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 2.1
May 27, 2004
User’User’
User’User’
User’ss
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ManualManual
ManualManual
Manual
6000002P4MK21
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
System Block Diagram ............................................... 1-2
Section 2 Features
Mainboard Features ................................................... 2-1
Section 3 Installation
Mainboard Layout ..................................................... 3-2
Easy Installation Procedure
Jumper Settings .......................................................... 3-3
System Memory Configuration .................................. 3-4
Device Connectors..................................................... 3-5
External Modem Ring-in Power ON and
Keyboard Power ON Function (KBPO) ..................... 3-10
Section 4 BIOS Setup
Main Menu ................................................................ 4-1
Standard CMOS Setup ............................................... 4-2
Advanced BIOS Features .......................................... 4-3
Advanced Chipset Features ...................................... 4-6
Integrated Peripherals ................................................ 4-11
Power Management Setup ......................................... 4-16
PNP/PCI Configuration Setup .................................... 4-19
PC Health Status ........................................................ 4-21
Power BIOS Features ................................................. 4-22
Defaults Menu ........................................................... 4-24
Supervisor/User Password Setting ............................ 4-25
Exit Selecting .............................................................. 4-26
Page

Section 5 Driver Installation
Easy Driver Installation .............................................. 5-1
Appendix Appendix A
Update Your System BIOS ......................................... A-1
Page

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

Introduction
Page 1-2
Figure 2: System Block Diagram
System Block Diagram

Features
Page 2-1
Section 2
FEATURES
Mainboard Features
Processor
Socket 478 Intel®Pentium®4 processor with 533MHz front side bus up to
3.0+GHz
Socket 478 Intel®Celeron processor with 400MHz front side 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 (Optional)
- 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

Features
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
Audio
Six channel audio with analog and digital output
- 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
Four USB2.0 ports
Three Audio jacks
)Onboard connector and pin-header
One floppy drive connector
Two IDE connectors
Two extra USB2.0 ports
One CD-IN connector

Features
Page 2-3
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
Form Factor
210mm x 245 mm Micro ATX size

Features
Page 2-4

Installation
Page 3-1
Section 3
INSTALLATION

Installation
Page 3-2
Mainboard Layout

Installation
Page 3-3
3-1 Jumper Settings
JCMOS:
Settings:
1-2: Normal (Default)
2-3: Clear CMOS
1
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 3-4
NOTES:
•Using non-compliant memory with higher bus speeds
(overclocking) may severely compromise the integrity of the
system.
<Figure 1>
<Table 1>
3-2 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 1 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

Installation
Page 3-5
JCPU_FAN / JSYS_FAN:
CPU/Chassis Fan Power Connectors
JCPU_FAN: The CPU must be kept cool by using a
heatsink with fan assembly.
JSYS_FAN: The chassis fan will provide adequate
airflow throughout the chassis to prevent overheat-
ing the CPU.
JCPU_FAN
Figure 2 - I/O Ports
3-3 Connectors
JCPU_FAN
Ground
+12V
Sence
JSYS_FAN
JSYS_FAN
1
2
GAME1: Game/MIDI connector
This port works well with any application that is
compatible with the standard PC joystick.
Ground
+12V
Sence
COM1
Parallel Port
VGA1
RJ-45 LAN
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)

Installation
Page 3-6
PW1
PW12
PW1: 20-pin ATX Power Connector
PW12: 4-pin ATX12V Power Connector
The mainboard is equipped with a standard 20-pin
ATX main power connector and a 4-pin +12V
power connector for connecting an ATX12V
power supply. The plugs of the power cables are
designed to fit in only one orientation. Find the
proper orientation then insert the plugs into the
connectors until they fit in place.
Caution:
The PW1 and PW12 Power Connector must be used simultaneously
or else this system will not boot-up.
40 39
21
IDE1/IDE2
34 33
21
FDD


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
greater power supply.
1
3
1
-12V3.3V
Ground+5V
PS-ON+5V
-5VPW-OK
+5V5VSB
+5V+12V
+12V+12V
10
11
4
2
3.3V3.3V
GroundGround
GroundGround
GroundGround
GroundGround
20
PW1
PW12
IDE1
IDE2
FDD
FDD:Floppy Controller Connector
This mainboard is equipped with a floppy disk drive
connector for connecting up to 2 floppy disk drives.
IDE1/IDE2: Ultra DMA-66/100/133 Primary/Secondary
IDE Connector
This mainboard is equipped with 2 IDE disk connec-
tors for connecting up to 4 ATA-133 IDE drives.
It supports PIO and DMA mode operations for
maximum data transfer rate of 133MB/sec per channel.


When use two IDE drives, one must be set to Master
mode and the other one to Slave mode. Refer to your
disk drive user’s manual for information about select-
ing the proper drive switch settings.

Installation
Page 3-7
Settings
Pins (5-6) & (9-10) Short (default): Only the onboard rear
panel audio jack can be used.
Pins (5-6) & (9-10) Open: Only front panel audio jack can
be used.
CFPA: Front Panel Audio Connector
When the jumpers are removed this connector
can be used for front panel audio.
The front panel line-out phone jack should
have a “normal close” switch . Without a
phone- plug inserted, the rear panel audio is
enabled. With phone plug inserted, the rear
panel audio will be disabled.


In 2-Channel audio mode, Mic-In is shared for both front panel and rear panel.
In 6-Channel audio mode, the Mic-In is dedicated for front panel use, and rear
panel Mic-In function will switch to Center and Subwoofer support.
1
Rear Line-out-FR
Front Line-out-R
Rear Line-out-FL
Front Line-out-L
MIC_In
NC +5V
Key
9
2
10
GND
CD-IN: CD Audio_IN Connector
The CD-IN connector is for receiving audio form a
CD-ROM drive, TV tuner or MPEG card.
CD_IN_Left
1
CD_IN_Right
CD_Reference
CD-IN

Installation
Page 3-8
S/PDIF: Sony/Philips Digital InterFace connector
This connector links digital audio between the
mainboard and your audio devices, such as CD
player, sampler or DAT recorder. It allows the
digital transmission of audio data in S/PDIF format.
1
5
2
6
VCC
NC
GND
SPDIF_IN
SPDIF_OUT
CUSB3: Two USB 2.0 ports
This mainboard includes 2 additional onboard USB
ports, identified by two 10-pin connector.
If you wish to use the additional USB ports, install
the card-edge bracket to the system chassis then
insert its cables to this 10-pin connector.
USB2.0 allows data transfer speed up to 480Mbps.
CUSB3
CAUTION !
Please make sure the USB cable has the same
pin assignment. A different pin assignment
may cause damage to the system.
If you need the USB cable, please contact our
retailer.

Installation
Page 3-9
CFP / CIR / CSPK
CFP: Front Panel Connector


HD_LED
This LED will light up whenever the hard drive
is being accessed.


PWR_LED
This connects to the power button of the
system chassis


RST
This switch allows you to reboot without
having to power off the system thus prolonging
the life of the power supply or system.


PW_ON
This is connected to the power button on the
case. Using the Soft-Off by Pwr-BTTN feature,
you can choose either Instant Off (turn off
system immediately) or 4 sec delay (push the
button for 4 seconds to turn off the system).
When the system is in 4 sec delay mode,
suspend mode is enabled by pushing the
button momentarily.
CIR: IR connector
Connect your IrDA cable to this IR connector.
1.VCC 4.GND
2. NC 5. IRTX
3.IRRX
CSPK: Speaker
Connect to the system’s speaker for beeping
1.VCC 3.GND
2. NC 4. Speaker

Installation
Page 3-10
NOTES:
• Intel ATX version 2.0 specification recommends a power supply that
supplies >=2.0 A in 5.0 VSB. However, this mainboard supports a 5.0
VSB standby power supply > = 2A .
• We recommend you use the power supply with 2.0 A in 5.0 VSB, which
supports PCI 2.3 specification for remote power-on and wake-up
functions.
3-4 External Modem Ring-in Power ON and
Keyboard Power ON Functions (KBPO)
Modem-Ring Power ON Function
The I/O chipset provides the two serial ports with the External Modem Ring-in Power
ON function. Once you connect an external modem to COM1 or COM2, the
mainboard enables you to turn on the system through remote and host dial-up
control.
Keyboard Power ON Function
The mainboard features a keyboard power on function that enables you to turn on
the power supply using a keypress. Follow these instructions to enable the Key-
board Power ON function .
Step : Use the Keyboard Power ON function (KBPO) to turn on the system by using
a key press, password, or hot key combination etc. as set in the BIOS Power
Management Setup menu (refer to the BIOS Power Management Setup for
details). The BIOS default setting is keyboard Hot key (<Ctrl> + <F1>). To power
off the system, use the Soft-OFF function under Windows XP/ME/2000/98.
(refer to Windows online help).