VIA Technologies P4XB-MA User Manual

i

V ersion 1.0

December 5, 2001

VIA Mainboard

User’s Manual

VIA P4XB-MA

Harnessing the Power of DDR266 SDRAM

for the Intel® Pentium® 4 Processor

ii

Copyright

Copyright by VIA T echnologies Inc. (“VIA”). No part of this manual may
be reproduced or transmitted in any form without express written
authorization from VIA.

Trademarks

All trademarks are the property of their respective holders.

Data protection

All data should be backed-up prior to the installation of any drive unit or
storage peripheral. VIA will not be responsible for any loss of data resulting
from the use, disuse or misuse of this or any other VIA product.

No W arranty

VIA has made every effort to ensure the accuracy of the content of this
manual. However, it is possible that it may contain technical inaccuracies
or typographical or other errors. VIA will assume no liability for any
inaccuracy found in this publication, nor for damages, direct, indirect,
incidental, consequential or otherwise, that may result from such an
inaccuracy, including without limitation loss of data or profits.

VIA provides this manual “as is”, and does not issue a warranty of any
kind, express or implied, including without limitation implied warranties of
merchantability or fitness for a particular purpose.

The information provided in this manual is subject to change without
notice. VIA reserves the right to alter product designs, layouts or drivers
without notification.

iii

FCC-B Radio Frequency Interference Statement

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 when the equip­ment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accor­dance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference, in which case the user will be required to correct
the interference at his own expense.

Notice 1

The changes or modifications not expressly approved by the party respon­sible for compliance could void the user’s authority to operate the equipment.

Notice 2

Shielded interface cables and A.C. power cord, if any, must be used in order to
comply with the emission limits.

VOIR LA NOTICE D’INSTALLATION AVANT DE RACCORDER AU
RESEAU.

VIA P4XB-M

T ested to comply
with FCC Standard

For Home or Office Use

iv

Copyright Notice

We take every care in the preparation of this document, but no guarantee is
given as to the correctness of its contents. Our products are under continual
improvement and we reserve the right to make changes without notice.

Trademarks

All trademarks used in this manual are the property of their respective owners.

Intel and Pentium are registered trademarks of Intel Corporation.
PS/2 and OS/2 are registered trademarks of IBM Corporation.
Windows 95/98/2000 and W indows NT are registered trademarks of Microsoft.
Netware is a registered trademark of Novell.
Award is a registered trademark of Award Software Inc.

v

NOTE

1. Always read the safety instructions carefully.
2 . Keep this User’s Manual for future reference.
3 . Keep this equipment away from humidity.
4 . Lay this equipment on a reliable flat surface before setting it up.

5. The openings on the enclosure are for air convection hence protects the
equipment from overheating. DO NOT COVER THE OPENINGS.

6 . Make sure the voltage of the power source and adjust properly 110/220V

before connecting the equipment to the power inlet.

7. Place the power cord in such a way that people cannot step on it. Do not
place anything over the power cord.

8 . Always unplug the power cord before inserting any add-on card or module.

9. All cautions and warnings on the equipment should be noted.

1 0. Never pour any liquid into the opening. Liquid can cause damage or elec-

trical shock.

11. If any of the following situations arises, get the equipment checked by a
service personnel:

The power cord or plug is damaged
Liquid has penetrated into the equipment

The equipment has been exposed to moisture
The equipment has not work well or you can not get it work according
to User’s Manual.
The equipment has dropped and damaged
If the equipment has obvious sign of breakage

12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT
UNCONDITIONED, STORAGE TEMPERA TURE ABOVE 600 C (1400F), IT
MA Y DAMAGE THE EQUIPMENT .

CAUTION: Explosion or serious damage may occur if the battery is

incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer.

Safety Instructions

vi

Box Contents

• 1 x VIA Mainboard

• 1 x User’s manual

• 1 x Floppy ribbon cable

• 1 x ATA-66/100 Hard drive ribbon cable

• 1 x 2 Port USB Module

• 1 x Driver Utilities CD

vii

CONTENTS

Chapter 1. Specifications ......................................................................... 1-1

Mainboard Specifications ....................................................................1- 2

Mainboard Layout ............................................................................... 1-4

Chapter 2. Installation.............................................................................. 2-1

CPU ......................................................................................................2-2

CPU Installation Procedure ........................................................... 2-2

Installing the CPU Fan ..................................................................2 -3

CPU Core Speed Derivation Procedure ......................................... 2-4

Memory Installation ............................................................................. 2 -5

DDR SDRAM Module Installation Procedures.............................2 -6

Power Supply ....................................................................................... 2 -7

ATX 20-Pin Power Connector: JWR1 ............................................ 2-7

ATX 12V Power Connector: JPW1 ................................................ 2-7

Back Panel ............................................................................................2-8

Mouse Connector: JKBMS1 .........................................................2-8

Keyboard Connector: JKBMS1 ..................................................... 2-8

LAN Jack (RJ-45) ...........................................................................2-8

USB Connectors............................................................................ 2-8

Serial Port Connectors: COM A & COM B....................................2-8

Joystick/Midi Connector ............................................................... 2- 8

Audio Port Connectors ................................................................. 2-9

Parallel Port Connector: LPT1........................................................2-9

Connectors......................................................................................... 2-10

Floppy Disk Drive Connector: FDD1........................................... 2-10

Power Saving Switch Connector: JGS1........................................ 2-10

Hard Disk Connectors: IDE1 & IDE2 ........................................... 2-11

Case Connector: JFP2.................................................................. 2-12

viii

HDD LED..................................................................................... 2-13

CD-In Connector: J2 .................................................................... 2-14

Aux Line-In Connector: J6........................................................... 2-14

Modem-In Connector: J5 ............................................................. 2-14

IrDA Infrared Module Connector: IR1 & IR2 .............................. 2-15

Front Panel Audio Connector: JAUDIO1 .................................... 2-16

Wake On Ring Connector: JMDM1 ............................................. 2-17

Wake On LAN Connector: JWOL1.............................................. 2-17

Fan Power Connectors: PF AN1/SFAN1 ...................................... 2-18

USB Front Connector: USB2 (Intel spec) .................................... 2-19

Remote Power On/Off Switch Connector: JRMS1 ....................... 2-20

Jumpers .............................................................................................. 2-21

Clear CMOS Jumper: JBA T1........................................................ 2-21

Slots ................................................................................................... 2-22

AGP (Accelerated Graphics Port) Slot......................................... 2-22

PCI Slots...................................................................................... 2-22

CNR (Communication Network Riser) ......................................... 2-22

PCI Interrupt Request Routing .................................................... 2-23

Chapter 3. A ward BIOS Setup .................................................................. 3-1

Entering Setup......................................................................................3-2

Control Keys ........................................................................................ 3-2

Getting Help .........................................................................................3-3

The Main Menu ...................................................................................3-4

Standard CMOS Features ....................................................................3 -6

Advanced BIOS Features ....................................................................3-8

Advanced Chipset Features...............................................................3-11

Integrated Peripherals ........................................................................ 3-16

Power Management Setup ................................................................. 3-22

PNP/PCI Configurations..................................................................... 3-26

ix

PC Health Status ................................................................................ 3-28

Frequency/Voltage Control ................................................................ 3-29

Load Fail-Safe Defaults ...................................................................... 3-31

Load Optimized Defaults .................................................................... 3-32

Supervisor/User Password................................................................. 3-33

Save & Exit Setup............................................................................... 3-35

Exit Without Saving ........................................................................... 3-36

Chapter 4. Driver Setup ............................................................................ 4-1

VIA Apollo P4X266A Chipset Driver................................................... 4-2

Realtek ALC201A Audio Driver ...........................................................4-7

Introduction

1-1

1

The VIA P4XB-MA Micro ATX mainboard is a high per­formance mainboard based on VIA Apollo P4X266A
chipset. The VIA Apollo P4X266A chipset brings sup­port for high bandwidth DDR266 SDRAM to the Intel

®

Pentium® 4 processor platform, and utilizes advanced V­Link technology for optimal system efficiency. Designed
for the latest 478-pin Pentium® 4 processors, the P4XB­MA offers the ideal platform for building powerful PCs
and workstations.

This chapter includes the following topics:

Mainboard Specifications 1- 2
Mainboard Layout 1-4

Specifications

Chapter 1

1-2

CPU

Supports 478-pin Intel® Pentium® 4 Processors
400MHz Front Side Bus.

 Supports clock speeds from 1.5GHz to 2.0GHz.

Chipset

VIA Apollo P4X266A chipset

- 64bit DDR SDRAM memory interface (200/266MHz).

- 32bit AGP interface (66MHz) for 4x/2x mode.

- 8bit V-Link interface (66MHz) with peak bandwidth of 266MB/s.

- Dual IDE interface supports AT A-66 and ATA-100 modes.

Main Memory

Supports up to 2GB of DDR266 SDRAM (PC2100/PC1600).
Supports four memory banks using two 184-pin DDR266 DIMM slots.
2.5v DDR266 SDRAM.

Slots

One AGP (Accelerated Graphics Port) 4x slot.

 Three PCI 2.2 32-bit PCI expansion slots (supports 3.3v/5v PCI bus interface).

One CNR (Communication Network Riser) slot.

On-Board IDE

z IDE controller on the south bridge of the VIA Apollo P4X266A chipset

provides IDE HDD/CD-ROM with PIO, Bus Master and Ultra DMA 33/66/
100 operation modes.

z Can connect up to four IDE devices.

On-Board Peripherals

On-Board Peripherals include:

- 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and

2.88Mbytes.

- 2 serial ports (COM A + COM B).

- 1 parallel port supports SPP/EPP/ECP mode.

- Up to 4 USB connections (2 back panel ports & 2 Front pin-headers).

- 1 IrDA connector for SIR/CIR/ASKIR/HPSIR.

- 1 RJ-45 LAN port.

Mainboard Specifications

Introduction

1-3

- 1 game (MIDI) port.

- 3 Audio jacks: line-out, line-in and mic-in.

Audio

 AC97 link controller integrated in VT8233.
 2-channel RealTek ALC201A software audio codec .

- Compliance with AC97 v2.2 spec.

- Meets PC2001 audio performance requirement.

LAN

 RealT ek R TL81000L 10/100 Base-T Fast Ethernet Controller .

- Supports 10MB/s and 100MB/s auto-negotiation operation.

- Compliance with PCI v2.2.

- Compliance with PC99 standard.

- Supports Wake-On-LAN and remote wake-up.

- Supports ACPI power management.

BIOS

 Plug and Play Award BIOS

Dimension

 Micro-ATX Form Factor: 24.3cm x 23.1cm.

Mounting

6 standard mounting holes.

Chapter 1

1-4

VIA P4XB-MA MicroA TX Mainboard

Mainboard Layout

Hardware Setup

2-1

Installation

This chapter provides you with the information about
hardware setup procedures. While installating, be
careful in holding the components and follow the
installation procedures. Some components can be
damaged if they are installed incorrectly.

If possible, use a grounded wrist strap before han­dling computer components. Static electricity can
damage the components.

This chapter contains the following topics:

Central Processing Unit (CPU) 2 - 2
Memory Installation 2 -5
Power Supply 2 - 7
Back Panel 2 -8
Connectors 2-10
Jumpers 2-21
Slots 2-22

2

Chapter 2

2-2

The VIA P4XB-MA mainboard supports the Intel® Pentium® 4 processor in the
478 pin package. When installing the CPU, make sure the CPU has a heat sink
and a cooling fan attached on the top to prevent overheating. If the heat sink
and cooling fan are not included with the CPU, contact your dealer to purchase
and install them before turning on the computer.

1. Pull the lever sideways away

from the socket. Then raise the
lever up to a 90-degree
angle.

2 . Look for the dot/cut edge. The

dot/cut edge should point to­wards the lever pivot. The
CPU will only fit in the correct
orientation.

3. Hold the CPU down firmly,

and then close the lever shut
to complete the installation.

CPU Installation Procedures

Overheating will seriously damage the CPU and system.
Always make sure the cooling fan can work properly to
protect the CPU from overheating.

WARNING!

Central Processing Unit: CPU

Hardware Setup

2-3

Installing the CPU Fan

To effectively dissipate heat generated by the CPU, you need to attach the
CPU cooling fan and heatsink on top of the CPU. Follow the instructions below
to install the Heatsink/Fan:

2. Position the heatsink onto the reten-

tion mechanism.

1. Locate the CPU and its retention

mechanism on the motherboard.

3. Mount the fan on top of the heatsink.

Press down the fan until its four clips
get wedged in the holes of the reten­tion mechanism.

4. Press the two levers down to fasten the

fan. Each lever can be pressed down in
only ONE direction.

retention mechanism

levers

Chapter 2

2-4

CPU Core Speed Derivation Procedure

If CPU Clock = 100MHz

Core/Bus ratio = 14

then CPU core speed = Host Clock x Core/Bus ratio

= 100MHz x 14
= 1.4GHz

Overclocking

This motherboard is designed to support overclocking.
However, please make sure your components are able to
tolerate the abnormal settings required for overclocking.
Any attempt to operate beyond product specifications is not
recommended. We do not guarantee the damages or risks

caused by operation beyond product specifications.

W ARNING!

5. Connect the fan power cable from the mounted fan to the 3-pin fan power connector

on the board.

fan power cable

Hardware Setup

2-5

The mainboard provides two 184-pin DDR DIMM (2.5V) with 4 memory banks.
To operate properly , at least one DIMM module must be installed.

Y ou can install two PC1600/PC2100 DDR SDRAM modules on the DDR DIMM
slots (DDR 1~2).

DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but
doubles the rate by transfering data twice per cycle. It transfers data on both
the rising and falling edges of the clock. Conventional SDRAM only uses the
rising edge of the clock to transfer data.

DDR SDRAM uses 2.5 volts as opposed to 3.3 volts used in SDR SDRAM, and
requires 184-pin DIMM modules rather than 168-pin DIMM modules used by
SDR SDRAM.

Two types of DDR are available at the time of writing: PC1600 & PC2100.
PC1600 DDR SDRAM running at 100MHz will produce about 1.6GB/s memory
bandwidth. PC2100 running at 133MHz will produce 2.1GB/s memory bandwidth.

Memory Installation

Chapter 2

2-6

DDR Module Installation Procedures

You can install either single sided or double sided 184-pin DDR DIMM
modules into DDR DIMM slots, depending on your requirements. As op­posed to SDR DIMMs, DDR DIMMs have only one notch in the center of
module. The modules will only fit if placed in the correct position.

You can install memory modules in any of the following combinations:

Socket Memory Module Total Memory

Slot 1
(Bank 0 & Bank 1)

32MB, 64M B, 128MB ,
256MB, 512M B, 1GB

32MB~1G B

Slot 2
(Bank 2 & Bank 3)

32MB, 64M B, 128MB ,
256MB, 512M B, 1GB

32MB~1G B

M aximum System M emory Supported

32MB~2G B

1. The DDR DIMM module has only one notch in the center.

2. Insert the DDR module vertically into the DDR DIMM slot. Make sure the

notch is in the right position.

3. The plastic clips at sides of the DIMM slot will automatically close.

Volt

Front View Rear View

Hardware Setup

2-7

ATX 20-Pin Power Connector: JWR1

This connector is for the ATX power supply. To connect the ATX power
supply, make sure the plugs of the power supply is inserted in the proper
orientation and the pins are correctly aligned. Then, push down the power
supply firmly into the connector. The power connector supports an instant
power on function, which means the system will boot up immediately when the
power supply connector is inserted on the board.

The P4XB-MA mainboard requires an ATX power supply for powering the
system. Before inserting the power supply connector, always make sure that
all components are installed correctly to ensure that no damage will be caused.

ATX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.

PIN SIGNAL

1 GND
2 GND
3 12V
4 12V

JPW1 Pin Definition

PIN SIGNAL

11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5 V
20 5 V

PIN SIGNAL

1 3.3V
2 3.3V
3 GND
45V
5 GND
65V
7 GND
8 PW_OK
9 5V_SB
10 12V

JWR1 Pin Definition

JWR1

10

1

20

11

JPW1

1

3

2

4

Power Supply

Chapter 2

2-8

Serial Port Connector: COM A & COM B

The mainboard offers two 9-pin male serial port connectors (COM A & COM
B). You can attach a serial mouse or other serial devices directly to these ports.

Joystick/Midi Connectors

You can connect a joystick or game pad to this connector.

USB Connectors

The mainboard provides a UHCI (Universal Host Controller Interface) Univer­sal Serial Bus root for attaching USB devices such as keyboard, mouse or other
USB-compatible devices. You can plug the USB device directly into ths
connector.

LAN Jack (RJ-45)

The mainboard provides one standard RJ-45 jack for connection to Local Area
Network (LAN). You can connect a network cable to the LAN jack.

Keyboard Connector: JKBMS1

The mainboard provides a standard PS/2® keyboard mini DIN connector for
attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly into this
connector.

The Back Panel of the VIA P4XB-MA mainboard provides the following
connectors:

Mouse Connector: JKBMS1

The mainboard provides a standard PS/2 mouse mini DIN connector for attach­ing a PS/2 mouse. You can plug a PS/2 mouse directly into this connector.

COM A

COM B

LPT 1

Joystick/MIDI

Line Out

Line In

Mic

PS/2 Keyboard

PS/2 Mouse

USB Port 1

USB Port 2

RJ-45 LAN Port

Back Panel

Hardware Setup

2-9

Audio Port Connectors

Line Out is a connector for Speakers or Headphones. Line In is used for an
external CD player, tape player, or other audio devices. Mic In is a connector
for microphones.

Parallel Port Connector: LPT1

The mainboard provides a 25-pin female centronic connector for LPT. A paral­lel port is a standard printer port that supports Enhanced Parallel Port (EPP)
and Extended Capabilities Parallel Port (ECP) mode.

Chapter 2

2-10

The P4XB-MA mainboard provides connectors for FDD, IDE HDD, case,
modem, LAN, USB Ports, IR module and CPU/System F AN.

Floppy Disk Drive Connector: FDD1

The standard floppy disk drive connector supports 360K, 720K, 1.2M, 1.44M
and 2.88M floppy disk types.

Power Saving Switch Connector: JGS1

This connector is for attaching a power saving switch. Pressing the switch
once will enter the system into sleep/suspend state. Pressing any key will wake
up the system.

JGS1

Connectors

Hardware Setup

2-11

Hard Disk Connectors: IDE1 & IDE2

The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 33/66/100 con­troller that provides PIO mode 0~4, Bus Master, and Ultra DMA/33/66/100
functions. You can connect up to four hard disk drives, CD-ROM, 120MB
Floppy (reserved for future BIOS) and other devices. These connectors utilize
the provided IDE hard disk cable.

IDE1 (Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can
connect a Master and a Slave drive. You must configure the second
hard drive to Slave mode by setting the jumper accordingly.

IDE2 (Secondary IDE Connector)
IDE2 can also connect a Master and a Slave drive.

TIP: If you install two hard disks on cable, you must configure the

second drive to Slave mode by setting its jumper. Refer to the hard disk
documentation supplied by hard disk vendors for jumper setting

instructions.

Chapter 2

2-12

Power Switch

Connect to a 2-pin push button switch.

Reset Switch

Reset switch is used to reboot the system rather than turning the power ON/
OFF. Avoid rebooting while the HDD is working. You can connect the Reset
switch from the system case to this pin.

Power LED

The Power LED is lit while the system power is on. There are two types of LEDs
you can connect from the system case to the pin:

Case Connector: JFP2

The case connector JFP2 allows you to connect to the the Power Switch,
Reset Switch, Power LED and HDD LED on the case.

Pin Description Pin Description

1 *HDD_LED+ 2 PWR_LED G
3 HDD_LED- 4 PWR_LED Y
5 RESET- 6 PWR_SW+
7 RESET+ 8 PWR_SW­9 RSVD_DNU 10 NC

JFP2 Pin Definition

* Hard disk LED pullup (330 ohm) to +5V

JFP2

Power
Switch

Power
LED

Reset
Switch

HDD
LED

9 10

2

1

Reserved

Hardware Setup

2-13

2-pin single color power LED: The power LED is not able to change its
color. Therefore, you can only choose Blinking in the BIOS utility for
the power LED to indicate the suspend/sleep mode.

2-pin dual color power LED: The 2-pin power LED can change its color
to indicate different system states. Therefore, you can select either
Blinking or Dual (color) for the power LED to show the suspend/sleep
mode.

HDD LED

The HDD LED shows the activity of a hard disk drive connected to the IDE1 or
IDE2 connector. Avoid turning the power off while the HDD is working. You
can connect the HDD LED from the system case to this pin.

LED Status Description

Steady Green The system is in the full-on mode.
Blinking The system enters the suspend/sleep mode.

z When you select Blinking:

LED Status Description

Steady Green The system is in the full-on mode.
Steady Orange The system enters the suspend/sleep mode.

z When you select Dual (color):

Chapter 2

2-14

CD-In Connector: J2

This connector is for the CD-ROM audio connector.

Aux Line-In Connector: J6

This connector is for a DVD add-on card with Line-in connector.

Modem-In Connector: J5

This connector is for a modem with internal audio connector.

J2

GND

R

L

J5

GND

Phone_In

Mono_Out

J6

GND

R

L

Hardware Setup

2-15

IrDA Infrared Module Connectors: IR1 & IR2

These connectors allow you to connect to IrDA Infrared modules. You must
configure the settings through the BIOS setup to use the IR function. The
difference between IR1 & IR2 is that IR2 is compliant to the3 Intel Front Panel
I/O Connectivity Design Guide.

1 VCC
2NC
3 IRRX
4 GND
5 IRTX

Pin Signal

IR1 Pin Definition

1 Not assigned
2NC
3 VCC
4 GND
5 IRTX
6 IRRX

Pin Signal

IR2 Pin Definition

IR1

1

12

56

IR2

Chapter 2

2-16

Front Panel Audio Connector: JAUDIO1

You can connect an optional audio connector to the Front Panel Audio pin­header. Pin numbers 1 to 10 of the audio pin header are compliant to the Intel
Front Panel I/O Connectivity Design Guide.

JAUDIO1

1

20

2

19

10

9

Pin Signal Description

1 AUD_MIC Front Panel Microphone input signal
2 AUD_GND Groun d used by Ana log Au dio C ircui ts
3 AUD_MIC_BIAS Microphone Power
4 AUD_VCC Filtered +5V used by Analog Audio Circuits
5 AUD_FPOUT_R Right Channel Audio signal to Front Panel
6 AUD_RET_R Right Channel Audio signal Return from Front Panel
7 HP_ON RSVD for future use to control Headphone Amplifier
8 NC No Connection
9 AUD_FPOUT_L Left Channel Audio signal to Front Panel
1 0 AUD_RET_L Left Channel Audio signal Return from Front Panel

JAUDIO1 Pin Definition (1~10)

Pin Signal Description

11 AUD_MIC Front Panel Microphone input signal
1 2 AUD_GND Gr ound u sed by Anal og Aud io Cir cuits
13 AUD_FPOUT_R Right Channel Audio signal to Front Panel
1 4 AUD_RET_R Right Channel Audio signal Return from Front Panel
1 5 AUD_FPOUT_L Left Channel Audio signal to Front Panel
1 6 AUD_RET_L Left Channel Audio signal Return from Front Panel
1 7 AUD_GND Gr ound u sed by Anal og Aud io Cir cuits
1 8 NC No Connection
19 LINE-IN-R Line in Right
20 LINE-IN-L Line in Left

JAUDIO1 Pin Definition (11~20)

Hardware Setup

2-17

Wake On LAN Connector: JWOL1

This connector allows you to connect to a LAN card with Wake On LAN
function. You can wake up the computer via remote control through a local area
network (LAN).

Wake On Ring Connector: JMDM1

This connector allows you to connect to a modem card with the W ake On Ring
function. The connector will power up the system when a signal is received
through the modem card.

JMDM1

NC

MDM_WAKEUP

5VSB

1

GND

NC

JWOL1

5VSB

GND

MP_WAKEUP

1

Chapter 2

2-18

Fan Power Connectors: PFAN1/SFAN1

The PFAN1 (processor fan) & SFAN1 (system fan) connectors provide +12V
power supply for the system cooling fan, via a three-pin connector. When
connecting the wire to the connectors, always take note that the red wire is the
positive and should be connected to the +12V, the black wire is Ground and
should be connected to GND. If the mainboard has a System Hardware Moni­tor chipset on-board, you must use a specially designed fan with speed sensor
to take advantage of the CPU fan control.

NOTE: Always consult the vendor for proper CPU cooling fan.

SFAN1

SENSOR

+12V

GND

PFAN1

SENSOR

+12V

GND

Hardware Setup

2-19

USB Front Connector: USB2 (Intel spec)

The mainboard provides a front Universal Serial Bus (USB) connector for con­necting additional USB devices. This USB2 connector is compliant to the Intel
Front Panel I/O Connectivity Design Guide.

10

2

9

1

Pin Description Pin Description

1 VCC 2 VCC
3 -DATA3 4 -DATA2
5 +DATA3 6 +DAT A2
7 GND 8 GND
9 NC 10 Overcurrent

Signal

USB2 Pin Definition

Chapter 2

2-20

Remote Power On/Off Switch Connector: JRMS1

Connects to a 2-pin push button switch. When the system is off, pressing the
button will turn the system on. When the system is on, pressing the button
once will enter the system to the sleep/suspend state. If the button is pressed
for more than four seconds, the system will be turned off. To change the setup,
go to the BIOS Power Management Setup.

JRMS1

Hardware Setup

2-21

Clear CMOS Jumper: JBAT1

There is a CMOS RAM on board that has a power supply from external battery
to keep the data of system configuration. With the CMOS RAM, the system
can automatically boot OS every time it is turned on. That battery has long life
time for at least 5 years. If you want to clear the system configuration, use the
JBAT1 (Clear CMOS Jumper ) to clear data. Follow the instructions below to
clear the data:

The mainboard provides one jumper for setting the computer’s functions. This
section will explain how to change your mainboard’s function through the use
of the jumper.

Clear CMOS

3

1

Keep CMOS

3

1

You can clear CMOS by shorting 2-3 pin while the
system is off. Then return to 1-2 pin position. Avoid
clearing the CMOS while the system is on; it will
damage the mainboard.

WARNING!

JBAT1

1

Jumpers

Chapter 2

2-22

AGP (Accelerated Graphics Port) Slot

The AGP slot allows you to insert the AGP graphics card. AGP is an interface
specification designed for the throughput demands of 3D graphics. It intro­duces a 66MHz, 32-bit channel for the graphics controller to directly access
main memory and provides one level of throughput: 4x (1.07Gbps).

PCI Slots

Three PCI slots allow you to insert the expansion cards to meet your needs.
When adding or removing expansion cards, make sure that you unplug the
power supply first. Meanwhile, read the documentation for the expansion card
to make any necessary hardware or software settings for the expansion card,
such as jumpers, switches or BIOS configuration.

CNR (Communication Network Riser)

The CNR slot allows you to insert the CNR expansion cards. CNR is a specially
designed network, audio, or modem riser card for ATX family mainboards. Its
main processing is done through software and controlled by the motherboard’ s
chipset.

The mainboard provides three 32-bit Master PCI bus slots, one AGP slot and
one CNR slot.

PCI Slots

AGP Slot

CNR Slot

Slots

Hardware Setup

2-23

PCI Interrupt Request Routing

The IRQ, abbreviation of interrupt request line and pronounced I-R-Q, are
hardware lines over which devices can send interrupt signals to the
microprocessor. The “PCI & LAN” IRQ pins are typically connected to the PCI
bus INT A# ~ INT D# pins as follows:

Order 1 Order 2 Order 3 Order 4
PCI Slot 1 INT A# INT B# INT C# INT D#
PCI Slot 2 INT B# INT C# INT D# INT A#
PCI Slot 3 INT C# INT D# INT A# INT B#
LAN INT B#

BIOS Setup

3-1

Chapter 3. BIOS Setup

BIOS Setup

3

Entering Setup 3 -2
Control Keys 3 -2
Getting Help 3 -3
The Main Menu 3-4
Standard CMOS Features 3 -6
Advanced BIOS Features 3- 8
Advanced Chipset Features 3-11
Integrated Peripherals 3-16
Power Management Setup 3-22
PNP/PCI Configurations 3-26
PC Health Status 3-28
Frequency/Voltage Control 3-29
Load Fail-Safe Defaults 3-31
Load Optimized Defaults 3-32
Set Supervisor/User Password 3-33
Save & Exit Setup 3-35
Exit Without Saving 3-36

Chapter 3

3-2

Entering Setup

Control Keys

<n>

Move to the previous item

<p>

Move to the next item

<m>

Move to the item in the left hand

<o>

Move to the item in the right hand
<Enter> Select the item
<Esc> Jumps to the Exit menu or returns to the main menu from a submenu
<+/PU> Increase the numeric value or make changes
<-/PD> Decrease the numeric value or make changes
<F1> General help, only for Status Page Setup Menu and Option Page

Setup Menu
<F5> Restore the previous CMOS value from CMOS, only for Option Page

Setup Menu
<F6> Load the default CMOS value from Fail-Safe default table, only for

Option Page Setup Menu
<F7> Load Optimized defaults
<F10> Save all the CMOS changes and exit

Power on the computer and the system will start POST (Power On Self Test)
process. When the message below appears on the screen, press <DEL> key to
enter Setup.

Press DEL to enter SETUP

If the message disappears before you respond and you still wish to enter
Setup, restart the system by turning it OFF and On or pressing the RESET
button. You may also restart the system by simultaneously pressing <Ctrl>,
<Alt>, and <Delete> keys.

BIOS Setup

3-3

Getting Help

Sub-Menu

If you find a right pointer symbol (as shown in
the right view) appears to the left of certain fields
that means a sub-menu containing additional
options can be launched from this field. You can
use control keys (hi ) to highlight the field and
press <Enter> to call up the sub-menu. Then you
can use the control keys to enter values and
move from field to field within a sub-menu. If
you want to return to the main menu, just press
<Esc >.

General Help <F1>

The BIOS setup program provides a General Help screen. You can call up this
screen from any menu by simply pressing <F1>. The Help screen lists the
appropriate keys to use and the possible selections for the highlighted item.
Press <Esc> to exit the Help screen.

After entering the Setup menu, the first menu you will see is the Main Menu.

Main Menu

The main menu lists the setup functions you can make changes to. You can use
the control keys (hi ) to select the item. The on-line description of the high­lighted setup function is displayed at the bottom of the screen.

IDE Primary Master
IDE Primary Slave
IDE Secondary Master
IDE Secondary Slave

Chapter 3

3-4

The Main Menu

Standard CMOS Features

Use this Menu for basic system configurations.

Advanced BIOS Features

Use this menu to set the Advanced Features available on your system.

Advanced Chipset Features

Use this menu to change the values in the chipset registers and optimize your
system’ s performance.

Integrated Peripherals

Use this menu to specify your settings for integrated peripherals.

Power Management Setup

Use this menu to specify your settings for power management.

PnP/PCI Configurations

This entry appears if your system supports PnP/PCI.

Once you enter Award® BIOS CMOS Setup Utility , the Main Menu (Figure 1)
will appear on the screen. The Main Menu allows you to select from twelve
setup functions and two exit choices. Use arrow keys to select among the items
and press <Enter> to accept or enter the sub-menu.

BIOS Setup

3-5

PC Health Status

This entry shows your PC health status.

Frequency/V oltage Control

Use this menu to specify your settings for frequency/voltage control.

Load Fail-Safe Defaults

Use this menu to load factory default settings in the BIOS for stable system running

Load Optimized Defaults

Use this menu to load factory default settings into the BIOS for optimal and
stable system operations.

Supervisor/User Password

Use this menu to set User and Supervisor Passwords.

Save & Exit Setup

Save CMOS value changes to CMOS and exit setup.

Exit Without Saving

Abandon all CMOS value changes and exit setup.

Chapter 3

3-6

Date

The date format is <day><month> <date> <year>.

day Day of the week, from Sun to Sat, determined by BIOS. Read-only.
month The month from Jan. through Dec.
date The date from 1 to 31 can be keyed by numeric function keys.
year The year, depends on the year of the BIOS

Time

The time format is <hour> <minute> <second>.

IDE Primary/Secondary Master/Slave

Press PgUp/<+> or PgDn/<-> to select Manual, None, Auto type. Note that the
specifications of your drive must match with the drive table. The hard disk will
not work properly if you enter improper information for this category. If your
hard disk drive type is not matched or listed, you can use Manual to define
your own drive type manually.

If you select Manual, related information is asked to be entered to the follow-

Standard CMOS Features

The items in Standard CMOS Features Menu are divided into 10 categories.
Each category includes no, one or more than one setup items. Use the arrow
keys to highlight the item and then use the <PgUp> or <PgDn> keys to select
the value you want in each item.

BIOS Setup

3-7

ing items. Enter the information directly from the keyboard. This information
should be provided in the documentation from your hard disk vendor or the
system manufacturer.

If the controller of HDD interface is SCSI, the selection shall be “None”.

If the controller of HDD interface is CD-ROM, the selection shall be “None”.

Access Mode The settings are CHS, LBA, Large, Auto.
Capacity The formatted size of the storage device.
Cylinder Number of cylinders.
Head Number of heads.
Precomp Write precompensation.
Landing Zone Cylinder location of the landing zone.
Sector Number of sectors.

Drive A/B

This item allows you to set the type of floppy drives installed. Available
options are None, 360K, 5.25 in., 1.2M, 5.25 in., 720K, 3.5 in., 1.44M, 3.5 in.,

2.88M, 3.5 in.

Video

The setting controls the type of video adapter used for the primary monitor of
the system. Available options are EGA/VGA , CGA 40, CGA 80 and Mono.

Halt On

The setting determines whether the system will stop if an error is detected at
boot. Available options are:

All Errors The system stops when any error is detected.
No Errors The system doesn’t stop for any detected error.
All, But Keyboard The system doesn’t stop for a keyboard error.
All, But Diskette The system doesn’t stop for a disk error.
All, But Disk/Key The system doesn’t stop for either a disk or a

keyboard error.

Chapter 3

3-8

Advanced BIOS Features

Anti-Virus Protection

The item is to set the Virus Warning feature for IDE Hard Disk boot sector
protection. If the function is enabled and any attempt to write data into this
area is made, BIOS will display a warning message on screen and beep. Settings:
Disabled and Enabled.

CPU L1 & L2 Cache

The item allows you to turn on or off CPU’s internal (L1) and external (L2)
cache. Settings: Enabled and Disabled.

CPU L2 Cache ECC Checking

This setting allows you to enable or disable the ECC (Error-Correcting Code)
feature for error detection and correction when data passes through L2 cache
memory. Setting options: Enabled and Disabled.

Quick Power On Self Test

The option speeds up Power On Self Test (POST) after you power on the
computer. When setting the item to Enabled, BIOS will shorten or skip some
check items during POST. Settings: Enabled and Disabled.

First/Second/Third Boot Device

The items allow you to set the sequence of boot devices where BIOS attempts

BIOS Setup

3-9

to load the disk operating system. The settings are:

Floppy The system will boot from floppy drive.
LS120 The system will boot from LS-120 drive.
HDD-0 The system will boot from the first HDD.
SCSI The system will boot from the SCSI.
CDROM The system will boot from the CD-ROM.
HDD-1 The system will boot from the second HDD.
HDD-2 The system will boot from the third HDD.
HDD-3 The system will boot from the fourth HDD.
ZIP The system will boot from AT API ZIP drive.
LAN The system will boot from the Network drive.
Disabled Disable this sequence.

Boot Other Device

Setting the option to Enabled allows the system to try to boot from other
device if the system fails to boot from the First/Second/Third boot device.

Swap Floppy Drive

Setting to Enabled will swap floppy drives A: and B:.

Boot Up Floppy Seek

Setting to Enabled will make BIOS seek floppy drive A: before booting the
system. Settings: Disabled and Enabled.

Boot Up NumLock Status

This item is to set the NumLock status when the system is powered on. Setting
to On will turn on the Num Lock key when the system is powered on. Setting to

Off will allow end users to use the arrow keys on the numeric keypad. Settings:
On and Off.

Gate A20 Option

This item is to set the Gate A20 status. A20 refers to the first 64KB of extended
memory. When the default value Fast is selected, the Gate A20 is controlled by
Port92 or chipset specific method resulting in faster system performance. When
Normal is selected, A20 is controlled by a keyboard controller or chipset hard­ware.

Chapter 3

3-10

T ypematic Rate Setting

This item is used to enable or disable the typematic rate setting including
T ypematic Rate & Typematic Delay.

T ypematic Rate (Chars/Sec)

After Typematic Rate Setting is enabled, this item allows you to set the rate
(characters/second) at which the keys are accelerated. Settings: 6, 8, 10, 12,
15, 20, 24 and 30.

T ypematic Delay (Msec)

This item allows you to select the delay between when the key was first pressed
and when the acceleration begins. Settings: 250, 500, 750 and 1000.

Security Option

This specifies the type of BIOS password protection that is implemented. Set­tings are described below:

OS Select For DRAM > 64MB

This allows you to run the OS/2® operating system with DRAM greater than
64MB. Setting options: Non-OS2, OS2.

Video BIOS Cacheable

Selecting Enabled allows caching of the video BIOS ROM at C0000h to C7FFFh,
resulting in better video performance. However, if any program writes to this
memory area, a system error may result. Settings: Enabled and Disabled.

Option Description

Setup The password prompt appears only when end users try to

run Setup.

System A password prompt appears every time when the com-

puter is powered on or when end users try to run Setup.

BIOS Setup

3-11

The Advanced Chipset Features setup option is used to change the values of
the chipset registers. These registers control most of the system options in the
computer.

Advanced Chipset Features

DRAM Clock/Drive Control

Press <Enter> to enter the sub-menu and the following screen appears:

DRAM Timing by SPD

This setting determines whether DRAM timing is configured by reading

Note: Change these settings only if you are familiar with the chipset.

Chapter 3

3-12

the contents of the SPD (Serial Presence Detect) EPROM on the DRAM
module. Selecting Yes makes SDRAM Cycle Length and Bank Interleave
automatically determined by BIOS according to the configurations on the
SPD. Setting options: Yes, No.

DRAM Frequency (MHz)

The chipset supports synchronous and asynchronous mode between
host clock and DRAM clock frequency. Available settings are:

Auto: DRAM clock frequency is automatically

determined.

HCLK: The DRAM clock will be equal to the Host clock.
HCLK+33: The DRAM clock will be equal to the Host clock

plus 33MHz. For example, if the Host clock is
100MHz, the DRAM clock will 133MHz.

DRAM CAS Latency

The field controls the CAS latency, which determines the timing delay
before SDRAM starts a read command after receiving it. Setting options:
2, 2.5, 3 (clock cycles), Auto. 2 increases system performance while 2.5
provides more stable system performance for DDR SDRAM.

Bank Interleave

This setting determines the bank interleave for the installed SDRAM.
Setting options: Disabled, Auto.

Row Precharge

This setting allows you to select the number of DRAM clocks allocated
for the Row Address Strobe (RAS#) signal to accumulate its charge be­fore the DRAM is refreshed. If insufficient time is allowed, refresh may be
incomplete and data lost. The lower the timing numbers, the faster the
memory performance. Setting options: 3T, 2T, Auto.

RAS Pulse

This setting allows you to select the number of DRAM clock cycles
allotted for the RAS pulse width, according to DRAM specifications.The
lower the timing numbers, the faster the memory performance. Setting
options: 6T, 5T, Auto.

BIOS Setup

3-13

RAS to CAS

When DRAM is refreshed, both rows and columns are addressed
separately. This setup item allows you to determine the timing of the
transition from RAS (row address strobe) to CAS (column address strobe).
The lower the timing numbers, the faster the memory performance. Set­ting options: 3T, 2T, Auto.

Burst Length

This setting allows you to set the size for Burst-Length for DRAM. The
bigger the sizes, the faster the system addresses memory. Setting options:

4, 8, Auto.

DRAM Command Rate

This setting controls the DRAM command rate. Selecting 1T allows DRAM
signal controller to run at 1T (T=clock cycles) rate. Selecting 2T makes
DRAM signal controller run at 2T rate. 1T is faster than 2T. Setting options:

2T, 1T.

AGP & P2P Bridge Control

Press <Enter> to enter the sub-menu and the following screen appears:

AGP Aperture Size

This setting controls just how much system RAM can be allocated to
AGP for video purposes. The aperture is a portion of the PCI memory

Chapter 3

3-14

address range dedicated to graphics memory address space. Host cycles
that hit the aperture range are forwarded to the AGP without any translation.
Setting options: 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and 256MB.

AGP Driving Control

The setting is used to adjust AGP driving force. Selecting Manual allows
you to type a AGP driving force in AGP Driving Value. It is strongly
suggested to select Auto to avoid causing any system error. Setting
options: Auto, Manual.

AGP Fast Write

This setting enables/disables the AGP Fast Write feature. The Fast Write
technology allows CPU to write directly into the graphics card without
passing anything through system memory and improves 4X speed
accordingly. Select Enabled only when your AGP card supports the feature.
Setting options: Enabled, Disabled.

CPU & PCI Bus Control

Press <Enter> to enter the sub-menu and the following screen appears:

CPU to PCI Write Buffer

When Enabled, CPU can write up to four words of data to the PCI write
buffer before CPU must wait for PCI bus cycle to finish. If Disabled, CPU
must wait after each write cycle until PCI bus signals that it is ready to

BIOS Setup

3-15

receive more data. Setting options: Enabled, Disabled.

PCI Master 0 WS Write

When Enabled, writes to the PCI bus are executed with zero wait state.
Setting options: Enabled, Disabled.

PCI Delay T ransaction

The chipset has an embedded 32-bit posted write buffer to support delay
transaction cycles. Select Enabled to support compliance with PCI speci­fication version 2.1. Setting options: Enabled, Disabled.

System BIOS Cacheable

Selecting enabled allows write through caching of the system BIOS ROM at
F0000h to FFFFF except F8000 to F8FFF, resulting in better system BIOS
performance.

Chapter 3

3-16

Integrated Peripherals

Onboard LAN Chip

This setting enables the onboard R TL8100L LAN chip. Setting options: Enabled,
Disabled.

VIA OnChip IDE Device

Press <Enter> to enter the sub-menu and the following screen appears:

BIOS Setup

3-17

OnChip IDE Channel 0/1

The integrated peripheral controller contains an IDE interface with sup­port for two IDE channels. Choose Enabled to activate each channel
separately. Setting options: Disabled, Enabled.

Primary/Secondary Master/Slave PIO

The four fields allow you to set a PIO (Programmed Input/Output) mode
for each of the four IDE devices that the onboard IDE interface supports.
Modes 0~4 provide increased performance. In Auto mode, BIOS auto­matically determines the best mode for each IDE device.

Primary/Secondary Master/Slave UDMA

Ultra DMA implementation is possible only if your IDE device supports it
and your operating environment contains a DMA driver. If both your
hard drive and software support Ultra DMA 33, select Auto to enable
BIOS support. Setting options: Auto, Disabled.

IDE HDD Block Mode

This setting allows your hard disk controller to use the fast block mode to
transfer data to and from the hard disk drive. Block mode is also called
Block Transfer, Multiple Commands or Multiple Sector Read/Write. Se­lecting enabled mode enables the IDE controller to use block mode; Dis­abled mode allows the controller to use standard mode.

Chapter 3

3-18

VIA OnChip PCI Device

Press <Enter> to enter the sub-menu and the following screen appears:

VIA-3058 AC97 Audio

Auto allows the mainboard to detect whether an audio device is used. If
the device is detected, the onboard VIA AC’97 (Audio Codec’97) con­troller will be enabled; if not, it is disabled. Disable the controller if you
want to use other controller cards to connect an audio device. Setting
options: Auto, Disabled.

VIA-3068 MC97 Modem

Auto allows the mainboard to detect whether a modem is used. If a modem
is used, the onboard VIA MC’97 (Modem Codec’97) controller will be
enabled; if not, it is disabled. Disable the controller if you want to use
other controller cards to connect to a modem. Setting options: Auto,

BIOS Setup

3-19

Winbond Super I/O Device

Press <enter> to enter the sub-menu and the following screen appears:

Onboard FDC Controller

This setting enables or disables the onboard Floppy controller. Select
Enabled when you have installed a floppy disk drive and want to use it.

Onboard Serial Port 1/2

This setting specifies the base I/O port address and IRQ for the onboard
Serial Port A / Serial Port B. Selecting Auto allows the BIOS to automati­cally determine the correct base I/O port address. Settings: Disabled,

3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3 and Auto.

UART Mode Select

The field allows you to specify the operation mode for serial port “COM
B”. Settings are:

Normal: RS-232C Serial Port
IrDA: IrDA-compliant Serial Infrared Port
ASKIR: Amplitude Shift Keyed Infrared Port

RxD, TxD Active

This setting controls the receiving and transmitting speed of the IR pe-

Chapter 3

3-20

ripheral in use. Setting options: Hi/Hi, Hi/Lo, Lo/Hi, Lo/Lo.

IR T ransmission Delay

This setting determines whether the IR transmission rate will be delayed
while converting to receiving mode. Setting options: Disabled, Enabled.

UR2 Duplex Mode

This setting controls the operating mode of IR transmission/reception.
Setting options: Full, Half. Under Full Duplex mode, synchronous, bi­directional transmission/reception is allowed. Under Half Duplex mode,
only asynchronous, bi-directional transmission/reception is allowed.

Use IR Pins

Please consult your IR peripheral documentation to select the correct
setting of the TxD and RxD signals. Setting options: RxD2/TxD2, IR-

Rx2Tx2.

Onboard Parallel Port

This specifies the I/O port address and IRQ of the onboard parallel port.
Settings: 378/IRQ7, 278/IRQ5, 3BC/IRQ7 and Disabled.

Parallel Port Mode

SPP : Standard Parallel Port
EPP : Enhanced Parallel Port
ECP : Extended Capability Port
ECP + EPP: Extended Capability Port + Enhanced Parallel Port

SPP/EPP/ECP/ECP+EPP

T o operate the onboard parallel port as Standard Parallel Port only , choose
“SPP.” To operate the onboard parallel port in the EPP mode
simultaneously, choose “EPP.” By choosing “ECP”, the onboard parallel
port will operate in ECP mode only. Choosing “ECP + EPP” will allow the
onboard parallel port to support both the ECP and EPP modes simultane­ously.

EPP Mode Select

The onboard parallel port is EPP Spec. compliant, so after the user chooses
the onboard parallel port with the EPP function, the following message
will be displayed on the screen: “EPP Mode Select.” At this time either

BIOS Setup

3-21

EPP 1.7 spec or EPP 1.9 spec can be selected.

ECP Mode Use DMA

The ECP mode has to use the DMA channel, so choose the onboard
parallel port with the ECP feature. After selecting it, the following mes­sage will appear: “ECP Mode Use DMA.” At this time, the user can choose
between DMA channel 3 or 1.

PWRON After PWR-Fail

This setting specifies whether your system will reboot after a power fail­ure or interrupts occurs. Available settins are:

Off Leaves the computer in the power off state.
On Reboots the computer.
Former-Sts Restores the system to the status before power failure or

interrupt occurs.

Game Port Address/Midi Port Address

This setting disables or assigns an address for the onboard game/midi
port.

Midi Port IRQ

This setting specifies an IRQ for the onboard midi port.

Init Display First

This setting specifies which VGA card is your primary graphics adaptor . A vail­able options: PCI Slot, AGP.

Onchip USB Controller

This setting allows you to activate the onchip USB controller . A vailable settings:
All Disabled, All enabled, 1 USB Port, 2 USB Port.

USB Keyboard/Mouse Support

Set to enabled if you need to use a USB keyboard/mouse and the Operating
System does not support or have any USB drivers installed, such as DOS or
SCO Unix. Available settings: Disabled, Enabled.

Chapter 3

3-22

Power Management Setup

The Power Management Setup allows you to configure you system to most
effectively save energy while operating in a manner consistent with your own
style of computer use.

ACPI Function

This item is to activate the ACPI (Advanced Configuration and Power Man­agement Interface) Function. If your operating system is ACPI-aware, such as
W indows 98SE/2000/ME, select Enabled. Settings: Enabled and Disabled.

Sleep State

This item specifies the power saving modes for ACPI function. Options are:

S1/POS The S1 sleep mode is a low power state. In this state, no

system context (CPU or chipset) is lost and hardware
maintains all system context.

S3/STR The S3 sleep mode is a power-down state in which power

is supplied only to essential components such as main

memory and wake-capable devices and all system
contextis saved to main memory. The information stored
inmemory will be used to restore the PC to the previous

state when an “wake up” event occurs.

S1 & S3 Supports both S1 and S3 sleep modes.

BIOS Setup

3-23

Power Management Option

This item is used to select the degree (or type) of power saving and is related
to these modes: Suspend Mode and HDD Power Down. There are three op­tions for power management:

Min Saving Minimum Power Management. Suspend Mode = 1 Hour,

and HDD Power Down = 15 Min.

Max Saving Maximum Power Management. Suspend Mode = 1 Min,

and HDD Power Down = 1 Min.

User Define Allows end users to configure each mode separately.

HDD Power Down

If HDD activity is not detected for the length of time specified in this field, the
hard disk drive will be powered down while all other devices remain active.
Settings are Disable and 1 through 15 Min.

Doze Mode

After the selected period of system inactivity, the CPU clock runs at slower
speed while all other devices still operate at full speed. Settings are Disable, 1
Min, 2 Min, 4 Min , 6 Min , 8 Min, 10 Min, 20 Min, 30 Min, 40 Min and 1 Hour.

Suspend Mode

After the selected period of system inactivity, all devices except the CPU shut
off. Settings are Disabled, 1 Min, 2 Min, 4 Min, 8 Min, 12 Min, 20 Min, 30
Min, 40 Min and 1 Hour.

PM Control by APM

Setting to Yes will activate an Advanced Power Management (APM) device to
enhance Max Saving mode and stop CPU internal clock. Setting options: Yes,
No.

MODEM Use IRQ

Name the interrupt request (IRQ) line assigned to the modem (if any) on your
system. Activity of the selected IRQ always awakens the system. Settings are
3, 4, 5, 7, 9, 10, 11 and NA.

Soft-Off by PWRBTN

This feature allows users to configure the power button function. Settings are:

Instant-Off The power button functions as a normal power-on/-

off button.

Chapter 3

3-24

Delay 4 Sec. When you press the power button, the computer en-

ters the suspend/sleep mode, but if the button is
pressed for more than four seconds, the computer is
turned off.

Power/Sleep LED

This setting determines how Power LED on the case indicates the sleep state.
Settings are:

Single LED The Power LED blinks to indicate the sleep state.
Dual LED The Power LED changes its color to indicate the sleep

state.

IRQ/Event Activity Detect

Press <Enter> to enter the sub-menu and the following screen appears:

PS2KB W akeup Select, PS2KB Wakeup from S3, PS2MS W akeup from
S3, USB Resume from S3, VGA, LPT & COM, HDD & FDD, PCI Mas­ter , W ake Up On LID, PowerOn by PCI Card, Modem Ring Resume

These fields specify whether the system will be awakened from power
saving modes when activity or input signal of the specified hardware
peripheral or component is detected.

RTC Alarm Resume

The field is used to enable or disable the feature of booting up the system
on a scheduled time/date.

BIOS Setup

3-25

Date (of Month)

The field specifies the date for RTC Alarm Resume. Settings: 0~31.

Resume Time (hh:mm:ss)

The field specifies the time for RTC Alarm Resume. Format is <hour>
<minute><second>.

IRQs Activity Monitoring

Press Enter to enter the sub-menu and the following screen appears:

Primary INTR

Selecting ON will cause the system to wake up from power saving modes
if activity is detected from any enabled IRQ channels.

IRQ3~IRQ15

Enables or disables the monitoring of the specified IRQ line. If set to
Enabled, the activity of the specified IRQ line will prevent the system
from entering power saving modes or awaken it from power saving modes.

Note: IRQ (Interrupt Request) lines are system resources allocated to
I/O devices. When an I/O device needs to gain attention of the operat­ing system, it signals this by causing an IRQ to occur. After receiving
the signal, when the operating system is ready, the system will inter­rupt itself and perform the service required by the I/O device.

Chapter 3

3-26

PNP/PCI Configurations

This section describes configuring the PCI bus system. PCI, or Personal Com-
puter Interconnect, is a system which allows I/O devices to operate at speeds
nearing the speed the CPU itself uses when communicating with its own spe­cial components. This section covers some very technical items and it is
strongly recommended that only experienced users should make any changes
to the default settings.

PNP OS Installed

When set to Yes, BIOS will only initialize the PnP cards used for booting (VGA,
IDE, SCSI). The rest of the cards will be initialized by the PnP operating system
like Windows® 95 or 98. When set to No, BIOS will initialize all the PnP cards.
So, select Yes if the operating system is Plug & Play aware.

Reset Configuration Data

Normally, you leave this field Disabled. Select Enabled to reset Extended Sys­tem Configuration Data (ESCD) when you exit Setup if you have installed a
new add-on and the system reconfiguration has caused such a serious conflict
that the operating system can not boot. The settings are: Enabled and Disa-
bled.

Resource Controlled By

The Award Plug and Play BIOS has the capacity to automatically configure all
of the boot and Plug and Play compatible devices. However, this capability
means absolutely nothing unless you are using a Plug and Play operating

BIOS Setup

3-27

system such as Windows 95/98. If you set this field to “manual” choose spe­cific resources by going into each of the sub menu that follows this field (a sub
menu is preceded by a “”). The settings are: Auto (ESCD), Manual.

IRQ Resources

The items are adjustable only when Resources Controlled By is set to Manual.
Press <Enter> and you will enter the sub-menu of the items. IRQ Resources list
IRQ 3/4/5/7/9/10/11/12/14/15 for users to set each IRQ a type depending on the
type of device using the IRQ. Settings are:

PCI Device For Plug & Play compatible devices designed for PCI

bus architecture.

Reserved The IRQ will be reserved for further request.

PCI/VGA Palette Snoop

When set to Enabled, multiple VGA devices operating on different buses can
handle data from the CPU on each set of palette registers on every video
device. Bit 5 of the command register in the PCI device configuration space is
the VGA Palette Snoop bit (0 is disabled). For example, if there are two VGA
devices in the computer (one PCI and one ISA) and the:

The setting must be set to Enabled if any ISA bus adapter in the system
requires VGA palette snooping.

Assign IRQ For VGA/USB/ACPI

The settings specify IRQ for each of the hardware components. Auto allows
BIOS to determine the IRQ automatically.

VGA Palette Snoop

Bit Setting Action

Disabled Data read or written by the CPU is only directed to the PCI

VGA device’ s palette registers.

Enabled Data read or written by the CPU is directed to both the PCI

VGA device’s palette registers and the ISA VGA device’s pal-

ette registers, permitting the palette registers of both VGA

devices to be identical.

Chapter 3

3-28

PC Health Status

This section displays the settings for monitoring the status of your CPU, fans,
and overall system status.

CPU W arning Temperatur e

If the CPU temperature reaches the upper limit preset in this setting, the warn­ing mechanism will be activated. This helps you to prevent the CPU overheat
problem.

Current System, CPU T emperature/Curr ent System, CPU Fan/Vcore/3.3V/
+5V/+12V/-12V/-5V/VBAT(V)/5VSB(V)

These items display the current status of all of the monitored hardware de­vices/components such as CPU voltages, temperatures and all fans’ speeds.

BIOS Setup

3-29

Frequency/Voltage Control

Auto Detect DIMM/PCI Clk

T o reduce the occurrence of electromagnetic interference (EMI), the BIOS de­tects the presence or absence of components in DIMM and PCI slots and
turns off system clock generator pulses to empty slots. The settings are: Ena-
bled, Disabled.

Spread Spectrum

When the motherboard’s clock generator pulses, the extreme values (spikes)
of the pulses creates EMI (Electromagnetic Interference). The Spread Spec­trum function reduces the EMI generated by modulating the pulses so that the
spikes of the pulses are reduced to flatter curves. If you do not have any EMI
problem, leave the setting at Disabled for optimal system stability and
performance. But if you are plagued by EMI, setting to Enabled for EMI
reduction. Remember to disable Spread Spectrum if you are overclocking be­cause even a 0.25% jitter can introduce a temporary boost in clockspeed of
25MHz (with a 1GHz CPU) which may just cause your overclocked processor
to lock up.

CPU Clock

This setting specifies the clock frequency of CPU host bus (FSB) and provides
a method for end-users to overclock the processor accordingly.

Chapter 3

3-30

CPU Ratio

This setting controls the multiplier that is used to determine the internal clock
speed of the processor relative to the external or motherboard clock speed.

BIOS Setup

3-31

Load Fail-Safe Defaults

This option allows users to restore all the BIOS settings to the default Fail-Safe
values. The Fail-Safe default settings are the settings set by the mainboard
manufacturer for stable running of the mainboard.

Pressing ‘Y’ loads the default Fail-Safe settings for stable system performance.

Chapter 3

3-32

This option on the main menu allows users to restore all the BIOS settings to
the default Optimized values. The Optimized Defaults are the default values
also set by the mainboard manufacturer for both optimized and stable perform­ance of the mainboard.

When you select Load Optimized Defaults, a message as below appears:

Pressing ‘Y’ loads the default values that are factory settings for optimal and
stable system performance.

Load Optimized Defaults

BIOS Setup

3-33

Set Supervisor/User Password

When you select this function, a message as below will appear on the screen:

Type the password, up to eight characters in length, and press <Enter>. The
password typed now will clear any previously set password from CMOS
memory . You will be prompted to confirm the password. Re-type the password
and press <Enter>. You may also press <Esc> to abort the selection and not
enter a password.

T o clear a set password, just press <Enter> when you are prompted to enter the
password. A message will show up confirming the password will be disabled.
Once the password is disabled, the system will boot and you can enter Setup
without entering any password.

When a password has been set, you will be prompted to enter it every time you
try to enter Setup. This prevents an unauthorized person from changing any
part of your system configuration.

Additionally, when a password is enabled, you can also have BIOS to request
a password each time the system is booted. This would prevent unauthorized
use of your computer. The setting to determine when the password prompt is
required is the Security Option of the Advanced BIOS Features menu. If the
Security Option is set to System, the password is required both at boot and at

Chapter 3

3-34

About Supervisor Password & User Password:

Supervisor password : Can enter and change the settings of

the setup menus.

User password: Can only enter but do not have the right

to change the settings of the setup
menus.

entry to Setup. If set to Setup, password prompt only occurs when trying to
enter Setup.

BIOS Setup

3-35

Save & Exit Setup

When you want to quit the Setup menu, you can select this option to save the
changes and quit. A message as below will appear on the screen:

Typing “Y” will allow you to quit the Setup Utility and save the user setup
changes to R TC CMOS.

Typing “N” will return to the Setup Utility .

Chapter 3

3-36

Exit Without Saving

When you want to quit the Setup menu, you can select this option to abandon
the changes. A message as below will appear on the screen:

T yping “Y” will allow you to quit the Setup Utility without saving any changes
to R TC CMOS.

Typing “N” will return to the Setup Utility .

Driver Setup

4-1

This chapter gives you detailed instructions on instal­lation & setup of VIA chipset & Realtek ALC201A
audio drivers. It consists of the following topics:

Note: You must install VIA chipset drivers first before
installing other drivers like audio or VGA drivers.

VIA Apollo P4X266A Chipset Drivers 4- 2
Realtek ALC201A Audio Driver 4- 7

Chapter 4. Driver Setup

Driver Setup

4

Chapter 4

4-2

VIA Apollo P4X266A Chipset Drivers

The VIA P4X266A chipset provides superior performance between the CPU,
DRAM, V-Link bus and AGP 8x graphics controller bus with pipelined, burst
and concurrent operation. With a highly integrated PCI/LPC controller, its
internal bus structure is based on 66MHz PCI bus that provides 2x bandwidth
compared to previous generation PCI/ISA bridge chips.

Features

• Integrated Ultra DMA 33/66/100 master mode PCI EIDE controller.

• Full featured Accelerated Graphics Port (AGP) controller

- Supports 533MHz 8x and 266MHz 4x transfer modes for AD and SBA
signaling.

- Pseudo-synchronous with the host CPU bus with optimal skew control.

- Windows 95 OSR-2 VXD and integrated Windows 98/NT5 miniport
driver support.

System Requirements

Computer Intel® Pentium® 4 processors
Monitor VGA Support, minimum 640 x 480 resolu-

tion

Operating system DOS 5.0 or higher, W indows® 95/98, Win-

dows® NT3.51 or 4.0, or OS/2®, Windows

®

2000, or Windows® ME

CD-ROM Double speed or higher
Chipset VIA Apollo P4X266A chipset

Driver Setup

4-3

Driver Installation for Windows® 98SE

1 . Insert the supplied CD disk into the CD-ROM drive.
2 . The CD will auto-run and the setup screen will appear.

3. Click on VIA Chipset Drivers and the screen will show VIA Service
Pack 4.XX.

4. Click Next and the screen will show a VIA Service Pack 1 README
dialog box.

5. Click Next and the screen will show four drivers: VIA A TAPI V endor

Support Driver, AGP VxD Driver, IRQ Routing Miniport Driver and
VIA INF Driver 1.XX. Select all four drivers and click on Next.

6 . The setup program will request you to choose Install VIA A TAPI V en-

dor Support Driver. Select Install and click Next to continue.

7 . Select Click to enable DMA Mode and click Next to continue.
8 . The setup program will request you to choose Install VIA AGP VxD in

T urbo mode, Install VIA AGP VxD in normal mode or Uninstall VIA
AGP VxD. Select Install VIA AGP VxD in turbo mode and click on
Next.

9 . Select Install VIA IRQ Routing Miniport Driver and click on Next.

10. The setup program will request you to choose whether to restart the
computer or not. Please select “Yes, I want to restart my computer now”
and click Finish. The computer will restart and complete the VIA Chipset
Drivers installation.

Chapter 4

4-4

Driver Installation for Windows® 2000

Note: Before installing VIA chipset driver, you should installing Win­dows 2000 Service Pack2 or the latest version.

1 . Insert the supplied CD disk into the CD-ROM drive.
2 . The CD will auto-run and the setup screen will appear.

3. Click on Via Chipset Drivers and the screen will show VIA Service
Pack 4.XX.

4. Click Next and the screen will show a VIA Service Pack 1 README
dialog box.

5. Click Yes and the screen will show three drivers: VIA PCI IDE Bus
Driver (Windows 2000), AGP VxD Driver and VIA INF Driver 1.XX.
Select all and click Next to proceed.

6. The screen will show a VIA PCI IDE Bus Driver dialog box. Select
Install and then click on Next.

7. The screen will show a VIA AGP Driver 4.XX dialog box. Select Install
AGP 4X/133 driver and click Next.

8. The setup program will request you to choose whether to restart the
computer or not. Please select “Yes, I want to restart my computer now”
and click Finish. The computer will restart and finish the VIA Chipset
Drivers installation.

One Touch Setup:

In Windows® 2000, you probably will see the One Touch Setup
button appear on the setup screen. Choosing the button will help
you install more than one driver into the system without going
through the installation process step by step and save a lot of
time. After clicking on One Touch Setup, a window will show up
listing what drivers will be installed. Install other drivers not
included by One Touch Setup manually if any.

Driver Setup

4-5

Driver Installation for Windows® ME

1 . Insert the supplied CD disk into the CD-ROM drive.
2 . The CD will auto-run and the setup screen will appear.

3. Click on Via Chipset Drivers and the screen will show VIA Service
Pack 4.XX.

4. Click Next and the screen will show a VIA Service Pack 1 README
dialog box.

5. Click Yes and the screen will show three drivers: VIA PCI IDE Bus
Driver (Windows 2000), AGP VxD Driver and VIA INF Driver 1.XX.
Select all and click Next to proceed.

6. The screen will show a VIA PCI IDE Bus Driver dialog box. Select
Install and then click on Next.

7. The screen will show a VIA AGP Driver 4.XX dialog box. Select Install
AGP 4X/133 driver and click Next.

8. The setup program will request you to choose whether to restart the
computer or not. Please select “Yes, I want to restart my computer now”
and click Finish. The computer will restart and finish the VIA Chipset
Drivers installation.

One Touch Setup:

In W indows® ME, you probably will see the One Touch Setup but-
ton appear on the setup screen. Choosing the button will help you
install more than one driver into the system without going through
the installation process step by step and save a lot of time. After
clicking on One Touch Setup, a window will show up listing what
drivers will be installed. Install other drivers not included by One
Touch Setup manually if any.

Chapter 4

4-6

Driver Installation for Windows® NT4.0

NOTE: Install Windows® NT4.0 Service Pack 6 or above before install-
ing the VIA drivers into Windows® NT.

1 . Insert the provided CD disk into the CD-ROM drive.
2 . The CD will auto-run and the setup screen will appear.

3. Click on VIA Chipset Drivers and the screen will show VIA Service
Pack 4.XX.

4 . Click Next and the screen will show the VIA Service Pack 1 README

dialog box.

5. Click Yes to proceed and then select Install to enable (Ultra) DMA for
IDE Driver.

6 . The Choose Destination Location dialog box appears. Click Next.
7 . The Select Program Folder dialog box appears. Click Next.
8 . Click on “Yes, I want to restart my computer” and then click Finish to

restart your computer and complete installation.

Driver Setup

4-7

Realtek ALC201A Audio Driver

The ALC201A is an 18-bit, full duplex AC'97 2.2 compatible stereo audio CODEC
designed for PC multimedia systems, including host/soft audio and AMR/
CNR based designs. ALC201A AC'97 CODEC incorporates proprietary con­verter technology to achieve high SNR greater than 90 dB. In addition, it sup­ports multiple CODEC extension with independent variable sampling rate and
built-in 3D effects. It also provides two pairs of stereo outputs with independ­ent volume controls, a mono output, and multiple stereo and mono inputs,
along with flexible mixing, gain and mute functions to provide a completely
integrated audio solution for PCs.

Features

• AC'97 2.2 Compatible & WHQL Compliant

• High Performance Converter Technology

• 18-bit Stereo Full-Duplex CODEC with Independent Variable Sampling

Rate

• Four Analog Line-Level Stereo Inputs for Connection from LINE, CD,

VIDEO and AUX

• T wo Analog Line-Level Stereo Inputs for Speakerphone and PC BEEP

• Two MIC Inputs w/ Software Selectable

• High Quality Differential CD Input

• True Stereo Line Level Outputs

• EAPD (External Amplifier Power Down) Control

• 3D Stereo Enhancement

• Multi-CODEC Extension

• SNR Greater Than 95 dB

• Line Output with 50mW/20ohm Driving Capability

• Headphone Jack-Detection to Mute LINE Output

• MC'97 Chain-In Allows for Multi-Channel Application

• Supports SPDIF-Out, Fully Compliant to AC'97 Specification Rev. 2.2

• Power Management Support

• Power Supply (Digital 3.3V/ Analog 5V)

• Meets Microsoft PC99 & WLP 2.0 Audio Requirements

48-Pin LQFP Package

Chapter 4

4-8

Driver Installation for Windows® 98/ME/2000/NT4.0

1 . Insert the provided CD_ROM disk into the CD-ROM drive.
2 . The CD will auto-run and the setup screen will appear.
3 . Click on ADV ANCED Sound Drivers and follow the on-screen instruc-

tions to complete the installation.

4 . After completion of the installation, please restart W indows system for

new driver installation. The system will install the device drivers
automatically.