Gigabyte GA-8AENXP-DW User manual

GA-8AENXP-DW
Intel®Pentium®4 LGA775 Processor Motherboard
User's Manual
Rev. 1001
12ME-8AENXPDW-1001

Motherboard
GA-8AENXP-DW
Jan. 15, 2005
Jan. 15, 2005

Safety, Care and Regulatory Information
Important safety information
Read and follow all instructions marked on the product and in the documentation before you operate
your system. Retain all safety and operating instructions for future use.
1. The product should be operated only from the type of power source indicated on the rating label.
2. If your computer has a voltage selector switch, make sure that the switch is in the proper position
for your area. The voltage selector switch is set at the factory to the correct voltage.
3. The plug-socket combination must be accessible at all times because it serves as the main
disconnecting device.
4. All product shipped with a three-wire electrical grounding-type plug only fits into a grounding-type
power outlet. This is a safety feature. The equipment grounding should be in accordance with local
and national electrical codes. The equipment operates safely when it is used in accordance with its
marked electrical ratings and product usage instructions.
5. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire.
They may explode. Check with codes for possible special disposal instructions.
6. Do not use this product near water or a heat source.
7. Set up the product on a stable work surface or so as to ensure stability of the system.
8. Openings in the case are provided for ventilation. Do not block or cover these openings. Make
sure you provide adequate space around the system for ventilation when you set up your work
area. Never insert objects of any kind into the ventilation openings.
9. To avoid electrical shock, always unplug all power cables and modem cables from the wall outlets
before removing covers.
10. Allow the product to cool before removing covers or touching internal components.
Battery safety information
1. The lithium battery on the system board of the computer contains lithium and can explode if not
properly used, handled, or disposed of. Do not: (1) throw or immerse into water, (2) heat to more
than 100 deg C (212 deg F), or (3) repair or disassemble.
2. Dispose of it as required by local ordinances or regulations.
Radio equipment safety information
1. Keep the radio components at least 20 cm from a pacemaker, as otherwise the proper operation of
the pacemaker may be impaired by radio waves.
2. The transmitted radio waves can cause an unpleasant humming in hearing aids.
3. Do not let the radio components work near flammable gases or into hazardous environments (e.g.
paintshops), as the transmitted radio waves can cause an explosion or a fire.

Federal Communications Commission (FCC) Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may cause undesired
operation.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
xx
xx
xReorient or relocate the receiving antenna.
xx
xx
xIncrease the separation between the equipment and receiver.
xx
xx
xConnect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
xx
xx
xConsult a dealer or experienced TV/radio technician for help.
Properly shielded and grounded cables and connectors must be used in order to meet FCC emission
limits. Neither the Dealer nor the Manufacturer are responsible for any radio or television interference
caused by using other than recommended cables and connectors or by unauthorized changes or
modifications to this equipment. Unauthorized changes or modifications could void the user's authority
to operate the equipment.
Canadian Department of Communications Compliance Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital
apparatus as set out in the radio interference regulations of Industry Canada.

European Community Directive Conformance Statement: R&TTE Directive
This wireless LAN card has been approved in accordance with Council Decision 99/5/EC on radio
equipment and terminal telecommunication equipment (R&TTE Directive 1999/5/EC) as per
* EN 60950 Safety of Information Technology equipment
* EN 300 328 Technical requirements for radio equipment
* EN 301 489 EMC requirements for radio equipment
This equipment is suitable for use in all the European Community Member States. Contact the
corresponding government office of the respective country for current information on possible operating
restrictions. If your country is not included in the list, then please contact the corresponding supervisory
authority as to whether the use of this product is permitted in your country.

Copyright
© 2005 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in the manual are legally registered to their respective companies.
Notice
The written content provided with this product is the property of Gigabyte.
No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any
means without Gigabyte's prior written permission. Specifications and features are subject to
change without prior notice.
Product Manual Classification
In order to assist in the use of this product, Gigabyte has categorized the user manual in the
following:
For quick installation, please refer to the "Hardware Installation Guide" included with the
product.
For detailed product information and specifications, please carefully read the
"Product User Manual".
For detailed information related to Gigabyte's unique features, please go to the
"Technology Guide" section on Gigabyte's website to read or download the information
you need.
For more product details, please click onto Gigabyte's website at www.gigabyte.com.tw

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Table of Contents
Safety, Care and Regulatory Information ........................................................................ 3
GA-8AENXP-DW Motherboard Layout .......................................................................... 9
Block Diagram .............................................................................................................. 10
Chapter 1 Hardware Installation .................................................................................. 13
1-1 Considerations Prior to Installation .................................................................. 13
1-2 Feature Summary .......................................................................................... 14
1-3 Installation of the CPU and Heatsink .............................................................. 16
1-3-1 Installation of the CPU ......................................................................................... 16
1-3-2 Installation of the Heatsink .................................................................................. 17
1-4 Installing/Removing Cool-Plus (Northbridge Cooling Fan) .............................. 18
1-5 Installation of Memory .................................................................................... 18
1-6 Installation of Expansion Cards ...................................................................... 20
1-7 Installation of U-Plus DPS (Universal Plus Dual Power System) ................. 21
1-8 I/O Back Panel Introduction ........................................................................... 22
1-9 Connectors Introduction .................................................................................. 23
Chapter 2 BIOS Setup................................................................................................ 35
The Main Menu (For example: BIOS Ver. : F1) ....................................................... 36
2-1 Standard CMOS Features ............................................................................. 38
2-2 Advanced BIOS Features .............................................................................. 40
2-3 Integrated Peripherals ..................................................................................... 42
2-4 Power Management Setup ............................................................................. 46
2-5 PnP/PCI Configurations ................................................................................. 47
2-6 PC Health Status ........................................................................................... 48
2-7 MB Intelligent Tweaker(M.I.T.) ....................................................................... 50
2-8 SelectLanguage ............................................................................................. 52
2-9 Load Fail-Safe Defaults ................................................................................... 52
2-10 Load Optimized Defaults ................................................................................. 53
2-11 Set Supervisor/User Password ..................................................................... 53
2-12 Save & Exit Setup ......................................................................................... 54
2-13 Exit Without Saving ....................................................................................... 54

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Chapter 3 Drivers Installation ...................................................................................... 55
3-1 Install Chipset Drivers .................................................................................... 55
3-2 SoftwareApplications ..................................................................................... 56
3-3 Driver CD Information .................................................................................... 56
3-4 Hardware Information ..................................................................................... 57
3-5 Contact Us ..................................................................................................... 57
Chapter 4 Appendix ................................................................................................... 59
4-1 Unique Software Utilities ................................................................................ 59
4-1-1 EasyTune 5 Introduction ..................................................................................... 60
4-1-2 Xpress Recovery Introduction ........................................................................... 61
4-1-3 Flash BIOS Method Introduction ........................................................................ 64
4-1-4 Serial ATA BIOS Setting Utility Introduction ...................................................... 75
4-1-5 Configuring the Onboard Wireless LAN ............................................................ 87
4-1-6 2- / 4- / 6- / 8- Channel Audio Function Introduction ...................................... 89
4-2 Troubleshooting ............................................................................................... 94

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GA-8AENXP-DW Motherboard Layout
ATX_12V
CPU_FAN
VRM_CONN
Intel 925XE
PCIE_16
NB_FAN
CODEC
IR
IT8712F
SATA3_SB
SATA2_SB
SATA0_SII
Intel ICH6R
SiI3114 Main
BIOS
Backup
BIOS
PCIE_1
PCIE_2
PCI1
PCI2
F1_1394
F2_1394
F_USB2
F_USB1
SATA1_SB
SATA0_SB
TSB82AA2
TSB81BA3 PDC 20779
BAT
PWR_FAN
ATX
IDE1
FDD
CLR_CMOS
SYS_FAN
SATA1_SII SATA2_SII SATA3_SII
GA-8AENXP-DW
MS
LGA775
AUDIO1
SPDIF_I
LPT
USB LAN2
USB LAN1
AZALIA_FP
CD_IN
SPDIF_O
AUDIO2
F_PANEL
PWR_LED
KB
PCI3
Marvell
8053
WDSI
WSMA
SATA0_PR SATA1_PR
Marvell
8053
CI
IDE2
Atheros WLAN
COMA
DDRII1 DDRII2 DDRII3 DDRII4

- 10 -
Block Diagram
(Note) To use a DDRII 711 memory module on the motherboard, you must install an 1066MHz FSB
processor and overclock in BIOS. To use a DDRII 600 memory module on the motherboard,
you must install an 800MHz FSB processor and overclock in BIOS.
Line-Out
MIC
LGA775
Processor
CPUCLK+/-(266/200/133MHz)
PCI Express x16
33MHz
Host
Interface
Intel
925XE
MCH MCHCLK (266/200/133MHz)
66MHz
48MHz
DDRII 711/600/533/400MHz(Note)
DIMM
24MHz
33MHz
IT 8712F
ATA33/66/100 IDE
Channel
Intel
ICH6R
14.318MHz
Dual BIOS
CODEC
Line-In
PCICLK
(33MHz)
3 PCI
PCI Bus
3 IEEE1394b
SPDIF In
SPDIF Out
2 PCI Express x 1 Ports
PCI Express x 1 Bus
8 USB
Ports
Dual Channel Memory
Floppy
PS/2 KB/Mouse
LPT Port
COM Port
TSB82AA2
TSB81BA3
SiI3114
Side Speaker Out
Center/Subwoofer Speaker Out
Surround Speaker Out
PCI-ECLK
(100MHz)
PCI-ECLK
(100MHz)
Marvell
8053
RJ45
4 Serial ATA
Marvell
8053
RJ45
4 Serial ATA
2 Serial ATA II
PDC20779
ATA33/66/100/133 IDE Channel
Atheros
AR2414A
SMA

- 11 -

- 12 -

Hardware Installation- 13 -
English
1-1 Considerations Prior to Installation
Preparing Your Computer
The motherboard contains numerous delicate electronic circuits and components which can
become damaged as a result of electrostatic discharge (ESD). Thus, prior to installation, please
follow the instructions below:
1. Please turn off the computer and unplug its power cord.
2. When handling the motherboard, avoid touching any metal leads or connectors.
3. It is best to wear an electrostatic discharge (ESD) cuff when handling electronic components
(CPU, RAM).
4. Prior to installing the electronic components, please have these items on top of an antistatic
pad or within a electrostatic shielding container.
5. Please verify that you the power supply is switched off before unplugging the power supply
connector from the motherboard.
Installation Notices
1. Prior to installation, please do not remove the stickers on the motherboard. These stickers
are required for warranty validation.
2. Prior to the installation of the motherboard or any hardware, please first carefully read the
information in the provided manual.
3. Before using the product, please verify that all cables and power connectors are connected.
4. To prevent damage to the motherboard, please do not allow screws to come in contact with
the motherboard circuit or its components.
5. Please make sure there are no leftover screws or metal components placed on the motherboard
or within the computer casing.
6. Please do not place the computer system on an uneven surface.
7. Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
8. If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certified computer technician.
Instances of Non-Warranty
1. Damage due to natural disaster, accident or human cause.
2. Damage as a result of violating the conditions recommended in the user manual.
3. Damage due to improper installation.
4. Damage due to use of uncertified components.
5. Damage due to use exceeding the permitted parameters.
6. Product determined to be an unofficial Gigabyte product.
Chapter 1Hardware Installation

GA-8AENXP-DW Motherboard - 14 -
English
CPU Supports the latest Intel®Pentium®4 LGA775 CPU
Supports 1066/800/533MHz FSB
L2 cache varies with CPU
Chipset Northbridge: Intel®925XE Express Chipset
Southbridge: Intel®ICH6R
Memory 4 DDR II DIMM memory slots (supports up to 4GB memory) (Note 1)
Supports dual channel DDR II 711/600/533/400 unbuffered DIMM(Note 2)
Supports 1.8V DDR II DIMM
Slots 1 PCI Express x 16 slot
2 PCI Express x 1 slots
3 PCI slots
IDE Connections 1 port from ICH6R (IDE1) (UDMA 33/ATA 66/ATA 100), allows connection of
2 IDE devices
1 port from PDC20779 (IDE2)(UDMA 33/ATA 66/ATA 100/ATA 133), allows
connection of 2 IDE hard drives
FDD Connections 1 FDD connection, allows connection of 2 FDD devices
Onboard SATA 4 SATA ports from ICH6R controller (SATA0_SB, SATA1_SB, SATA2_SB,
SATA3_SB);
4 SATA ports from SiI3114 controller (SATA0_SII, SATA1_SII, SATA2_SII,
SATA3_SII)
2 SATA II ports from PDC20779 controller (SATA0_PR, SATA1_PR)
Peripherals 1 parallel port supporting Normal/EPP/ECP mode
8 USB 2.0/1.1 ports (rear x 4, front x 4 via cable)
3 IEEE1394b ports (requires cable)
Onboard COMA connection
1 front audio connector
1 IR connector
1 PS/2 keyboard port
1 PS/2 mouse port
Onboard LAN Onboard Marvell 8053 chip (10/100/1000 Mbit) (LAN1/LAN2)
2 RJ45 ports
Onboard Audio ALC880 CODEC
Supports Jack Sensing function
Supports 2 / 4 / 6 / 8 channel audio
Supports Line In ; Line Out (Front Speaker Out) ; MIC ; Surround Speaker
Out (Rear Speaker Out) ; Center/Subwoofer Speaker Out ; Side Speaker
Out connection
SPDIF In/Out connection
CD In connection
1-2 Feature Summary
(Note 1) Due to standard PC architecture, a certain amount of memory is reserved for system usage
and therefore the actual memory size is less than the stated amount. For example, 4 GB of
memory size will instead be shown as 3.xxGB memory during system startup.
(Note 2) To use a DDRII 711 memory module on the motherboard, you must install an 1066MHz FSB
processor and overclock in BIOS. To use a DDRII 600 memory module on the motherboard,
you must install an 800MHz FSB processor and overclock in BIOS.

Hardware Installation- 15 -
English
I/O Control IT8712F
Hardware Monitor System voltage detection
CPU temperature detection
CPU / System / Power fan speed detection
CPU warning temperature
CPU / System / Power fan failure warning
CPU smart fan control
Onboard SATA RAID Onboard ICH6R chipset (SATA0_SB, SATA1_SB, SATA2_SB, SATA3_SB)
- supports data striping (RAID 0) or mirroring (RAID 1) function
- supports data transfer rate of up to 150 MB/s
- supports hot plugging function
- supports a maximum of 4 SATA connections
- supported on the Win 2000/XP operating systems
Onboard Silicon Image SiI3114 chipset (SATA0_SII, SATA1_SII, SATA2_SII, SATA3_SII)
- supports data striping (RAID 0), mirroring (RAID 1) or
striping + mirroring (RAID 0+1)
- supports data transfer rate of up to 150 MB/s
- supports hot plugging function
- supports a maximum of 4 SATA connections
- supported on the Win 2000/XP/NT/98/Me operating systems
Onboard Promise PDC20779 chipset (SATA0_PR, SATA1_PR)
- supports data striping (RAID 0), mirroring (RAID 1)
- supports data transfer rate of up to 300 MB/s
- supports hot plugging function
- supports a maximum of 2 SATA II connections
- supported on the Win 2000/XP operating systems
Onboard Wireless LAN Onboard Atheros AR2414A chip
- supports IEEE 802.11b, 802.11g standards, Atheros Super G mode
- supports up to 11Mbps/54Mbps/108Mbps wireless data transmission
- supports frequency band: 2412 - 2483.5 MHz
- supports modulation technology: OFDM/DSSS
- supports modulation techniques: BPSK, QPSK, 16 QAM, 64 QAM,
DBPSK, DQPSK, CCK
- supports ouput level: 20dBm (maximum) @ antenna connector
BIOS Use of licensed AWARD BIOS
Supports Dual BIOS/Q-Flash/Multilanguage BIOS
Additional Features Supports U-Plus DPS
Supports @BIOS
Supports EasyTune 5 (Note)
Overclocking Over Voltage via BIOS (CPU/ FSB/DDR II/ PCI-E)
Over Clock via BIOS (CPU/ DDR II/ PCI-E)
Form Factor ATX form factor; 30.5cm x 24.4cm
(Note) EasyTune 5 functions may vary depending on different motherboards.

GA-8AENXP-DW Motherboard - 16 -
English
1-3 Installation of the CPU and Heatsink
Before installing the CPU, please comply with the following conditions:
1. Please make sure that the motherboard supports the CPU.
2. Please take note of the one indented corner of the CPU. If you install the CPU in the wrong
direction, the CPU will not insert properly. If this occurs, please change the insert direction
of the CPU.
3. Please add an even layer of heat sink paste between the CPU and heatsink.
4. Please make sure the heatsink is installed on the CPU prior to system use, otherwise
overheating and permanent damage of the CPU may occur.
5. Please set the CPU host frequency in accordance with the processor specifications. It is not
recommended that the system bus frequency be set beyond hardware specifications since it
does not meet the required standards for the peripherals. If you wish to set the frequency
beyond the proper specifications, please do so according to your hardware specifications
including the CPU, graphics card, memory, hard drive, etc.
HT functionality requirement content :
Enabling the functionality of Hyper-Threading Technology for your computer system requires all
of the following platform components:
- CPU: An Intel®Pentium 4 Processor with HT Technology
- Chipset: An Intel®Chipset that supports HT Technology
- BIOS: A BIOS that supports HT Technology and has it enabled
- OS: An operation system that has optimizations for HT Technology
1-3-1 Installation of the CPU
Fig. 1
Gently lift the metal
lever located on the
CPU socket to the
upright position.
Metal Lever Fig. 2
Remove the plastic
covering on the CPU
socket.
Fig. 4
Once the CPU is
properly inserted,
please replace the
plastic covering and
push the metal lever
back into its original
position.
Fig. 3
Notice the small gold
colored triangle located
on the edge of the CPU
socket. Align the
indented corner of the
CPU with the triangle and gently insert the CPU into
position. (Grasping the CPU firmly between your
thumb and forefinger, carefully place it into the socket
in a straight and downwards motion. Avoid twisting or
bending motions that might cause damage to the CPU
during installation.)

Hardware Installation- 17 -
English
1-3-2 Installation of the Heatsink
Fig.1
Please apply an even layer of heatsink paste on
the surface of the installed CPU.
The heatsink may adhere to the CPU as a result of hardening of the heatsink paste. To prevent
such an occurrence, it is suggested that either thermal tape rather than heat sink paste be used for
heat dissipation or using extreme care when removing the heatsink.
Fig. 6
Finally, please attach the power connector of the
heatsink to the CPU fan header located on the
motherboard.
Fig. 3
Place the heatsink atop the CPU and make sure
the push pins aim to the pin hole on the
motherboard. Pressing down the push pins
diagonally.
Fig. 2
(Turning the push pin along the direction of arrow is
to remove the heatsink, on the contrary, is to install.)
Please note the direction of arrow sign on the male
push pin doesn't face inwards before installation. (This
instruction is only for Intel boxed fan)
Fig. 4
Please make sure the Male and Female push pin are
joined closely. (for detailed installation instructions,
please refer to the heatsink installation section of the
user manual)
Male Push Pin
Female Push Pin
The top of Female Push Pin
Fig. 5
Please check the back of motherboard after
installing. If the push pin is inserted as the picture,
the installation is complete.

GA-8AENXP-DW Motherboard - 18 -
English
Before installing the memory modules, please comply with the following conditions:
1. Please make sure that the memory used is supported by the motherboard. It is
recommended that memory of similar capacity, specifications and brand be used.
2. Before installing or removing memory modules, please make sure that the computer power
is switched off to prevent hardware damage.
3. Memory modules have a foolproof insertion design. A memory module can be installed in
only one direction. If you are unable to insert the module, please switch the direction.
Notch
DDR II
1-5 Installation of Memory
The motherboard supports DDR II memory modules, whereby BIOS will automatically detect memory
capacity and specifications. Memory modules are designed so that they can be inserted only in one direction.
The memory capacity used can differ with each slot.
1-4 Installing/Removing Cool-Plus (Northbridge Cooling Fan)
Fig.1
To attach Cool-Plus to
a heatsink, align the
extensions on both
sides with the grooves
in the heatsink as
shown. Firmly press
down until it snaps into
position.
Fig.2
Once the fan is properly
affixed onto the
heatsink, plug the
power cable into the
NB_FAN connector.
Fig.3
Before proceeding, first check to make sure that the fan's power cable is
disconnected. Then, while applying pressure to the top of the fan, carefully
use a screwdriver to dislodge the extension on one side.
Exerting too much pressure on the fan during removal might cause
the side extensions to break-off.

Hardware Installation- 19 -
English
Fig.1
The DIMM socket has a notch, so the DIMM memory module can only fit
in one direction. Insert the DIMM memory module vertically into the DIMM
socket. Then push it down.
Fig.2
Close the plastic clip at both edges of the DIMM sockets to lock the DIMM
module.
Reverse the installation steps when you wish to remove the DIMM module.
Dual Channel DDR II
GA-8AENXP-DW supports the Dual Channel Technology. After operating the
Dual Channel Technology, the bandwidth of Memory Bus will double.
GA-8AENXP-DW includes 4 DIMM sockets, and each Channel has two DIMM sockets as following:
Channel A : DDR II 1, DDR II 2
Channel B : DDR II 3, DDR II 4
If you want to operate the Dual Channel Technology, please note the following explanations due to the
limitation of Intel chipset specifications.
1. Dual channel memory cannot be used if one or three DDR II memory modules are installed.
2. If two DDR II memory modules are installed (same storage capacity), one must be added to
the Channel A slot and the other in the Channel B slot in order to use dual channel memory.
Dual channel memory cannot function if both DDR II memory modules are installed on the
same channel.
3. If four DDR II memory modules are installed, please use memory of the same storage capacity
in order to use dual channel memory and for BIOS to detect all the DDR II memory modules.
We'll strongly recommend our user to slot two DDR II memory modules into the DIMMs with the same
color in order for Dual Channel Technology to work.
The following table is for Dual Channel Technology combination: (DS: Double Side, SS: Single Side)
2 memory modules
4 memory modules
DDR II 1 DDR II 2 DDR II 3 DDR II 4
DS/SS X DS/SS X
X DS/SS X DS/SS
DS/SS DS/SS DS/SS DS/SS

GA-8AENXP-DW Motherboard - 20 -
English
1-6 Installation of Expansion Cards
You can install your expansion card by following the steps outlined below:
1. Read the related expansion card's instruction document before install the expansion card into the
computer.
2. Remove your computer's chassis cover, screws and slot bracket from the computer.
3. Press the expansion card firmly into expansion slot in motherboard.
4. Be sure the metal contacts on the card are indeed seated in the slot.
5. Replace the screw to secure the slot bracket of the expansion card.
6. Replace your computer's chassis cover.
7. Power on the computer, if necessary, setup BIOS utility of expansion card from BIOS.
8. Install related driver from the operating system.
Installing a PCI Express x 16 expansion card:
Please carefully pull out the small white-
drawable bar at the end of the PCI Express
x 16 slot when you try to install/uninstall the
VGA card. Please align the VGA card to the
onboard PCI Express x 16 slot and press
firmly down on the slot. Make sure your VGA
card is locked by the small white-drawable
bar.