VIA Technologies P4M266A User manual

TRADEMARK
All products and company names are trademarks or registered
trademarks of their respective holders.
These specifications are subject to change without notice.
Manual Revision 1.0
July 30, 2003
User’User’
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6000002P4MK10
VIAVIA
VIAVIA
VIA P4M266AP4M266A
P4M266AP4M266A
P4M266A mainboardmainboard
mainboardmainboard
mainboard
for Intel Socket 478 processorfor Intel Socket 478 processor
for Intel Socket 478 processorfor Intel Socket 478 processor
for Intel Socket 478 processor

DISCLAIMER OF WARRANTIES:
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE
DESCRIPTION ON THE FACE OF THE MANUFACTURER LIMITED
WARRANTY. THE MANUFACTURER EXPRESSLY EXCLUDES ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING ITS
PRODUCTS; INCLUDING ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
NONINFRINGEMENT. THIS DISCLAIMER OF WARRANTIES SHALL
APPLY TO THE EXTENT ALLOWED UNDER LOCAL LAWS IN THE
COUNTRY PURCHASED IN WHICH LOCAL LAWS DO NOT ALLOW
OR LIMIT THE EXCLUSION OF THE IMPLIED WARRANTIES.

Table of Contents
Section 1 Introduction
Package Contents ...................................................... 1-1
Intel Pentium 4 Processors......................................... 1-2
Accelerated Graphics Port ......................................... 1-2
ltra ATA66/100/133 .................................................. 1-2
Hardware Monitoring ................................................. 1-3
LAN (Optional) .......................................................... 1-3
Mainboard Form-Factor ............................................. 1-4
I/O Shield Connector.................................................. 1-5
Power-On/Off (Remote).............................................. 1-5
System Block Diagram ............................................... 1-6
Section 2 Features
Mainboard Features ................................................... 2-1
Section 3 Installation
Mainboard Layout ..................................................... 3-2
Easy Installation Procedure
CP Installation ......................................................... 3-3
Jumper Settings.......................................................... 3-5
System Memory Configuration .................................. 3-6
Expansion slots .......................................................... 3-8
Device Connectors..................................................... 3-10
External Modem Ring-in Power ON and
Keyboard Power ON Function (KBPO) ..................... 3-15
STR (Suspend To RAM) Function .......................... 3-16
Supports AGP Card 3.3V Protection .......................... 3-17
Page

Section 4 Award BIOS Setup
Main Menu ................................................................ 4-1
Standard CMOS Setup ............................................... 4-2
Advanced BIOS Features .......................................... 4-3
Advanced Chipset Features ...................................... 4-7
Integrated Peripherals ................................................ 4-12
Power Management Setup ......................................... 4-17
PNP/PCI Configuration Setup.................................... 4-21
PC Health Status ........................................................ 4-23
Power BIOS Features ................................................. 4-24
Defaults Menu ........................................................... 4-26
Supervisor/ ser Password Setting ............................ 4-27
Exit Selecting .............................................................. 4-28
Section 5 Driver Installation
Easy Driver Installation.............................................. 5-1
C-Media Audio Configuration Brief Guide ................ 5-2
Appendix Appendix A
pdate Your System BIOS ......................................... A-1
Appendix B
EEPROM BIOS Remover ........................................... B-1
Appendix C
GHOST 7 Quick sers Guide (Optional) ................... C-1
Page

Introduction
Page 1-1
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USERS
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Section 1
INTRODUCTION
Package Contents
Contents
A. Mainboard
B. Users manual
C. Floppy drive cable
D. HDD drive cable
E. CD or diskette (drivers and
utilities
F. Game port cable
G. I/O Shield
Optional Items
H. Extra USB2.0 port cable
I. S/PDIF Module
If you need the other optional item,
please contact your dealer for
assistance.

Introduction
Page 1-2
Intel®Pentium®4 processors
The Intel Pentium 4 processor, Intel's most advanced, most powerful processor for
desktop PCs and entry-level workstations, is based on Intel NetBurstTM
microarchitecture. The Pentium 4 processor is designed to deliver performance
across applications and usages where end-users can truly appreciate and experience
the performance. These applications include Internet audio and streaming video,
image processing, video content creation, speech, 3D, CAD, games, multimedia, and
multi-tasking user environments. The Pentium 4 processor delivers this world-class
performance for consumer enthusiasts and business professional desktop PC users
as well as for entry-level workstation users.
Intel adds support for Hyper-Threading Technology to the Pentium 4 processor
family. HT Technology allows a single, physical Pentium 4 processor to function as
two logical processor for next generation multi threaded application.
For more information about all the new features Pentium 4 deliver, check out the
Intel website at http://www.intel.com
Accelerated Graphics Port (AGP)
The AGP slot on the board is compliant with the new AGP 2.0 specification. This
new specification enhances the functionality of the original AGP specification by
allowing 4X data transfers ( 4 data samples per clock resulting in maximum band-
width of 1GB/s. In addition, it defines 1.5 volt power supply operation. Complying
with this specification, this board supports external AGP-4X cards with Fast Write
Transactions. Only 1.5V AGP cards are supported.
Ultra ATA/66/100/133
This mainboard provides two independent ATA133 IDE controllers, supporting
standard programmable input/output (PIO and Direct Memory Access (DMA
mode operations, as well as UltraDMA-133/100/66/33 standards for a maximum data
transfer rate of 133MB/sec per channel.

Introduction
Page 1-3
Hardware Monitoring
Hardware monitoring enables you to monitor various aspects of the system operation
and status. The features include CPU temperature, voltage and fan speed in RPMs.
LAN (Optional)
This mainboard is optionally mounted with a LAN chipset. It allows the mainboard to
connect to a local area network by means of a network hub.

Introduction
Page 1-4
Mainboard Form-Factor
This board is designed with ATX form factor - the latest industry standard for
chassis design. The ATX form factor is essentially a Baby-AT baseboard rotated
90 degrees within the chassis enclosure and a new mounting configuration for
the power supply. With these changes the processor is relocated away from the
expansion slots, allowing them all to hold full length add-in cards. ATX defines a
double height aperture to the rear of the chassis which can be used to host a
wide range of onboard I/O. Only the size and position of this aperture is defined,
allowing PC manufacturers to add new I/O features (e.g.; TV input, TV output,
joystick, modem, LAN, audio, etc. to systems. This will help systems integrators
differentiate their products in the marketplace, and better meet your needs.
 By integrating more I/O down onto the board and better positioning the hard
drive and floppy connectors material cost of cables and add-in cards is
reduced.
 By reducing the number of cables and components in the system, manufac-
turing time and inventory holding costs are reduced and reliability will
increase.
 By using an optimized power supply, it's possible to reduce cooling costs
and lower acoustical noise. An ATX power supply, which has a side-
mounted fan, allows direct cooling of the processor and add-in cards making
a secondary fan or active heatsink unnecessary in most system applications.
PCI slots
Expandable I/O
Figure 2: Summary of ATX chassis features
CPU socket
Single chassis
fan for system
AT X
Power
Supply
ATX power connector
IDE connectors
AGP slot
3 1/2-inch
Bay
5 1/4-inch
Bay
ATX 12V power
connector
Floppy
connector

Introduction
Page 1-5
Power-On/Off (Remote)
This board has a 20-pin ATX and a 4-pin ATX12V power supply connector (Figure
4 . For power supplies that support the Remote On/Off feature, this should be
connected to the mainboard front panel PW_ON connector for the computer power
On/Off button.
The board has been designed with Soft Off" function. You can turn off the system
in two ways: by pressing the front panel power On/Off button or using the "Soft
Off" function (incorporated in the mainboards onboard circuit controller that can
be controlled by an operating system such as Windows®XP/ME/2000/98.
Note: For maintaining the DDR SDRAM power during STR (ACP S3) function, it is
strongly recommended to use power supplies that have a +5VSB current of (>
=) 2A. Please check the 5VSBs specification that has been printed on the
power supplys outer case.
Note: The board requires a minimum of 250 Watt power supply to operate. Your
system configuration (amount of memory, add-in cards, peripherals, etc.) may
exceed this minimum power requirement. To ensure that adequate power is
provided, use a 300 Watt (or higher) power supply.
I/O Shield Connector
The board is equipped with an I/O back panel (Figure 3 . Ensure that your computer
case has the appropriate I/O cutout.
Figure 3: I/O ports
PW-ON
Case (chassis) Po er ON/OFF button (PW-ON)
POWER SUPPLY
12V 4-pin
20-pin
Figure 4: Simple ATX po er ON/OFF controller
COM1
Parallel Port
VGA1
RJ-45 LAN
(Optional)
USB2 0
ports
USB2 0
ports
PS/2
Mouse
PS/2
Keyboard Mic-in/Center&Subwoofer (Pink)
Line-out/Front out (Lime)
Line-in/Rear out (Light blue)

Introduction
Page 1-6
Figure 5: System Block Diagram
System Block Diagram

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Page 2-1
Section 2
FEATURES
Mainboard Features
Processor
Socket 478 Intel® Pentium® 4 processor with 533MHz front size bus up to
3.0 GHz
Socket 478 Intel®Celeron processor with 400MHz front size bus up to 2.4 GHz
Chipset
VIA P4M266A AGPset : VIA P4M266A VT8235
- Built-in VIA ProSavage 8 Graphics core
Main Memory
Two 184-pin DDR DIMM sockets for 64-bit, Unbuffered, Single/Double-
side and Non-ECC DDR-200/266 DIMMs
Supports up to 2GB memory size
BIOS
Flash EEPROM with Award BIOS
- ACPI v2.0 compliant
- S3 (Suspend to DRAM) sleep-state support
- SMBIOS (System Management BIOS) v2.2 compliant
- Supports Power failure recovery
- Able to wake the computer from specific states by Power switch, RTC alarm,
USB, PS2 KB&Mouse, Modem ring on COM#1
Onboard PCI Devices
LAN --> Embedded 10/100Mbps Fast Ethernet controller with onboard
VIA 6103 PHY
(Optional)

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Page 2-2
IDE --> Embedded IDE controller with 2 ordinary IDE ports up to 4 IDE
devices, supports ATA-133 with up to 133MB/sec bandwidth
Legacy IO Controller
ITE 8705 LPC IO controller for floppy, printer, serial, game and CIR/SIR
interface
udio
Six channel audio with analog and digital output using C-Media 9739A
AC97 CODEC
- AC97 v2.3 compliant
- In 2-CH mode, supports Line-In (Light blue), Line-Out (Lime) and Mic-In
(Pink) at rear panel
- In 6-CH mode, supports Rear speaker out (Light blue), Front speaker out
(Lime) and Center&Subwoofer speaker out (Pink) at rear panel
- Supports CD-In and S/PDIF-in/out interface
- Supports Line-out and Mic-In for front panel
Peripheral Interfaces
)At Rear Panel
PS/2 keyboard and mouse ports
One Parallel (printer) port
One Serial port
One VGA port
One RJ45 LAN connector (Optional)
Four USB2.0 ports
Three Audio jacks
)Onboard connector and pin-header
One floppy drive connector
Two IDE connectors
Two extra USB2.0 ports

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Page 2-3
One CD-IN connector
One S/PDIF in/out connector
One IR connector
One Front Panel Audio connector
One Game port connector
Two Fan connectors
Front Panel Controller
Supports Reset & Soft-Off switches
Supports HDD & Power LEDs
Supports PC speaker
Expansion Slots
One AGP slot supporting 1.5v 4X AGP cards
- AGP v2.0 compliant
Three PCI slots with Bus Master support
- PCI v2.2 compliant
Other Features
Magic Health  a BIOS H/W monitoring utility for voltage, temperature and
fan-speed sensing displayed during POST
EZ Boot  A simple shortcut to select the boot device, e.g. hard drive, CD-
ROM or floppy without entering CMOS setup
Supports exclusive KBPO (Keyboard Power On) function
Excellent Over clocking capabilities through
- subtle frequency tuning on FSB
- supports complete Asynchronous FSB/Memory for overclocking
Supports AGP card 3.3V Protection
Form Factor
210mm x 245 mm ATX size

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Page Left Blank

Installation
Page 3-1
Section 3
INSTALLATION

Installation
Page 3-2
Mainboard Layout

Installation
Page 3-3
Easy Installation Procedure
The following must be completed before powering on your new system:
3-1. CPU Installation
3-2. Jumper Settings
3-3. System Memory Configuration
3-4. Expansion Slots
3- . Device Connectors
3-1 CPU Installation
Step 1
Open the socket by raising the actuation
lever.
Figure 1
Step 2
Align pin 1 on the CP with pin 1 on
the CP socket as shown in the
illustration above. The CP is keyed to
prevent incorrect insertion. Dont force
the processor into the socket. If it does
not go in easily, check for mis-orienta-
tion and reinsert the CP .
Make sure the processor is fully
inserted into the socket.
Figure 2
Pin 1

Installation
Page 3-4
Figure 3
Step 4
Apply thermal compound to the top of
the CP and install the heatsink as
shown.
Step
Install the cooling fan assembly. Press
the two clips in the direction of the
arrows shown in Figure 5 to secure the
assembly to the CP socket.
Step 6
Plug the CP fan into the CP fan
connector.
The installation is complete.
Figure 4
Figure 5 Figure 6
NOTES:
 Damage to Intel PentiumTM 4 processors might result if installed with
incorrect CP fan and heatsink assemblies. se Intels design thermal
solution shown in the illustrations above: an active heatsink; an extruded
aluminum heatsink base; and a fan attached to the top of the fin array.
 Apply heatsink thermal compound or paste to the CP to avoid CP
overheating and damage.
 In accordance with Intel Corp. specifications, do not install a CP over
50 times to avoid bending the pins and damaging the CP .
Step 3
Close the socket by lowering and
locking the actuation lever.

Installation
Page 3-5
3-2 Jumper Settings
JCMOS:
Settings:
1-2: Normal(Default)
2-3: ClearCMOS

Clear CMOS data Jumper
If the CMOS data becomes corrupted or you
forgot the supervisor or user password,
clear the CMOS data to reconfigure the
system back to the default values stored in
the ROM BIOS.
To CMOS Clear data, please follow the steps below.
1. Turn off the system.
2. Change the jumper from 1-2 to 2-3 position
for a few seconds.
3. Replace the jumper on to the 1-2 position.
4. Turn on the system and hold down the <Del>
key to enter BIOS setup.

Installation
Page 3-6
NOTES:
_sing non-compliant memory with higher bus speeds
(overclocking) may severely compromise the integrity of the
system.
<Figure 6>
<Table 1>
3-3 System Memory Configuration
Memory Layout
The mainboard accommodates two PC1600/PC2100 184-pin DIMMs (Dual In-line
Memory Modules):
 Supports up to 2.0GB of 200/266MHz DDR SDRAM
 Supports unbuffered and non-ECC DIMMs
 Supports configurations defined in the JEDEC DDR DIMM specification
Figure 6 and Table 1 show two possible memory configurations.
DDR DIMM 1
DDR DIMM 2
yromeMlatoT 1MMIDRDD 2MMIDRDD
BG1=
mumixaM
*MARDSRDD
,BM215,BM652,BM821,BM46
1X*BG1
enoN
BG2=
mumixaM
*MARDSRDD
,BM215,BM652,BM821,BM46
1X*BG1
*MARDSRDD
,BM215,BM652,BM821,BM46
1X*BG1