Octek P4X266A-A4E User manual

1
Electronic Emission Notices
Federal Communications Commission (FCC) Statement (02852C)
This equipment has been tested and found to comply with the limits for a Class B digital
device,pursuanttoPart15ofFCCRules.Theselimitsaredesignedtoprovidereasonable
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 instructions contained in this manual, may cause harmful interference
to radio and television 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:
- REORIENTORRELOCATETHERECEIVINGANTENNA
- INCREASETHESEPARATIONBETWEENTHEEQUIPMENTANDTHERECEIVER
- CONNECTTHEEQUIPMENTINTOANOUTLETONACIRCUITDIFFERENTFROM
THATOFTHERECEIVER
- CONSULTTHEDEALERORANEXPERIENCEDAUDIO/TELEVISIONTECHNICIAN
NOTE: Connecting this device to peripheral devices that do not comply with Class B
requirements, or using an unshielded peripheral data cable, could also result in
harmful interference to radio or television reception.
The user is cautioned that any changes or modifications not expressly approved
by the party responsible for compliance could void the user’s authority to operate
this equipment.
To ensure that the use of this product does not contribute to interference, it is
necessary to use shielded I/O cables.
Copyright
This manual is copyrighted with all rights reserved. No portion of this manual may be
copied or reproduced by any means.
While every precaution has been taken in the preparation of this manual, no responsibility
for errors or omissions is assumed. Neither is any liability assumed for damages resulting
from the use of the information contained herein.
Trademarks
All brand names, logos and registered trademarks mentioned are property of their
respective owners.

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Technical Reference Booklet
Table of Contents
HARDWARE CONFIGURATION................................................................... 3
Key Features ............................................................................................................... 3
Motherboard Layout .................................................................................................... 5
Jumper Settings ........................................................................................................... 6
CPUSpeedSelection ............................................................................................ 6
J5 - On Board PCI Codec Sound .......................................................................... 6
J6 - On Board AC97 Codec Sound....................................................................... 6
JBAT1 - CMOSClear ............................................................................................. 6
SW2 - Host Clock Setting(For P4X266A,optional)................................................ 6
SW5 - VID[0:4] Code to Voltage Definition(Optional) ........................................... 7
Pin Assignment ..................................................................................................... 8
HARDWARE SETUP ..................................................................................... 10
ToInstall DDRDIMMs ................................................................................................... 10
Installing a New Processor ......................................................................................... 11
To Install a Processor to ZIF Socket ........................................................................... 11
Connect the Processor Fan Connector ...................................................................... 11
Setting the Processor Speed ...................................................................................... 11
BIOS SETUP ................................................................................................ 12
Starting Setup .............................................................................................................. 12
MainMenu.................................................................................................................... 13
Standard CMOS Features ........................................................................................... 14
Advanced BIOS Features ........................................................................................... 15
Advanced Chipset Features ....................................................................................... 15
Integrated Peripherals ................................................................................................. 15
Power Management Setup.......................................................................................... 15
PNP/PCIConfigurations................................................................................................ 16
PCHealthStatus.......................................................................................................... 16
Frequency/Voltage Control ......................................................................................... 16
Set Supervisor/User Password.................................................................................. 16
Flash Update Procedure.............................................................................................17
APPENDIX .................................................................................................. 18
AC97 Sound Driver Installation for Windows NT 4.0/2000/XP.............................. 18

3
HARDWARE CONFIGURATION
Key Features :
Chipset
• VIA P4X266/P4X266A chipset.
Processor
• Support Intel® Pentium® 4 processors and the Northwood processors in the
478-pin package.
• Support Intel® Pentium® 4 processors system bus at 400MHz/533MHz(only
for P4X266A).
VRM 9.0 (Voltage Regulator Modules) on Board
• Flexible motherboard design with on board VRM 9.0.
System Memory
•A total of three 168-pin DIMM sockets.
• Support up to 1.5G bytes.
• Support SDRAM memory types.
System BIOS
• PnP, APM, ATAPI and Windows® 95/98/2000.
• Full support of ACPI & DMI.
• Auto detects and supports LBA harddisks with capacities over 8.4GB.
• Easy to upgrade BIOS by end-user.
On-board I/O
•On board two PCI fast IDE ports supporting up to 4 ATA, ATA2 , Ultra ATA33/
66/100 IDE HDDs, CD-ROMs, ZIP drives and LS-120 drives as boot drive.
•OneECP/EPPparallelport.
•Two 16550 Compatible UART serial ports.
•One floppy port supports two FDD of 360KB, 720KB, 1.2MB , 1.44MB and
2.88MB capacity.
•Six USB ports .
•PS/2 keyboard connector.
•PS/2 mouse is supported.
•One Front Panel Sound Connector.
•Infrared (IrDA) is supported via a header.
Plug-and-Play
• Supports Plug and Play specification 1.1.
• Plug and Play for DOS, Windows® 3.X, Windows® 95/98 as well as
Windows® 2000.
• Fully steerable PCI interrupts.
On-board AC97 Sound (optional)
•Integrated AC97 controller with standard AC97 Codec.
• Direct Sound and Sound Blaster compatible.
•Full-Duplex 16-bit record and play back.
•PnP and APM 1.2 support.
•Win® 95/98/2000, NT drivers ready.
•Line-in, Line-out, Mic-in and MIDI/Game port.
Hardware Configuration

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Technical Reference Booklet
On-board Creative PCI Sound (optional)
•PnP, creative 3D enhancement.
•Full-duplex, Sound Blaster 16 compatible.
•128 voice wave table synthesizer.
•DOSgamecompatibility.
•PCI bus master for fast DMA.
•Fully compliant with AC97 power management specification.
•Win® 95, 98, NT drivers ready.
•Line-in, Line-out, Mic-in and MIDI/game port.
Note: This motherboard bundles a PCI sound function, so one slot cannot
support bus master feature. If you find that your PCI card with bus
master feature cannot work normally, please install the card on the
other slots to avoid the conflict with the PCI sound.
Power Management
• SupportsSMM,APMandACPI.
• Break switch for instant suspend/resume on system operations.
• Energy star “Green PC” compliant.
• Hardware monitoring circuit is supported, provide voltage, temperature, fan
speed, etc. monitoring (optional).
• WOL (Wake-On-Lan) header support.
• External Modem Ring-in Wake-up support.
• Supports suspend-to-RAM(STR) (optional).
Expansion Slots
• 1 CNR slot (shares 1 PCI slot)(only support CNR Audio).
• 1 AGP slot.
•5 PCI bus master slots - ver. 2.1 compliant (1 PCI shares with CNR slot).
CAUTION
Static electricity can harm delicate components of the motherboard. To prevent
damage caused by static electricity, discharge the static electricity from your
body before you touch any of the computers electronic components.

5
Hardware Configuration
Motherboard Layout
The following diagrams show the relative positions of the jumpers, connectors, major
components and memory banks on the motherboard.
NOTE 1) Be sure to check the cable orientation in order to match the colored strip to the pin
1 end of the connector.
2) When you start up the system, please wait for 5 seconds after you power on AC.
# If you are using standard ATX power supply (without P4 12V power
connector), you MUST connect a peripheral power plug (the plug
supplying power to HDD / CDROM) into J16. Thus you can use either
ATX 12V power supply or standard ATX power supply for this motherboard
(Noted : NOT all kinds of standard ATX power supply are guaranteed to be
applicable in this motherboard.).
J5
J6
1
USB2
1

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Technical Reference Booklet
Jumper Settings
This chapter explains how to configure the motherboard’s hardware. Before using your
computer, make sure all jumpers and DRAM modules are set correctly. Refer to this
chapter whenever in doubt.
CPU Speed Selection
In this motherboard, jumperless feature is implemented such that no jumper is required to
be set for different type of CPU installed.
Notice:
1. Be sure to save the CMOS setting when exit the CMOS.
2. The CPU is frequency multiplier locked, no CPU speed change will be seen
even if the frequency multiplier setting in CMOS setup is changed.
J5 - On Board PCI Codec Sound
J5 Function
2-3 PCISoundDisable
1-2* PCISoundEnable*
J6 - On Board AC97 Codec Sound
J6 Function
1-2 AC97 Sound Disable
2-3* AC97 Sound Enable*
# CNR Sound Card can only be used with On Board AC97 Codec Sound Disabled.
JBAT1 - CMOS Clear
JBAT1 Selection
1-2* Normal*
2-3 CMOSClear
1
JBAT1
J6
1J5
Close Open * = Default setting.
1 2 3 4 5 6
SW5
SW2
1 2
SW2 - Host Clock Setting(For P4X266A,optional)
SW2 Host CLK
100MHz*
133MHz
*
1 2
1 2
On Off * =Default setting.

7
Hardware Configuration
SW5 - VID[0:4] Code to Voltage Definition(Optional)
SW5[1:6] VCC_CORE SW5[1:6] VCC_CORE
VID[0:4] VID[0:4]
1.850 1.450
1.825 1.425
1.800 1.400
1.775 1.375
1.750 1.350
1.725 1.325
1.700 1.300
1.675 1.275
1.650 1.250
1.625 1.225
1.600 1.200
1.575 1.175
1.550 1.150
1.525 1.125
1.500 1.100
1.475 Defaulting CPU*
On Off * =Default setting.
SW5(1) Off, Auto Setting
SW5(1) On, Manual Setting
1 2 3 4 5 6
*
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6

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Technical Reference Booklet
CDS2 : CD-IN
Pin Assignment
1 CD-R
2 GND
3 CD-L
4 GND
USB Connector
Pin Assignment
1 VCC
2 GND
3 USBP1-
4 USBP0+
5 USBP1+
6 USBP0-
7 GND
8 VCC
J16
Pin Assignment
1 12V
2 GND
3 GND
4 VCC
R G L G G L G R
CDS3 : CD-IN
Pin Assignment
1 GND
2 CD-L
3 GND
4 CD-R
1
2
7
8
LINEOUTR
MICIN
GND BIAS
X
LINEOUTL
LINEINRLINEINL
10 9
21
GND
GND
J10
Front Panel
Sound Connector
1
1
CDS1 : CD-IN
Pin Assignment
1 CD-L
2 GND
3 GND
4 CD-R
Pin Assignment
Internal Audio Connector
AUX1 : AUX-IN
Pin Assignment
1 AUX-L
2 GND
3 GND
4 AUX-R

9
VCC
FP1
FRONTPANELHEADER
HEADER 2x12
GND 24
22
GND 20
18
16
14
12
IRTX 10
GND 8
IRRX 6
GND 4
SUS+ 2 SW -
PWR+
- SW
+SUS
LED -
PWR+
LED -
HDD+
SW -
RST+
+
-
NC
S
SPKER
IrDA
+
TX
-
RX
23
21 GND
19
17 SPEAK
15 GND
13 RST+
11 HDDLED-
9 HDDLED+
7 PWRLED-
5 PWRLED+
3 GND
1 PWR+
X
X
X
VCC
X
VCC

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Technical Reference Booklet
Checking the mounting post
of your computer
Please check your computer
chassis if it is carrying any metal
mounting post at this location.
Remove the mounting post or
add insulation to the post before
putting in the motherboard.
CAUTION
Clip
Clip
DIMM
DIMM Socket
Notch
Hardware Setup
To Install DIMMs
1. Locate the DIMM sockets.
2. Holding the DIMM by the edges, remove it from its antistatic package.
3. Make sure the clips at either end of the socket are pushed away from the socket.
4. Position the DIMM above the socket. Align the two small notches in the bottom
edge of the DIMM with the keys in the socket.
5. Insert the bottom edge of the DIMM into the socket.
6. When the DIMM is seated, push down on the top edge of the DIMM until the retaining
clips at the ends of the socket snap into place. Make sure the clips are firmly in
place.
Turn system power off before installing and removing any
device, otherwise you’ll cause the system damage.

11
Hardware Setup
Installing a New Processor
An upgrade processor can dramatically increase general system speed and performance.
Most microprocessor upgrade kits include the following items:
• Microprocessor chip
• Installation instructions and technical data
Before installing the processor, please refer to the installation notes that
available with the CPU package.
To Install a Processor to ZIF Socket
To install the processor, follow these steps:
1. If the system microprocessor is already on the motherboard socket, you need to
remove it from the motherboard socket. The socket is a Zero Insertion Force (ZIF)
socketwhichhasametalarmatone side. Carefully grasp this arm, move it horizontally
away from the socket and lift it up. Eventually you will be able to lift the chip straight
up out of the socket. Be careful not to bend any pins.
Be careful not to bend any of the pins when removing the microprocessor
chip from its socket. The microprocessor chip can be permanently damaged.
2. Unpack the new microprocessor chip.
3. Carefully align the processor with the correct orientation to the socket on the
motherboard.
4. Carefully insert the processor into the socket, and move the metal arm downward to
replace it in its original position.
Connect the Cooling Fan Connector
The CPU should always have a Heat Sink and cooling fan attached to prevent
overheating.
Please follow the setup to install the Heat Sink and cooling fan. Then connect the
processor fan cable to the fan connector that located on the motherboard near the
processor and ensure the fan can operate. Otherwise the CPU can overheat and cause
damage to both CPU and motherboard.
Setting the Processor Speed
After you install the processor into the motherboard, set the processor speed by CMOS
setup.

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Technical Reference Booklet
BIOS Setup
This chapter discusses Award’s Setup Program built into the ROM BIOS. The Setup
Program allows users to modify the basic system configuration. This special information
is then stored in battery-backed RAM, which retains the setup information when the
power is turned off.
Starting Setup
The Award BIOS is immediately activated when you turn on the computer. The BIOS
reads the system information contained in the CMOS and begins the process of checking
out the system and configuring it. When it finishes, the BIOS will seek an operating
system on one of the disks and then launch and turn control over to the operating
system.
While the BIOS is in control, the Setup Program can be activated :
1. By pressing <Del> immediately after switching the system on, or
2. By pressing the <Del> key when the following message appears briefly at
the bottom of the screen during the POST (Power On Self Test )
Press DEL to enter SETUP
If the message disappears before you can respond and you still wish to enter Setup,
restart the system to try again by turning it OFF then ON or pressing the “RESET” button
on the system case. You may also restart by simultaneously pressing the <Ctrl>, <Alt>,
and <Delete> keys. If you do not press the keys at the correct time and the system does
not reset, an error message will be displayed and you will again be asked to ...
PRESS F1 TO CONTINUE, DEL TO ENTER SETUP
Getting Help
Press F1 to pop up a small help window that describes the appropriate keys to use and
the possible selections for the highlighted item. To exit the Help Window press <Esc> or
the F1 key again.
In Case of Problems
If, after making and saving system changes with the Setup Program, you discover that
your computer does not reset, use the Award BIOS defaults to override the CMOS
settings.

13
BIOSSetup
Main Menu
Once you enter the Award BIOS CMOS Setup Utility, the Main Menu will appear on the
screen. The Main Menu allows you to select from various setup functions and two exit
choices. Use the arrow keys to select among the items and press <Enter> to accept and
enter the sub-menu.
CMOS Setup Utility - Copyright (C) 1984-2001 Award Software
8Standard CMOS Features 8Frequency/Voltage Control
8Advanced BIOS Features Load Fail-Safe Defaults
8Advanced Chipset Features Load Optimized Defaults
8Integrated Peripherals Set Supervisor Password
8Power Management Setup Set User Password
8PnP/PCIConfigurations Save & Exit Setup
8PCHealthStatus Exit Without Saving
Esc : Quit éêèç : Select Item
F10 : Save & Exit Setup
Time, Date, Hard Disk Type ... ...
(Note : The figures of BIOS Setup Menu included here only show a typical
case, and may not be exactly the same as the one on your unit.)
Note that a brief description of each highlighted item will appear at the bottom of the
screen.
Standard This setup page includes all the items of Award™ special standard
CMOS Features features.
Advanced BIOS This setup page includes all the items of Award™ special enhanced
Features features.
Advanced This setup page includes all the items of chipset special features.
Chipset Features
Integrated This section page includes all the items of IDE hard drive and
Peripherals Programmed Input / Output features.
Power This entry only appears if your system supports Power
Management Management “Green PC” standards.
Setup
PnP/PCI This entry appears if your system supports PNP/PCI.
Configurations
PC Health Status Display CPU and Case Fan Speed.
Frequency/ CPU speed setting are settings of CPU speed. You should refer to
Voltage Control yourCPUmarking.
Load Fail-Safe The BIOS defaults have been set by the manufacturer and represent
Defaults settings which provide the minimum requirements for your system
to operate.

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Technical Reference Booklet
Load Optimized The chipset defaults are settings which provide for maximum
Defaults system performance. While Award has designed the
custom BIOS to maximize performance, the manufacturer
has the right to change these defaults to meet its needs.
Set Supervisor/ Changes, sets, or disables password. It allows you to limit
User Password access to the system and the Setup Program.
Save & Exit Saves value changes to CMOS and exits setup.
Setup
Exit Without Abandons all CMOS value changes and exits setup.
Saving
Standard CMOS Features
The items in Standard CMOS Setup Menu are divided into 10 categories. Each category
includes one or more setup items. Use the arrow keys to highlight the item and then use
the <PgUp> or <PgDn> key to select the desired value in each item.
CMOS Setup Utility - Copyright (C) 1984-2001 Award Software
Standard CMOS Features
Date (mm :dd:yy) Mon. May 21 2001 Item Help
Time (hh :mm:ss) 11 : 1 : 35
Menu Level 8
8IDE Primary Master [Press Enter 4303 MB]
8IDE Primary Slave [None] Change the day, month,
8IDE Secondary Master [None] year and century
8IDE Secondary Slave [None]
Drive A [1.44M, 3.5 in.]
Drive B [None]
Video [EGA/VGA]
Halt on [All Errors]
Base Memory 640K
Extended Memory 30720K
Total Memory 31744K
éêèç : Move Enter : Select +/-/PU/PD : Value F10 : Save ESC : Exit F1 : General Help
F5 : Previous Values F6 : Fail-Safe Defaults F7 : Optimized Defaults
(Note : The figures of BIOS Setup Menu included here only show a typical
case, and may not be exactly the same as the one on your unit.)
Date The date format is <day-of-the-week>. <month> <day> <year>.
Time The time format is <hour> <Minute> <second> displayed in
24-hour military-time clock. For example, 1 p. m. is displayed
as 13:00:00.

15
BIOSSetup
IDE Primary These categories identify the types of the two channels that
Master/Slave have been installed in the computer.
IDE Secondary
Master/Slave If the controller of the HDD interface is SCSI, the selection shall
be “None”.
Drive A / This category identifies the types of floppy disk drive A or drive
Drive B B that has been installed in the computer.
Video The default setting is EGA/VGA.
Halt on You can select which type of error will cause the system to halt.
Advanced BIOS Features
This section allows you to configure your system for basic operation. You have the
opportunity to select the boot-up sequence, keyboard operation, shadowing and security.
Advanced Chipset Features
This section allows you to configure DRAM clock, DRAM timing, AGP mode etc.
Integrated Peripherals
The Integrated Peripherals Setup allows the user to configure the onboard IO, IRQ, DMA
assignment etc.
Power Management Setup
The Power Management Setup Menu allows you to configure your system to most save
energy while operating in a manner consistent with your own style of computer use.

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Technical Reference Booklet
PnP/PCI Configurations
This section describes how to configure the PCI bus system. This section covers some
very technical items and it is recommended that only experienced users should make
any changes to the default settings.
PC Health Status
The PC Health Status display CPU and Case Fan Speed.
Frequency/Voltage Control
This section allows you to set CPU Speed.
Set Supervisor/User Password
You can set either supervisor or user password, or both of them. The difference
between them are:
SupervisorPassword : You can enter the Setup Program and change
the options of the setup menus.
User Password : You can enter the Setup Program but can not
change the options of the setup menus.
When you select this function, the following message will appear at the center of the
screen to assist you in creating a password.
ENTER PASSWORD:
Type the password, up to eight characters in length, and press<Enter>. The new password
will clear the previously entered password from the CMOS memory. You will be asked to
confirm the password. Type the password again and press <Enter>. You may also
press <Esc> to abort the selection and operate without a password.
To disable a password, just press <Enter> when you are prompted to enter the password.
A message will be displayed to confirm that the password is disabled.
PASSWORD DISABLED.
Once the password is disabled, the system will reset and you can enter the Setup
Program freely.
When a password is enabled, you will be prompted to enter it every time you try to enter
setup. This prevents an unauthorized person from changing any setting of your system
configuration.
In addition, when a password is enabled, you can require the BIOS to request a password
every time your system is rebooted. This would further prevent unauthorized use of
your computer.
The password requirement is defined by the Security Option of the BIOS Features Setup
Menu. If the Security Option is set to “System”, the password will be required both at
resetting and at entering setup. If the option is set to “Setup”, the prompt only appears
when you try to enter setup.

17
Flash Update Procedure
A program AWDFLASH.EXE is included in the utility diskette or CD (X:\Utility\
AWDFLASH.EXE). The user is recommended to follow the procedure below to update
the flash BIOS.
(X: your CD driver letter).
1. Create a DOS-bootable floppy diskette. Copy the new BIOS file (just obtained or
downloaded) and the utility program AWDFLASH.EXE to the diskette.
2. Allow the PC system to boot from the DOS diskette.
3. At the DOS prompt, key in
AWDFLASH
and hit <ENTER>
4. Enter the file name of the new BIOS.
5. The question: “Do you want to save BIOS (Y/N)” is displayed.
Key in “N” if there is no need to save the existing BIOS content..
Key in “Y” if a backup copy of the existing BIOS is needed.
(A file name has to be assigned to the existing BIOS binary file.)
6. The question : “Are you sure to program (Y/N)” is displayed.
Key in “Y”
7. Wait until the flash-update is completed.
8. Power down the PC system.
9. Restart the PC.
Warning:
DO not turn off or RESET the computer during the flash process.
If you are unsure how to upgrade the BIOS, it is best to take your
computer to an Authorized Service Center and have a trained
technician do the work for you.

18
Technical Reference Booklet APPENDIX
APPENDIX
AC97 Sound Driver Installation for Windows NT 4.0/2000/XP
Please follow the step to install AC97 Sound Driver for Windows
NT4.0/2000/XP.
(Note : This manual assumes that your CD-ROM device drive letter is D:.)
D:\VIA Chipset\AC97_8233\

19

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Technical Reference Booklet
02852C