities in AOpen Bonus CD. You don’t need to install all of them to boot your system. But after
you finish the hardware installation, you have to install your operation system first (such as Windows 98) before you install any
drivers or utilities. Please refer to your operation system’s installation guide.
Note: Please follow recommended procedure
to install Windows 2000
and Windows XP.
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AAuuttoo--rruunn MMeennuu ffrroomm BBoonnuuss CCDD
You can use the auto-run menu of Bonus CD. Choose the utility and driver and select model name.
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IInnssttaalllliinngg IInntteell®® CChhiippsseett SSooffttwwaarree IInnssttaallllaattiioonn UUttiilliittyy
Windows 95/98 cannot recognize this chipset, because they were released earlier than Intel 845 chipset. You can install Intel INF
Update Utility from Bonus Pack CD auto-run menu to eliminate the “?” marks.
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IInnssttaalllliinngg IInntteell IIAAAA DDrriivveerr
You can install Intel IAA Driver to increase the performance of software applications and reduce PC boot times. You can find it in
AOpen Bonus Pack CD.
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IInnssttaalllliinngg IInntteell 884455GGEE VVGGAA DDrriivveerr ((FFoorr MMXX44GGEERR))
YYoouu ccaann ffiinndd IInntteell VVGGAA ddrriivveerr ffrroomm tthhee BBoonnuuss PPaacckk CCDD aauuttoo--rruunn mmeennuu.
.
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IInnssttaalllliinngg LLAANN DDrriivveerr
You can download LAN Driver from the Bonus Pack CD.
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IInnssttaalllliinngg OOnnbbooaarrdd SSoouunndd DDrriivveerr
This motherboard comes with AC97 CODEC. This audio driver supports Windows 98SE and upper Windows OS; you can find the
audio driver from the Bonus Pack CD auto-run menu.
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IInnssttaalllliinngg UUSSBB22..00 DDrriivveerr
* Windows 2000 Installation Guide
*************************************************
Installing Driver in Existing Windows 2000 System
*************************************************
After enabling the USB 2.0 controller and rebooting your system, Windows 2000 setup will show a "New Hardware Found" dialog
box. Under Windows 2000, "Universal Serial Bus (USB) Controller" will be displayed.
1. Choose "Search for a suitable driver for my device (Recommended)". from the list, and then press "Enter".
2. Choose "Specify a location." and then press "Next"
3. Insert the Bonus CD in CD-ROM.
4. Type "[CD-ROM]:\Driver\Intel\USB2.0\Win2000" in the text box that appears. Press " OK ".
5. Click on "Next." A message informing you that Windows has found "Intel PCI to USB Enhanced Host Controller A1" should
appear.
6. Click on "Next," and then on "Finish."
************************************
Confirming Windows 2000 Installation
************************************
1. From Windows 2000, open the Control Panel from "My Computer" followed by the System icon.
2. Choose the "Hardware" tab, and then click the "Device Manager" tab.
3. Click the "+" in front of "Universal Serial Bus controllers". "Intel PCI to USB Enhanced Host Controller A1" should appear.
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* Windows XP Installation Guide
***********************************************
Installing Driver in Existing Windows XP System
***********************************************
After enabling the USB 2.0, Windows XP setup will show a "Found New Hardware" dialog box. Under Windows XP, "Universal
Serial Bus (USB) Controller" will be displayed.
1. Click on "Next," and from the generated list box, choose "Install from a list or special location (Advanced)", click "Next"
2. Click on "Next," and from the generated choices, choose "Include this location in the search:"
3. Insert the Bonus CD in CD-ROM.
4. Type "[CD-ROM]:\Driver\Intel\USB2.0\WinXP" in the text box that appears.
5. Click on "Next." A message informing you that Windows XP has found "Intel PCI to USB Enhanced Host Controller A1" should
appear.
6. When the New Hardware Wizard has finished installing the USB driver, click on "Finish"
**********************************
Confirming Windows XP Installation
**********************************
1. Tools/Folder Options…/View. Change below item:
2. Enable "Display the full path in the title bat".
3. Enable "Show Hidden files and folders".
4. Disable "Hide extensions of known files types".
5. Disable "Hide protected operating system files (Recommended)".
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6. Check USB driver version from My Computer, Local Disk C:, Show the content of this drive, Windows directory, Show the
content of this drive, System32 directory, Show the content of this drive, Drivers directory, Show the content of this drive, View,
Details.
1. USBEHCI.SYS - 3/20/2002.
2. USBPORT.SYS - 8/17/2001.
3. USBHUB.SYS - 8/17/2001.
So, new 3616 driver does not install complete.
[Install by manual]
1. Disable Windows File Protection (WFP)
1. Start button/run/Regedit.
2. Set HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = 1
2. Copy all USB files from CD to HDD.
1. Copy all test drivers to %windir%\driver cache\i386.
2. Copy all test drivers to %windir%\system32\dllcache
You need to copy file to this directory first. Otherwise, Windows XP will replace file from this directory to
system32\drivers.
3. Copy all test drivers to %windir%\system32\drivers.
3. Check USB driver version again.
1. USBEHCI.SYS - 3/20/2002.
2. USBPORT.SYS - 3/20/2001.
3. USBHUB.SYS - 3/20/2001.
Test USB20 HDD with restart for 10 times. The USB 20 HDD can detection with any problem for all 10 times.
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AAOOCCoonnffiigg UUttiilliittyy
AOpen always dedicated to provide users a much friendly computer environment. We now bring you a comprehensive system
detection utility. AOConfig is a Windows based utility with user-friendly interface that allows users to obtain information of the
operation system and hardware such as motherboard, CPU, memory, PCI devices and IDE devices. The powerful utility also
displays the version of BIOS and firmware for your convenience of maintenance.
Moreover, AOConfig allows users to save information in *.BMP or *.TXT format which users may collect the system information in
detail and send them to AOpen directly for technical support or for further diagnose of system problems.
1. The system page shows the
detailed information of the
motherboard, operating
system, processor, and
BIOS version.
2. The PCI device page shows
the configurations of all PCI
devices installed in your
motherboard.
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3. This page presents the IDE
device information, such as
serial number, manufacturer,
firmware version, and
4. From this page, users can
obtain the technical support
information of AOpen.
Moreover,
detailed information could be
saved in .bmp or .txt format.
NOTE:
AOConfig can be used under Windows 98SE/ME, NT4.0/2000, or even the latest Windows XP. Please also note
that AOConfig can only be operated in a system equipped with an AOpen motherboard. Before running
AOConfig, all applications must be closed.
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IInnssttaalllliinngg HHaarrddwwaarree MMoonniittoorriinngg UUttiilliittyy
You can install Hardware Monitoring Utility to monitor CPU temperature, fans and system voltage. The hardware monitoring
function is automatically implemented by BIOS and utility software. No hardware installation is needed.
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AACCPPII SSuussppeenndd ttoo HHaarrdd DDrriivvee
ACPI Suspend to Hard Drive is basically controlled by Windows operation system. It saves your current work (system status,
memory and screen image) into hard disk, and then the system can be totally power off. Next time, when power is on, you can
resume your original work directly from hard disk within few seconds without go through the Windows booting process and run your
application again. If your memory is 64MB, normally, you need to reserve at least 64MB HDD space to save your memory image.
When go into Suspend:
When power-on next time:
System
Image &
Status
System
Image &
Status
Save into
Restore within
seconds
Hard
Disk
Hard
Disk
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System Requirement
1. AOZVHDD.EXE 1.30b or later.
2. Delete config.sys and autoexec.bat.
Fresh installation of Windows 98 on a new system
1. Execute "Setup.exe /p j" to install Windows 98
2. After Windows 98's installation is complete, go to the Control Panel > Power Management.
a. Set Power Schemes > System Standby to "Never".
b. Click on "Hibernate" and select "Enable Hibernate Support" then "Apply".
c. Click on the "Advanced" tab, you'll see "Hibernate" on "Power Buttons". Note that this option will only be seen after step b
mentioned above has been completed; otherwise only "Standby" and "Shutdown" will be shown. Select "Hibernate" and
"Apply".
3. Clean boot into DOS and run AOZVHDD utility.
a. If you assign the whole disk to your Win 98 system (FAT 16 or FAT 32), please run "aozvhdd /c /file". Please remember
sufficient free space has to be reserved in the disk, e.g. if you have 64 MB DRAM and 16 MB VGA card installed, the system
needs at least 80 MB free space. The utility will locate the space automatically.
b. If you assign an individual partition for Win 98, please run "aozvhdd /c /partition". Of course, the system needs to provide
unformatted an empty partition.
4. Reboot system.
5. You've already implemented ACPI Suspend to-Hard Drive. Click "Start > Shut Down > Standby" then the screen will go off
immediately. And 1 minute or so will be taken for the system to save what's in the memory to the hard drive; the larger the memory
size the longer this process will take.
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Changing from APM to ACPI (Windows 98 only)
1. Run "Regedit.exe"
a. Go through the following path
HKEY_LOCAL_MACHINE
SOFTWARE
MICROSOFT
WINDOWS
CURRENT VERSION
DETECT
b. Select "ADD Binary" and name it as "ACPIOPTION".
c. Right click and select Modify, add "01" after "0000" to make it "0000 01".
d. Save changes.
2. Select "Add New Hardware" under Control Panel. Allow Windows 98 to detect new hardware. (It will find "ACPI BIOS" and
remove "Plug and Play BIOS")
3. Reboot system.
4. Clean boot into DOS and run "AOZVHDD.EXE /C /File"
Changing from ACPI to APM
1. Run "Regedit.exe"
a. Go through the following path
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HKEY_LOCAL_MACHINE
SOFTWARE
MICROSOFT
WINDOWS
CURRENT VERSION
DETECT
ACPI OPTION
b. Right click and select "Modify, change "01" to "02" to make it "0000 02".
c. Save changes.
2. Select "Add New Hardware" under Control Panel. Allow Windows 98 to detect new hardware. (It will find "Plug and Play BIOS"
and remove "ACPI BIOS")
3. Reboot system.
4. Run "Add New Hardware" again and it will find "Advanced Power Management Resource".
5. Click "OK".
Tip: "02" means Windows 98 is ACPI acknowledged
but the ACPI function is disabled.
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AACCPPII SSuussppeenndd ttoo RRAAMM ((SSTTRR))
This motherboard supports ACPI Suspend to RAM function. With this function, you can resume your original work directly from
DRAM without going through the Windows 98 booting process and run your application again. Suspend to DRAM saves your
current work in the system memory, it is faster than Suspend to Hard Drive but requires power supplied to DRAM, while Suspend to
Hard Drive requires no power.
When go into Suspend:
When power-on next time:
System Image & Status
in the DRAM
System Image & Status
in the DRAM
Backup by 3.3V
Power
Power back to
Other System
Devices
Other System
Devices
Power loss
Power back to
w
rk
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To implement ACPI Suspend to DRAM, please follow the procedures as below:
System Requirement
An ACPI OS is required. Currently, except Windows 95 and Windows NT, all other Windows Systems support ACPI.
Procedures
1. Changed the following BIOS settings.
BIOS Setup > Power Management Setup > ACPI Function: Enabled
BIOS Setup > Power Management Setup > ACPI Suspend Type: S3.
2. Go to Control Panel > Power Management. Set “Power Buttons” to “Standby”.
3. Press power button or standby button to wake up the system.
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PPhhooeenniixx--AAWWAARRDD BBIIOOSS
System parameters can be modified by going into BIOS Setup menu, this menu allows you to configure the system parameters and
save the configuration into the 128 bytes CMOS area, (normally in the RTC chip or in the main chipset).
Phoenix-Award BIOS™ installed in the Flash ROM
provides critical low-level support for standard devices such as hard disk drives, serial and parallel ports.
Most BIOS settings of MX4GER / MX4PER have been optimized by AOpen’s R&D engineering team. But, the default setting of
BIOS still can’t fine-tune the chipset controlling entire system. Therefore, the rest of this chapter intends to guide you the process
of configuring your system setup.
To enter to BIOS setup menu
, press <Del> when POST (Power-On Self Test) screen is shown on your monitor.
Note: Because the BIOS code is the most often
changed part of the motherboard design, the BIOS
information contained in this manual may be
different with actual BIOS that come with your
motherboard.
of the motherboard is a custom version of an industry standard BIOS. The BIOS
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AAbboouutt BBIIOOSS FFuunnccttiioonn DDeessccrriippttiioonn……
AOpen always dedicates to give user a more friendly computer system. Now, we include all function descriptions of BIOS setup
program into the BIOS Flash ROM. When you select one function of BIOS setup program, the function description will appear at
the right side of screen. Therefore, you don’t need to read this manual while you change BIOS settings.
Menu Items Select Window Item Function Description Window
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HHooww TToo UUssee PPhhooeenniixx--AAwwaarrdd™™ BBIIOOSS SSeettuupp PPrrooggrraamm
Generally, you can use arrow keys to highlight items that you want to choose, then press <Enter> key to select, and use the <Page
Up> and <Page Down> key to change setting values. You can also press <F1> key for help and press <Esc> key to quit
Phoenix-Award™ BIOS setup program. The following table provides details about how to use keyboard in the Phoenix-Award™
BIOS setup program. By the way, all products of AOpen also provide a special function in BIOS setup; you can press <F3> key
selecting you preferred menu language.
Key Description
Page Up or + Changing setting to next value or increase the value.
Page Down or - Changing setting to previous value or decrease value.
Enter Select the item.
Esc 1. In main menu: Quit and don’t save any change.
2. In sub menu: Exit current menu to main menu.
Up Arrow Highlight previous item.
Down Arrow Highlight next item.
Left Arrow Move the light bar to left side of menu.
Right Arrow Move the light bar to right side of menu.
F1 Get menu or item help description.
F3 Changing menu language.
F5 Load previous setting value from CMOS.
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Key Description
F6 Load fail-save setting value from CMOS.
F7 Load turbo setting value from CMOS.
F10 Save changed setting and exit setup program.
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HHooww TToo EEnntteerr BBIIOOSS SSeettuupp
After you finish jumper settings and connect correct cables, power on and enter the BIOS Setup. Press <Del> during POST
(Power-On Self Test) and choose "Load Setup Defaults" for recommended optimal performance.
Del
Warning: Please avoid of using "Load Turbo Defaults", unless
you are sure your system components (CPU, DRAM, HDD, etc.)
are good enough for turbo setting.
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BBIIOOSS UUppggrraaddee uunnddeerr WWiinnddoowwss eennvviirroonnmmeenntt
With outstanding R&D ability of AOpen, we now bring you a whole new BIOS Flash wizard ----
EzWinFlash. With an eye to users convenience, EzWinFlash combines the BIOS binary code
and flash module together, so the only thing you have to do is just clicking on the utility you downloaded from web and let it helps
you complete the flash process automatically. EzWinFlash detects your motherboard and checks the BIOS version cleverly to
prevent your system from any possible failure. Moreover, EzWinFlash has been taken into consideration to go with any windows
platform you might be using, no matter if you’re using Windows 95/98, 98SE/ME, NT4.0/2000, or even the latest Windows XP.
In the meanwhile, in order to provide a much more user-friendly operating environment, AOpen EzWinFlash is natively designed to
have multi-language function to provide easier way for users’ usage in changing BIOS setting.
Caution: By updating your motherboard,
you are taking a risk of BIOS flash
failure. If your motherboard is working
stable, and there are no major bugs that
had been fixed by a latter BIOS revision,
we recommend that you DO NOT try to
upgrade your BIOS.
If you intent on upgrading, PLEASE BE
SURE to get the right BIOS revision for
the right motherboard model to avoid any
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You may accomplish BIOS upgrade procedure with EzWinFlash by the following steps, and it’s STRONGLY RECOMMENDED to
close all the applications before you start the upgrading.
1. Download the new version of BIOS package zip
2. Unzip the download BIOS package (ex: WMX4GER102.ZIP) with WinZip (http://www.winzip.com
3. Save the unzipped files into a folder, for example, WMX4GER102.EXE & WMX4GER102.BIN.
4. Double click on the WMX4GER102.EXE, EzWinFlash will detect the model name and BIOS version of your motherboard. If
you had got the wrong BIOS, you will not be allowed to proceed with the flash steps.
5. You may select preferred language in the main menu, then click [Start Flash] to start the BIOS upgrade procedure.
6. EzWinFlash will complete all the process automatically, and a dialogue box will pop up to ask you to restart Windows. You
may click [YES] to reboot Windows.
7. Press <Del> at POST to enter BIOS setup
It is strongly recommended NOT to turn off the power or run any application during FLASH PROCESS.
Warning: The new BIOS upgrade will permanently replace your
original BIOS’s settings when flashing. You may need to
reconfigure your BIOS setting so that your system can go back to
file from AOpen official web site. (ex: http://www.aopen.com)
) in Windows environment.
, choose "Load Setup Defaults", then “Save & Exit Setup”. Done!
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OOvveerrcclloocckkiinngg
As a leading manufacturer in motherboard industry, AOpen always listens to what customers want and develop products to fit
different user's requirements. Reliability, compatibility, leading technology and friendly features are our basic goals when designing
motherboards. Other than above mentioned design criteria, there are power users who are always seeking to push the limitation of
the system performance by overclocking which we call them "Overclocker".
This section is dedicated to overclockers.
This high performance motherboard is designed for maximum 400/533MHz CPU bus clock. But it comes with clock generator of
248MHz when we design it to accommodate with future CPU bus clock. Not only that, the CPU clock ratio can be up to 24x that
supports almost all of Pentium
But not guaranty. ☺
Tip: Note that overclocking may also
cause thermal problem. Please make
sure that the cooling fan and the
heatsink were adequate to dissipate
excessive heat that's generated by
overclocking the CPU.
☺
☺☺
®
4 CPUs in the future and provides flexibility for overclockers.
Warning: The design of this product follows CPU and chipset vendor's
design guideline. Any attempts to push beyond product specification are
not recommended and you are taking your own risk to damage your
system or important data. Before doing overclocking, you must make sure
your components are able to tolerate such abnormal setting, especially
CPU, DRAMs, hard disks, and AGP VGA cards.
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VVGGAA CCaarrdd && HHaarrdd DDiisskk
VGA and HDD is key components for overclocking, for your reference, the following list are what have been successful overclocked
in our lab. Please note that AOpen can not guaranty they can be successful overclocked again. Please check the Available
Vendor List (AVL) by link to our official website.
VGA: http://www.aopen.com.tw/tech/report/overclk/mb/vga-oc.htm
HDD: http://www.aopen.com.tw/tech/report/overclk/mb/hdd-oc.htm
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GGlloossssaarryy
AACC9977
Basically, AC97 specification separates sound/modem circuit to two parts, digital processor and a CODEC for analogy I/O they are
linked by AC97 link bus. Since digital processor can be put into motherboard main chipset, the cost of sound/modem onboard
solution can be reduced.
AACCPPII ((AAddvvaanncceedd CCoonnffiigguurraattiioonn && PPoowweerr IInntteerrffaaccee))
ACPI is the power management specification of PC97 (1997). It intends to save more power by taking full control of power
management to operating system and bypass BIOS
operating system (such as Windows 98). This is a bit similar as the PnP
switch to control the power state transition.
AAGGPP ((AAcccceelleerraatteedd GGrraapphhiicc PPoorrtt))
AGP is a bus interface targeted for high-performance 3D graphic. AGP supports only memory read/write operation and
single-master single-slave one-to-one only. AGP uses both rising and falling edge of the 66MHz clock, for 2X AGP, the data transfer
rate is 66MHz x 4byte x 2 = 528MB/s. AGP is now moving to 4X mode, 66MHz x 4byte x 4 = 1056MB/s. AOpen is the first company
to support 4X AGP motherboards by both AX6C (Intel 820) and MX64/AX64 (VIA 694x), started from Oct 1999.
. The chipset or super I/O chip needs to provide standard register interface to
register interface. ACPI defines ATX momentary soft power
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AAMMRR ((AAuuddiioo//MMooddeemm RRiisseerr))
The CODEC circuit of AC97 sound/modem solution can be put on motherboard or put on a riser card (AMR card) that connects to
motherboard through AMR connector.
AAOOppeenn BBoonnuuss PPaacckk CCDD
A disc bundled with AOpen motherboard product; there are motherboard drivers, Acrobat Reader for PDF online manual and other
useful utilities.
AAPPMM ((AAddvvaanncceedd PPoowweerr MMaannaaggeemmeenntt))
Unlike ACPI, BIOS controls most APM power management functions. AOpen Suspend to Hard Drive is a good example of APM
power management.
AATTAA ((AATT AAttttaacchhmmeenntt))
ATA is the specification of diskette interface. In 80’s, many software and hardware manufacturers instituted the ATA specification
together. The AT is meaning International Business Machines Corporation (IBM) personal computer/AT’s bus structure.
AATTAA//6666
ATA/66 uses both rising edge and falling edge but doubles UDMA/33 transfer rate. The data transfer rate is 4 times of the PIO
mode 4 or DMA mode 2, 16.6MB/s x4 = 66MB/s. To use ATA/66, you need special ATA/66 IDE cable.
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AATTAA//110000
ATA/100 is a new IDE specification under developing. ATA/100 uses both rising edge and falling edge as ATA/66 but clock cycle
time is reduced to 40ns. The data transfer rate is (1/40ns) x 2 bytes x 2 = 100MB/s. To use ATA/100, you need special 80-wire IDE
cable, the same as ATA/66.
BBIIOOSS ((BBaassiicc IInnppuutt//OOuuttppuutt SSyysstteemm))
BIOS is a set of assembly routine/program that reside in EPROM or Flash ROM. BIOS controls Input/output devices and other
hardware devices of motherboard. In general, to provide hardware independent portability, operation system and drivers is required
to access BIOS without directly access hardware devices.
BBuuss MMaasstteerr IIDDEE ((DDMMAA mmooddee))
The traditional PIO (Programmable I/O) IDE requires the CPU to involve in all the activities of the IDE access including waiting for
the mechanical events. To reduce the workload of the CPU, the bus master IDE device transfers data from/to memory without
interrupting CPU, and releases CPU to operate concurrently while data is transferring between memory and IDE device. You need
the bus master IDE driver and the bus master IDE HDD to support bus master IDE mode.
CCNNRR ((CCoommmmuunniiccaattiioonn aanndd NNeettwwoorrkkiinngg RRiisseerr))
The CNR specification provides the PC industry the opportunity to deliver a flexible and cost reduced method of implementing LAN,
home networking, DSL, USB, wireless, audio and modem subsystems widely used in today's "connected PCs". The CNR
specification is an open industry specification and is supported by OEMs, IHV card manufacturers, silicon supplier and Microsoft.
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CCOODDEECC ((CCooddiinngg aanndd DDeeccooddiinngg))
Normally, CODEC means a circuit that can do digital to analog conversion and also the analog to digital conversion. It is part of
AC97
sound/modem solution.
DDDDRR ((DDoouubbllee DDaattaa RRaatteedd)) SSDDRRAAMM
DDR SDRAM utilizes the existing DRAM infrastructure and technology while doubling the nominal bandwidth available to systems
in an easy to design and simple to adopt way. Initially a perfect solution for memory intensive server and workstation applications,
DDR low cost and low voltage will ultimately make it an ideal solution for all segments of the PC market, high performance desktop
and mobile PCs, Value PCs and even Internet Appliances and mobile devices.
DDIIMMMM ((DDuuaall IInn LLiinnee MMeemmoorryy MMoodduullee))
DIMM socket has total 168-pin and supports 64-bit data. It can be single or double side, the golden finger signals on each side of
PCB are different, and that is why it was called Dual In Line. Almost all DIMMs are made by SDRAM
that some old DIMMs are made by FPM/EDO
DDMMAA ((DDiirreecctt MMeemmoorryy AAcccceessss))
Channel for communications between the memory and surrounding devices.
, which operate at 3.3V. Note
and only operate at 5V. Do not confuse them with SDRAM DIMM.
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MMXX44GGEERR // MMXX44PPEERR OOnnlliinnee MMaannuuaall
EECCCC ((EErrrroorr CChheecckkiinngg aanndd CCoorrrreeccttiioonn))
The ECC mode needs 8 ECC bits for 64-bit data. Each time memory is accessed; ECC bits are updated and checked by a special
algorithm. The ECC algorithm has the ability to detect double-bit error and automatically correct single-bit error while parity mode
can only detect single-bit error.
EEDDOO ((EExxtteennddeedd DDaattaa OOuuttppuutt)) MMeemmoorryy
The EDO DRAM technology is actually very similar to FPM (Fast Page Mode). Unlike traditional FPM that tri-states the memory
output data to start the pre-charge activity, EDO DRAM holds the memory data valid until the next memory access cycle, that is
similar to pipeline effect and reduces one clock state.
EEEEPPRROOMM ((EElleeccttrroonniicc EErraassaabbllee PPrrooggrraammmmaabbllee RROOMM))
Also known as E2PROM. Both EEPROM and Flash ROM can be re-programmed by electronic signals, but the interface technology
is different. Size of EEPROM is much smaller than flash ROM.
EEPPRROOMM ((EErraassaabbllee PPrrooggrraammmmaabbllee RROOMM))
Traditional motherboard stores BIOS code in EPROM. EPROM can only be erased by ultra-violet (UV) light. If BIOS has to be
upgraded, you need to remove EPROM from motherboard, clear by UV light, re-program, and then insert back.
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