VIA P4PA-UL User Manual

VIA Mainboard

User’s Manual

VIA P4PA - U &

VIA P4PA - UL

Version 1.0 - February 5th, 2002

P/N 99-51-010111

i

Copyright

Copyright by VIA Technologies 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 Warranty

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.

ii

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.

iii

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 95/98/98SE/2000 and Windows NT are registered trademarks of
Microsoft.
Netware is a registered trademark of Novell.
Award is a registered trademark of Award Software Inc.

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 and protect 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 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.

10. Never pour any liquid into the opening. Doing so could cause damage or
electrical 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 does not work well or does not work according to
the User’s Manual.
* The equipment has dropped or damaged
* The equipment has been visably damaged

12. DO NOT LEAVE THIS EQUIPMENT IN AN ENVIRONMENT UNCONDI­TIONED, STORAGE TEMPERATURE ABOVE 60
DAMAGE THE EQUIPMENT.

0

C (1400F), IT MAY

iv

Box Contents

• 1 x VIA Mainboard

• 1 x User’s manual

• 1 x Quick Installation Guide

• 1 x Floppy ribbon cable

• 1 x ATA-66/100/133 Hard drive ribbon cable

• 1 x 2 Port USB 2.0/1.1 Module

• 1 x Driver Utilities CD

• 1 x I/O Bracket

v

Contents

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

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

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

Connectors Guide ............................................................. 1-5

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

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

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

CPU Core Speed .............................................................. 2-3

CPU Fan Installation ........................................................ 2-3

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

DDR Module Installation .................................................. 2-6

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

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

ATX 12V Power Connector: AUX12V............................ 2-7

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

Mouse Connector: JMS1 .................................................. 2-8

Keyboard Connector: JKB1 ............................................. 2-8

USB Port Connectors....................................................... 2-9

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

Serial Port Connectors: COM 1 & COM 2.................... 2-10

MIDI/Game Connector .................................................. 2-10

Audio Port Connectors ................................................... 2-10

RJ45 NIC Port (optional) ............................................... 2-10

Connectors ..................................................................... 2-11

Floppy Disk Drive Connector: FDD ................................2-11

IrDA Infrared Module Connector: IR ............................. 2-11

Hard Disk Connectors: IDE1 & IDE2 ........................... 2-12

CD-In Connector: CD_IN ............................................. 2-13

Aux Line-In Connector: AUX_IN ................................. 2-13

vi

Modem-In Connector: Modem_IN ................................ 2-13

Fan Power Connectors: CPU/SYS/PWR FAN ............. 2-14

Case Connectors: F_PANEL ......................................... 2-14

Digital Audio Connector: SPDIF .................................... 2-16

PC Smart Card Reader: SCR_14P ................................ 2-16

USB pin-header: USB3/4 ............................................... 2-17

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

Jumpers .......................................................................... 2-18

Clear CMOS Jumper: CLEAR_CMOS ......................... 2-18

Slots ............................................................................... 2-19

AGP (Accelerated Graphics Port) Slot .......................... 2-19

PCI Slots ........................................................................ 2-19

CNR (Communication Network Riser) .......................... 2-19

PCI Interrupt Request Routing ....................................... 2-20

Chapter 3. 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 ......................................................3-13

Power Management Setup .............................................. 3-17

PNP/PCI Configurations ................................................. 3-22

PC Health Status............................................................. 3-24

Frequency/Voltage Control .............................................. 3-25

Load Fail-Safe Defaults ...................................................3-28

Load Optimized Defaults ................................................. 3-29

vii

Set Supervisor/User Password ........................................ 3-30

Save & Exit Setup........................................................... 3-32

Exit Without Saving ......................................................... 3-33

Chapter 4. Software Setup ................... 4-1

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

VIA Audio Driver ............................................................ 4-12

Realtek Network Driver .................................................. 4-13

ITE Smart Guardian Installation ....................................... 4-20

ITE Smart Guardian User’s Manual ................................. 4-22

viii

1

Specifications

Specifications

The VIA P4PA mainboard is based around the
VIA Apollo P4X266A chipset, which brings support
for high-performance DDR266 SDRAM to the Intel
Pentium® 4 platform. VIA’s advanced V-Link controller
brings optimal system efficiency by effectively dou­bling bandwidth between the chipset’s north and south
bridges. Designed for the latest 478-pin Pentium® 4
processors, these ATX sized mainboards are the per­fect choice for Pentium 4 based high- performance PCs,
servers and workstations.

This chapter includes the following sections:

®

Mainboard Specifications 1-2

Mainboard Layout 1-4

Connectors Guide 1-5

1-1

Chapter 1

Mainboard Specifications

CPU

• Supports Intel

• Supports 1.5GHz, 1.6GHz, 1.7GHz, 1.8GHz, 1.9GHz, 2GHz and upwards

Chipset

• VIA Apollo P4X266A chipset (VT8753 & VT8233A)

- Supports Intel® Pentium® 4 processors with 400MHz (100MHz QDR) CPU
Front Side Bus (FSB)

- AGP v2.0 compliant with 4x transfer mode

- High Bandwidth V-Link Client controller

- Integrated Hardware Sound Blaster/Direct Sound AC’97 audio

- Ultra DMA 66/100/133 master mode PCI EIDE controller

- ACPI 1.0B and APM 1.2 compliant

Main Memory

• 3 x 184-pin DDR DIMM slots

• Supports up to 3GB of DDR266 SDRAM (PC2100/PC1600)

• Supports 2.5v DDR266 SDRAM

Slots

• 1 x AGP (Accelerated Graphics Port) 4X slot

• 6 x PCI 2.2 32-bit PCI bus slots (supports 3.3v/5v PCI bus interface)

• 1 x CNR (Communication Network Riser) slot

®

Pentium® 4 processors in the 478 pin package

Onboard IDE

• Integrated IDE controller provides IDE HDD/CD-ROM with PIO, Bus Mas-

ter and Ultra DMA 66/100/133 operation modes

• Can connect up to four IDE devices

Onboard Peripherals

• 1 floppy port supports 1 x FDD (up to 2.88MB, Japan 3 Mode Floppy

Supported)

1-2

Specifications

• 2 x serial ports (COM 1 + COM 2)

• 1 x parallel port supports SPP/EPP/ECP mode

• 2 x USB 2.0/1.1 ports (plus 1 pin-headers for up to 2 additional connections)

• 1 x IrDA connector for SIR/CIR/ASKIR/HPSIR

• 1 x MIDI/Game port

• 1 x RJ45 NIC port (optional)

Audio

• S/W VIA VT1612A AC'97 Codec

BIOS

• Award Plug & Play BIOS

• Desktop Management Interface (DMI) function which records your

mainboard specifications

Dimension

• ATX Form Factor

• 30.5cm x 22.5cm

Mounting

• 6 mounting holes

1-3

Chapter 1

Mainboard Layout

Top: Mouse

Bottom: Keyboard

Top: Parallel port

Bottom: COM 1/COM 2

Top: Game port

Bottom:

Line-Out

Line-In

Mic

Top: RJ45 (optional)

Bottom: USB ports

CD_IN

AUX_IN

AUX12V

PWRFAN

Modem_IN

SPDIF

ATXPWR

Socket 478

CNR

AGP Slot

PCI Slot 1

PCI Slot 2

PCI Slot 3

PCI Slot 4

PCI Slot 5

PCI Slot 6

USB 3/4

BATT

CPUFAN

CLEAR_CMOS

SCR_14P

BIOS

IDE 1

SYSFAN

IR

FDD

IDE 2

F_PANEL

WOL

VIA P4PA - U & VIA P4PA - UL Mainboard

1-4

Specifications

Connectors Guide

Connectors Function Reference
ATXPWR ATX 20-pin power connector see p. 2-7
AUX12V ATX 12V power connector see p. 2-7

JMS1 Mouse connector see p. 2-8

JKB1 Keyboard connector see p. 2-8

USB Port Connectors Connecting to USB devices see p. 2-9

LPT1 Parallel port connector see p. 2-9

COM 1 & COM 2 Serial port connector see p. 2-10

MIDI/Game Connector Connecting to joystick or game pad see p. 2-10

Audio Port Connectors Line-Out/Line-In/Mic-In see p. 2-10

RJ45 NIC Port (optional) LAN port see p. 2-10

FDD Floppy disk drive connector see p. 2-11

IR IrDA Infrared Module connector see p. 2-11

IDE 1 & IDE 2 Hard disk connectors see p. 2-12

CD_IN CD-In connector see p. 2-13

AUX_IN AUX Line-In connector see p. 2-13
Modem_IN Modem-In connector see p. 2-13

CPUFAN/SYSFAN/PWRFAN Fan Power connectors see p. 2-14

F_PANEL Case connectors see p. 2-14

SPDIF Digital audio connector see p. 2-16

SCR_14P PC Smart Card Reader connector see p. 2-16

USB 3/4 USB pin-header see p. 2-17
WOL Wake-On LAN connector see p. 2-17

CLEAR_CMOS Clear CMOS jumper see p. 2-18

AGP Slot Connecting to AGP card see p. 2-19
PCI Slots Connecting to PCI cards see p. 2-19
CNR Slot Connecting to CNR card see p. 2-19

1-5

22

2

22

Installation

Installation

This chapter provides you with information
about hardware setup procedures. While installing
the mainboard, carefully hold the components and
closely follow the installation procedures. Some
components may be damaged if they are installed
incorrectly.

It is recommended to use a grounded wrist
strap before handling computer components. Static
electricity can damage some components.

This chapter contains the following sections:

CPU Installation 2-2

Memory Installation 2-5

Power Supply 2-7

Back Panel 2-8

Connectors 2-11

Jumpers 2-18

Slots 2-19

2-1

Chapter 2

CPU Installation

The VIA P4PA mainboard support the Intel® Pentium® 4 processor in the 478
pin package (PGA478). When installing the CPU, ensure the CPU has a large-
size heatsink and a cooling fan attached on the top to prevent overheating. If
the heatsink and cooling fan are not included with the CPU, contact your
dealer to purchase and install them before turning on the computer.

CPU Installation

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.

WARNING!

3. Hold the CPU down firmly,
then close the lever shut to
complete the installation.

Overheating will cause serious damage to the CPU
and system. Ensure the cooling fan and heatsink work
properly to protect the CPU from overheating.

2-2

Installation

CPU Core Speed

If CPU Clock = 100MHz

Core/Bus ratio = 18

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

= 100MHz x 18
= 1.8GHz

Overclocking

This mainboard is designed to support overclocking. However,

WARNING!

please make sure your components are able to tolerate such abnor­mal settings, before overclocking. Any attempt to operate beyond
product specifications is not recommended. We do not guarantee the
damages or risks caused by inadequate operation or operation beyond

CPU Fan Installation

As processor technology pushes to faster speeds and higher performance,
thermal management becomes increasingly important. To dissipate heat, you
MUST attach the CPU cooling fan and heatsink on top of the CPU. Follow the
instructions below to install the Heatsink/Fan:

1. Locate the CPU and its retention
mechanism on the mainboard.

Retention mechanism

2. Position the heatsink and fan onto the
retention mechanism.

2-3

Chapter 2

3. Mount the fan on top of the heatsink. Press down the fan firmly until its four clips
become wedged in the holes of the retention mechanism.

4. Press the two levers down to secure the fan. Each lever can be pressed down in only
ONE direction.

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

2-4

Installation

Memory Installation

The VIA P4PA mainboard provide 3 sockets for 184-pin, 2.5V DDR DIMM
with 6 memory banks. To operate properly, at least one DIMM module must
be installed.
You can install PC1600/PC2100 DDR SDRAM modules on the DDR DIMM
slots (DDR 1~3).
DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but
doubles the rate of transfer by transfering data twice per cycle. This is
achieved by transfering data on both the rising and falling edges of the
clock. Conventional SDRAM only uses the rising edge of the clock to
transfer data. Therefore, conventional SDRAM is called SDR (Single Data
Rate) SDRAM. 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. DDR SDRAM is also known as
SDRAM-II, DDR DRAM and DSDRAM (Double-Speed DRAM). Two types
of DDR are available currently: 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. High memory
bandwidth makes DDR an ideal solution for high performance PC,
workstations and servers.

Socket 478

DDR DIMM Slots

(DDR 1~3)

2-5

Chapter 2

DDR Module Installation

You can install either single sided or double sided 184-pin DDR DIMM
modules into DDR DIMM, depending on your requirements. Differing from
SDR DIMM, DDR DIMMs have only one notch on the center of the module.
The number of pins on either side of the breaks are also different. The
memory modules will only fit if placed in the correct orientation.
You can install DDR SDRAM modules in any of the following combinations:

Slot M emory M odule Total M emory

Slot 1

(Bank 0 & Bank 1)

Slot 2

(Bank 2 & Bank 3)

Slot 3

(Bank 4 & Bank 5)

M aximum System M emory Supported

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

64M B, 128M B,

256M B, 512MB , 1GB

64M B, 128M B,

256M B, 512MB , 1GB

64M B, 128M B,

256M B, 512MB , 1GB

64M B~1G B

64M B~1G B

64M B~1G B

64M B~3G B

Notch

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

notch is correctly aligned.

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

2-6

Installation

Power Supply

The VIA P4PA mainboard requires an ATX power supply for powering the
system. Before inserting the power supply connector, always make sure that
all components are installed properly to ensure that no damage will be
caused.

ATX 20-Pin Power Connector: ATXPWR

This connector is for the ATX power supply. To connect to the ATX power
supply, make sure the plugs of the power supply are inserted in the correct
orientation and the pins are properly aligned. Then, push down the plugs
firmly into the connector.

AUX12V

4

2

3

1

20

10

Socket 478

ATXPWR

11

1

ATX 12V Power Connector: AUX12V

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

ATXPWR Pin Definition

PIN SIGNAL

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

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

AUX12V Pin

PIN SIGNAL

1 GND
2 GND
3 12V
4 12V

2-7

Chapter 2

Back Panel

The Back Panel provides the following connectors:

Mouse

Keyboard

COM 1

Parallel

COM 2

Mouse Connector: JMS1

The VIA P4PA mainboard provides a
standard PS/2 mouse connector for at­taching a PS/2 mouse. You can plug a
PS/2 mouse directly into this connec­tor. The connector location and pin
assignments are as follows:

6

4

2

PS/2 Mouse (6-pin Female)

5

3

1

MIDI/Game RJ45

L-out

L-in

MIC

USB

Keyboard Connector: JKB1

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

6

21

PS/2 Keyboard (6-pin Female)

5

34

Pin Definition

PIN SIGNAL DESCRIPTION

1 Mouse DATA Mouse DATA
2 NC No connection
3 GND Ground
4 V CC +5V

5. Mouse Clock Mouse clock

6. N C No connection

Pin Definition

PIN SIGNAL DESCRIPTION

1 Keyboard DATA Keyboard DATA
2 N C No connection
3 GND Ground
4 V CC +5 V

5. Keyboard Clock Keyboard clock

6. N C No connection

2-8

Installation

USB Port Connectors

The VIA P4PA mainboard provides 2 USB ports (plus 1 pin-headers for up to 2
additional USB connections; see 2-17). USB-compatible devices can be plugged
directly into these ports.

5 6 7 8

1 2 3 4

PIN SIGNAL DESCRIPTION

1 V CC + 5V
2 -Data 0 Negative Data Channel 0
3 +Data 0 Positive Data Channel 0
4 GN D G roun d

5. VCC +5V

6. -Data 1 Negative Data Channel 1

7. +Data 1 Positive Data Channel 1

8. GN D Gro und

USB Ports

Parallel Port Connector: LPT1

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

Pin Definition

Pin Definition

13

1

1425

PIN SIGNAL DESCRIPTION

1 STROBE Strobe
2 DATA0 Data0
3 DATA1 Data1
4 DATA2 Data2
5 DATA3 Data3
6 DATA4 Data4
7 DATA5 Data5
8 DATA6 Data6
9 DATA7 Data7
10 ACK# Acknowledge
11 BUSY Busy
12 PE Paper End
13 SELECT Select
14 AUTO FEED# Automatic Feed
15 ERR# Error
16 INIT# Initialize Printer
17 SLIN# Select In
18 GN D Ground
19 GN D Ground
20 GN D Ground
21 GN D Ground
22 GN D Ground
23 GN D Ground
24 GN D Ground
25 GN D Ground

2-9

Chapter 2

Serial Port Connectors: COM 1 & COM 2

The mainboard offers two 9-pin male Serial Port connectors (COM 1 and COM

2) . You can attach a serial mouse or other serial devices directly to these ports.

Pin Definition

1 2 3 4 5

6 7 8 9

9-Pin Male DIN Connectors

PIN SIGNAL DESCRIPTION

1 DC D Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DT R Data Terminal Ready

5. GND Ground

6. DSR Data Set Ready

7. RTS Request To Send

8. CTS Clear To Send

9. RI Ring Indicate

MIDI/Game Connector

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

Audio Port Connectors

Line-Out is a connector for speakers or

headphones. The Line-In connector
can be used for an external CD player,
tape player, or other audio devices. The
Mic-In connector is for connecting mi­crophones.

Line Out

1/8” Stereo Audio Connectors

Line In MIC

RJ45 NIC Port (optional)

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

2-10

Installation

Connectors

The VIA P4PA mainboard provides pin-header connectors for FDD, IDE
HDD, case, modem, LAN, USB Ports, IR module and the CPU/Power/System
FAN.

Floppy Disk Drive Connector: FDD

The standard floppy disk drive connector supports 360K, 720K, 1.2M,

1.44M, 2.88M and Japan 3 mode floppy disk types.

Socket 478

FDD

IrDA Infrared Module Connector: IR

This connector allows you to connect an IrDA Infrared module. You must
configure the setting through the BIOS setup to activate the IR function.

Pin Definition

PIN SIGNAL

1 VCC
2 NC
3 IRRX
4 GND
5 IRTX

1

IR

Socket 478

5

2-11

Chapter 2

Hard Disk Connectors: IDE1 & IDE2

The VIA P4PA mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 33/66/
100/133 controller that provides PIO mode 0~4, Bus Master, and Ultra DMA 33/
66/100/133 functions. You can connect up to four hard disk drive, CD-ROM,
LS-120 and other devices. These connectors utilize the provided IDE hard disk
cable.

Socket 478

IDE 1

IDE 2

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 config-
ure 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.

2-12

CD-In Connector: CD_IN

This connector is for the CD-ROM audio connector.

Aux Line-In Connector: AUX_IN

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

Modem-In Connector: Modem_IN

This connector is for a modem with internal audio connector.

Socket 478

CD_IN

CD_R

CD_GND

CD_L

Installation

AUX_R

AUX_L

AUX_IN

GND

Modem_IN

PHONE_IN

GND

MONO_OUT

2-13

Chapter 2

Fan Power Connectors: CPU/SYS/PWR FAN

The CPUFAN (CPU fan), SYSFAN (system fan) and PWRFAN (power fan) run
on +12V and maintain system cooling. When connecting the wire to the
connectors, always be aware 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. Both CPU and System fan connectors have sensors to detect fan speed,
but the power fan does not have sensor.

SENSOR

+12V
GND

CPUFAN

Socket 478

GND

+12V

SENSOR

PWRFAN

SENSOR
+12V

GND

SYSFAN

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

Case Connectors: F_PANEL

The case connector block F_PANEL allow you to connect to the Power Switch,
Reset Switch, Power LED, HDD LED and SLED on the case.

2-14

Installation

Socket 478

Pin Definition

PIN SIGNAL PIN SIGNAL

1 PWR_LED+ 2 HD_LED+

3 PWR_LED+ 4 HD_LED-

5 PWR_LED- 6 PW+

7 SPEAKER+ 8 PW-

9 NC 10 RESET+

11 NC 12 RESET-

13 SPEAKER- 14 SLED+

15 NC 16 SLED-

1516

21

Power Switch

Connect to a 2-pin push button switch. Pressing this button will turn the
system power on or off.

Reset Switch

The 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 LED is light when the system is power on. If the system is in S1 (POS ­Power On Suspend) or S3 (STR - Suspend To RAM) state, the LED will blink.

HDD LED

HDD LED shows the activity of a hard disk drive. Avoid turning the power off
while HDD LED is lit. Connect the HDD LED from the system case to this pin.

SLED

The SLED is light when the system is in the S1 (POS - Power On Suspend)
state.

Speaker

The speaker from the system case is connected to this pin.

2-15

Chapter 2

Digital Audio Connector: SPDIF

The SPDIF output provides digital audio to external speakers or compressed
AC3 data to an external Dolby Digital Decoder. The feature is available only
with stereo system which has digital output function.

Socket 478

+5V

SPDIF

GND

SPDIF

PC Smart Card Reader: SCR_14P

This connector accommodates a Smart Card Reader that allows you to conve­niently make transactions such as financial, health care, telephony, or traveling
services through a Smart Card user interface software.

SCR_14P Pin Definition

PIN SIGNAL

1 VCC
3NC
5 SCRFET#
7 SCRCLK

9. RFU

11. GND

13. NC

PIN SIGNAL

2 LED
4NC
6 SCRREST#
8 RFU

10. SCRIO

12. SCRPRES#

14. N C

Socket 478

2

14

SCR_14P

1

13

2-16

Installation

USB pin-header: USB3/4

The mainboard provides 1 front USB pin-header connector, allowing up to 2
additional USB ports. Please plug the USB 2-port module onto this pin­header.

Socket 478

USB 3/4 Pin Definition

PIN SIGNAL PIN SIGNAL

1 VCC 2 VCC

3 USB0- 4 USB1-

5 USB0+ 6 USB1+

7 GND 8 GND

9 NC 10 GND

1

9

USB 3/4

10

2

Wake-On LAN Connector: WOL

This connector allows you to connect a network card with the Wake-On
LAN function. The connector will power up the system when a signal is
received through the network card.

Socket 478

WOL

GND

+5VSB

2-17

Chapter 2

Jumpers

The VIA P4PA mainboard provides jumpers for setting the mainboard’s func­tions. This section will explain how to change settings for your mainboard’s
functions through the use of the jumpers.

Clear CMOS Jumper: CLEAR_CMOS

The onboard CMOS RAM stores system configuration data and has an onboard
battery power supply. The long-life battery has a lifetime of at least 5 years. If
you want to clear the system configuration data from the CMOS RAM, use the
CLEAR_CMOS (Clear CMOS jumper). Follow the instructions below to clear
the data:

Socket 478

WARNING!

1

CLEAR_CMOS

3

1

Keep CMOS

3

1

Clear CMOS

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

2-18

Installation

Slots

The mainboard provides six 32-bit Master PCI bus slots, one AGP4X slot and
one CNR slot.

Socket 478

AGP Slot

PCI Slots

CNR Slot

AGP (Accelerated Graphics Port) Slot

The AGP4X 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 three levels of throughputs: 1x (266MB/s), 2x (533MB/
s) and 4x (1.07GB/s).

PCI Slots

The six PCI slots allow you to insert expansion cards to meet your needs.
When adding or removing PCI expansion cards, ensure 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) Slot

The CNR slot allows you to insert a CNR expansion card. 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 mainboard’s
chipset.

2-19

Chapter 2

PCI Interrupt Request Routing

IRQ allows devices to send interrupt signals to the microprocessor. The PCI
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 B# INT C# INT D# INT A#

PCI Slot 2 INT C# INT D# INT A# INT B#

PCI Slot 3 INT D# INT A# INT B# INT C#

PCI Slot 4 INT A# INT B# INT C# INT D#

PCI Slot 5 INT B# INT C# INT D# INT A#

PCI Slot 6 INT C# INT D# INT A# INT B#

2-20

33

3

33

BIOS Setup

BIOS Setup

This chapter gives you detailed explaination of each BIOS setup
functions. It consists of the following topics:

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 3-13

Power Management Setup 3-17

PNP/PCI Configurations 3-22

PC Health Status 3-24

Frequency/Voltage Control 3-25

Load Fail-Safe Defaults 3-28

Load Optimized Defaults 3-29

Set Supervisor/User Password 3-30

Save & Exit Setup 3-32

Exit Without Saving 3-33

3-1

Chapter 3

Entering Setup

Power on the computer and press DEL straight away to enter BIOS setup menu.
If you missed the BIOS setup entry point, you may restart the system and try
again.

Control Keys

<↑>

<↓>

<←>

<→>

<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

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

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

<F7> Load Optimized defaults

<F10> Save all the CMOS changes and exit

Move to the previous item

Move to the next item

Move to the item in the left hand

Move to the item in the right hand

Setup Menu

Setup Menu

Option Page Setup Menu

3-2

BIOS Setup

Getting Help

After entering the BIOS setup menu, the Main Menu appears.

Main Menu

The main menu displays all BIOS setup categories. Use the control keys (LK) to
select any item/sub-menu. Description of the selected/highlighted category is
displayed at the bottom of the screen.

Sub-Menu

If you find a right pointer symbol (as shown in
the right view) appears on the left of certain
fields, this means a sub-menu is available. The
sub-menu contains additional options. You can
use control keys (LK) to highlight the field and
press <Enter> to enter the sub-menu. To return
from the sub-menu press <Esc >.

General Help <F1>

The BIOS setup program provides a General Help screen. You can call up this
screen from any menu/sub-menu by pressing <F1>. The help screen displays the
keys for use and navigate the BIOS setup. Press <Esc> to exit the help screen.

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

3-3

Chapter 3

The Main Menu

The Main Menu contains twelve setup functions and two exit choices. Use
arrow keys to select the items and press <Enter> to accept or enter the sub­menu.

Standard CMOS Features

Use this menu to set 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 set chipset specific features and optimize system performance.

Integrated Peripherals

Use this menu to set onboard peripherals features.

Power Management Setup

Use this menu to set onboard power management functions.

PnP/PCI Configurations

Use this menu to set the PnP and PCI configurations.

3-4

BIOS Setup

PC Health Status

This menu shows the PC health status.

Frequency/Voltage Control

Use this menu to set the system frequency and voltage control.

Load Fail-Safe Defaults

Use this menu to load the BIOS default settings for minimal and stable system
operations.

Load Optimized Defaults

Use this menu to load BIOS default settings for optimal and high performance
system operations.

Set Supervisor Password

Use this menu to set supervisor password.

Save & Exit Setup

Save BIOS setting changes and exit setup.

Exit Without Saving

Abandon all BIOS setting changes and exit setup.

3-5

Chapter 3

Standard CMOS Features

Use the arrow keys to highlight the item and use the <PgUp> or <PgDn> keys
to select the value you desire for each item.

Date

The date format is <Day><Month><Date><Year>.

Day - day of the week, for example Friday. Read-only.
Month - the month from Jan to Dec.
Date - the date from 1 to 31.
Year - the year, range from 1999 to 2098.

Time

The time format is <Hour><Minute><Second>.

Drive A

Set the type of floppy drive installed. Available options are
in. 1, .2M, 5.25 in. 7, 20K, 3.5 in. 1, .44M, 3.5 in. 2, .88M, 3.5 in.

Floppy 3 Mode Support

If enabled Drive A is define to 3 Mode. Floppy 3 Mode supports older Japanese
Floppy. Settings: Disabled and Enabled.

3-6

None, 360K, 5.25

BIOS Setup

Halt On

Determine the system behaviour if an error is detected at boot. Settings are:

All Errors System halts when any error is detected.
No Errors System does not halt for any error.
All, But Keyboard System halts for all error (except keyboard error).
All, But Diskette System halts for all error (except diskette error).
All, But Disk/Key System halts for all error (except disk/keyboard error)

IDE Primary Master/Slave and Secondary Master/Slave

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

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.
Select Auto whenever possible. If you select Manual, make sure the information
provided is from your hard disk vendor or system manufacturer.

IDE Primary Slave The settings are None, Auto, Manual.
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.
PIO Mode The settings are Mode 0/1/2/3/4, Auto.
Ultra DMA Mode The settings are Disabled and Auto.

3-7

Chapter 3

Advanced BIOS Features

Virus Warning

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

CPU L1 & L2 Cache

Turn on or off the CPU Level 1 and Level 2 cache. Settings: Enabled and
Disabled.

CPU L2 Cache ECC Checking

Set the ECC (Error-Correcting Code) feature for Level 2 cache. Facilitates error
detection/correction when data passes through Level 2 cache. Settings: Enabled
and Disabled.

Quick Power On Self Test

Shorten Power On Self Test (POST) cycle and enable shorter bootup time.
Allow BIOS to skip some check items during POST. Settings: Enabled and
Disabled.

First/Second/Third Boot Device

Set the boot device sequence as BIOS attempts to load the disk operating
system. The settings are:

3-8

BIOS Setup

Floppy The system will boot from floppy drive.
LS120 The system will boot from LS-120 drive.
HDD-0 The system will boot from first HDD.
SCSI The system will boot from SCSI.
CD-ROM The system will boot from CD-ROM.
HDD-1 The system will boot from second HDD.
HDD-2 The system will boot from third HDD.
HDD-3 The system will boot from fourth HDD.
ZIP100 The system will boot from ATAPI ZIP drive.
LAN The system will boot from network drive.
Disabled Disable this sequence.

Boot Other Device

Enable the system to boot from other devices if the system fails to boot from
the First/Second/Third boot device. Settings: Enabled and Disabled.

Boot Up Floppy Seek

Set floppy seek during POST, BIOS will determine whether the floppy is 40 or
80 tracks. Settings: Enabled and Disabled.

Boot Up NumLock Status

Set the NumLock status when the system is powered on. “On” will turn key
pad into number keys, and “Off” will turn key pad into arrow keys. Settings: On
and Off.

Typematic Rate Setting

Set the typematic rate and delay. Settings: Enabled and Disabled.

Typematic Rate (Chars/Sec)

When 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.

Typematic Delay (Msec)

When Typematic Rate Setting is enabled. 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.

3-9

Chapter 3

Security Option

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

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.

OS Select For DRAM > 64MB

Allows the OS/2

®

operating system to run with DRAM greater than 64MB. If

you are not using OS2 please set to “Non-OS2”. Settings: Non-OS2 and OS2.

Display Full Screen Logo

Show full screen logo during BIOS bootup process. Settings:
and

Disabled

.

Enabled

Display Small Logo

Show small energy star logo during BIOS bootup process. Settings: Enabled
and Disabled.

3-10

BIOS Setup

Advanced Chipset Features

The Advanced Chipset Features menu is used for optimizing the chipset
functions.

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

AGP Aperture Size

This setting controls just how much memory space can be allo­cated to AGP for video purposes. The aperture is a portion of the
PCI memory address range dedicated to graphics memory address
space. Host cycles that hit the aperture range are forwarded to the
AGP without any translation. Settings: 4MB, 8MB, 16MB, 32MB,
64MB, 128MB, and 256MB.

AGP Mode

This motherboard supports the AGP 4x interface. When the AGP
4x video card is used, it can transfer video data at 1066MB/s. AGP
4x is backward-compatible, leave the default 4x mode on if unsure.
When set to 1x mode, the maximum transfer rate it at 266MB/s, and
2x mode transfers data at 533MB/s. Settings: 4X, 2X and 1X.

AGP Driving Control

The setting is used to adjust AGP driving force. Selecting Manual
allows you to type a AGP driving force in
strongly suggested to select Auto to avoid causing any system
error. Settings: Auto and Manual.

3-11

AGP Driving Value. It is

Chapter 3

CPU to PCI POST Write

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
receive more data. Settings: Enabled and Disabled.

3-12

BIOS Setup

Integrated Peripherals

Onboard IDE Channel 1/2

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

IDE Prefetch Mode

This 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. Enabled ena­bles IDE controller to use block mode; Disabled allows the controller to
use standard mode.

IDE HDD Block Mode

This 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. Enabled ena­bles IDE controller to use block mode; Disabled allows the controller to
use standard mode.

Display Card Priority

This setting specifies which VGA card is your primary graphics adapter.
Settings: PCI Slot and AGP.

3-13

Chapter 3

Onboard LAN Boot Rom

Decide whether to invoke the boot ROM of the onboard LAN Chip. Set­tings: Enabled and Disabled.

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 and Disabled.

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. Settings: Auto and Dis-
abled.

USB Keyboard Support

Enable USB Keyboard Support for DOS and Windows 95. Settings: Auto
and Disabled.

USB Mouse Support

Enable USB Mouse Support for DOS and Windows 95. Settings: Auto
and Disabled.

3-14

BIOS Setup

SuperIO Device

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

Onboard FDC Controller

Enable the onboard floppy controller. Select “Enabled” when you have
installed a floppy disk drive. Settings: Enabled and Disabled.

Onboard Serial Port 1/2

Set the base I/O port address and IRQ for the onboard serial port A/serial
port B. Selecting Auto allows BIOS to automatically determine the correct
base I/O port address. Settings: Disabled, 3F8/IRQ4, 2F8/IRQ3, 3E8/
IRQ4, 2E8/IRQ3 and Auto.

Serial 2 Mode Select

The field specifies the operation mode for serial port “COM B”. If the mode
selected is not “Serial Port” then “COM B” will be disabled in order for other
device to take effect. Settings are:

Serial Port: RS-232C Serial Port
IrDA(Infrared): IrDA-compliant Serial Infrared Port
ASKIR(Infrared): Amplitude Shift Keyed Infrared Port
SmartCard Reader: SmartCard Reader

UR2 Duplex Mode

Set the operating mode of IR transmission/reception. Under Full Duplex

3-15

Chapter 3

mode, synchronous, bi-directional transmission/reception is allowed.
Under Half Duplex mode, only asynchronous, bi-directional transmis­sion/reception is allowed. Settings: Full and Half.

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

Set the parallel port mode. To operate the onboard parallel port as Standard
Parallel Port, choose “SPP.” To operate the onboard parallel port in the
EPP mode, choose “EPP.” By choosing “ECP”, the onboard parallel port
will operate in ECP mode. Choosing “ECP + EPP” will allow the onboard
parallel port to support both the ECP and EPP modes simultaneously.
Settings are:
SPP : Standard Parallel Port
EPP : Enhanced Parallel Port
ECP : Extended Capability Port
ECP + EPP: Extended Capability Port + Enhanced Parallel Port

ECP Mode Use DMA

ECP utilises a DMA channel. This field is only available if Parallel Port
Mode is set to “ECP”. Select DMA channel for ECP use. Settings: 1 and 3.

Game Port Address

Set I./O port address for onboard game port. Settings: Disabled, 201 and 209.

Midi Port Address

Set I./O port address for onboard midi port. Settings: Disabled, 330 and 300.

Midi Port IRQ

Set an IRQ for the onboard midi port. This field is only available if midi port is
not “Disabled”. Settings: 5 and 10.

3-16

BIOS Setup

Power Management Setup

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

ACPI Function

Activate the ACPI (Advanced Configuration and Power Management
Interface) Function. If your operating system is ACPI-aware (i.e. Win­dows 98/98SE/ME/2000/XP) select Enabled. Settings: Enabled and
Disabled.

ACPI Suspend Type

Set the power saving mode for ACPI function. Settings are:

S1/POS - S1/Power On Suspend (POS) is a low power state. In this state, no
system context (CPU or chipset) is lost and hardware maintains all system
context.
S3/STR - S3/Suspend To RAM (STR) is a power-down state. In this state,
power is supplied only to essential components such as main memory and
wakeup-capable devices. The system context is saved to main memory, and
context is restored from the memory when a “wakeup” event occurs.
S1 & S3 - Depends on OS to select S1 or S3.

HDD Power Down

Set the time to power down HDD after hard disk inactivity. Settings:
Disable and 1~15 Min.

3-17

Chapter 3

Power Management Timer

Set the idle time before system enters power saving mode. ACPI OS such
as Windows XP will override this option. Settings: Disable and 1/2/4/6/
8/10/20/30/40 min and 1 hr.

Video Off Option

Select whether or not to turn off the screen when system enters power
saving mode, ACPI OS such as Windows XP will override this option.
Settings are:
Always On - The screen is always on even when system enters power
saving mode.
Suspend -> Off - The screen is turned off when system enters power
saving mode.

Power Off by PWRBTN

This field configures the power button function. Settings are:
Instant-Off - The power button functions as a normal power-on/-off
button.
Delay 4 Sec - The system is turned off if power button is pressed for more
than four seconds.

AC Loss Auto restart

The field defines how the system will act after an AC power loss during
system operation. Choose the system power state when the AC power is
back. Settings are:

Off Keep the system in off state until power button is pressed.
On The system automatically restarts when AC power is back.

3-18

BIOS Setup

Peripheral Activities

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

VGA Event

Decide whether or not the power management unit should monitor VGA
activities. Settings: Off and ON.

LPT & COM Event

Decide whether or not the power management unit should monitor parallel port
(LPT) and serial port (COM) activities. Settings: None, LPT, COM and LPT/

COM.

HDD & FDD Event

Decide whether or not the power management unit should monitor hard disks
and floppy drives activties. Settings: Off and On.

PCI Master Event

Decide whether or not the power management unit should monitor PCI master
activties. Settings: Off and On.

PS2KB Wakeup Select

Select between Password or Hotkey, Once password is selected, press ENTER
to change Password. Maximum number of character is 8. Settings: Password
and Hot key.

3-19

Chapter 3

PS2KB Wakeup from suspend

Select which Hot-Key to wake-up the system from power saving mode.
Settings: Disabled, Ctrl+F1, Ctrl+F2, Ctrl+F3, Ctrl+F4, Ctrl+F5, Ctrl+F6,

Ctrl+F7, Ctrl+F8, Ctrl+F9, Ctrl+F10, Ctrl+F11, Ctrl+F12, Power, Wake and
Any Key.

USB Resume from S3

Decide whether or not the USB devices can wake the system from suspend
state. Settings: Disabled and Enabled.

PowerOn by PCI Card

Decide whether or not any PCI card can power up the system or resume from
suspend state. Such PCI cards include LAN, onboard USB ports, etc. Settings:
Disabled and Enabled.

Modem Ring Resume

Decide whether or not any Ring-In signals from Modem can wake up the
system from suspend state. Settings: Disabled and Enabled.

RTC Alarm Resume

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

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>.

3-20

BIOS Setup

IRQs Activities

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 IO device.

3-21

Chapter 3

PNP/PCI Configurations

This section describes the BIOS configuration of the PCI bus system. 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 98/98SE. When set to No, BIOS will
initialize all the PnP cards. Set to Yes the operating system is Plug & Play
capable. The settings: No and Yes.

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:
Enabled and Disabled.

Resource Controlled By

The BIOS can automatically configure all the boot and Plug and Play
compatible devices. Choose “Auto(ESCD)” if unsure, the BIOS will
automatically assign IRQ, DMA and memory base address fields. The
settings: Auto (ESCD) and Manual.

3-22

BIOS Setup

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:

PCI Device For Plug & Play compatible devices designed for PCI
bus architecture.
Reserved The IRQ will be reserved for further request.

Assign IRQ For VGA/USB

Assign IRQ for VGA and USB devices. Settings: Disabled and Enabled.

3-23

Chapter 3

PC Health Status

This section shows the status of your CPU, fan, warning for overall system
status.

Vcore, vTT 1.25V, 3.3V, Vcc(+5V), +12V, -12V, -5V, 5VSB, Current System
Temp, Current CPU Temperature, Current CPU Fan Speed, Current
System Fan Speed.

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

3-24

BIOS Setup

Frequency/Voltage Control

DRAM Clock

The chipset supports synchronous and asynchronous mode between host
clock and DRAM clock frequency. Settings: By SPD, 100MHz and 133MHz.

DRAM Timing

This setting determines whether DRAM timing is configured by reading 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. Settings:
Manual and By SPD.

SDRAM CAS Latency

Set the time between SDRAM read command and when the data actually
becomes available. Settings: 2 and 2.5.

Bank Interleave

Set the interleave mode of the SDRAM interface. Interleaving allows banks of
SDRAM to alternate their refresh and access cycles. One bank will undergo its
refresh cycle while another is being accessed. This improves performance of
the SDRAM by masking the refresh time of each bank. Settings: Disabled, 2
Bank and 4 Bank.

Precharge to Active (Trp)

Set the time from DRAM precharge to active state. Settings: 2T and 3T.

3-25

Chapter 3

Active to Precharge (Tras)

Set the time from active back to precharge state. Settings: 5T and 6T.

Active to CMD (Trcd)

Set the time from active state to command state. Settings: 2T and 3T.

DRAM Burst Len

This setting allows you to set the size for DRAM Burst-Length. The bigger
the size, the faster the system addresses memory. Settings: 4 and 8.

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. Settings: 2T Command
and 1T Command.

CPU Vcore Select

This setting allows you to adjust the CPU core voltage from 1.100V to

1.850V at 0.025 increment. Please note that it may be dangerous to adjust
the Vcore over 10% of original CPU specification. Setting options: Default,

1.100V to 1.850V.

DRAM Voltage

This setting allows you to set the appropriate DRAM voltage. Setting
options: 2.5V, 2.6V, 2.7V and 2.8V.

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

3-26

BIOS Setup

provides a method for end-users to overclock the processor accordingly.

If the CPU clock is set over the tolerance limit of the CPU, the mainboard will
show the following message “IMPROPER OVERCLOCKING SETTING,
SYSTEM IS RESETTING CPU CLOCK TO DEFAULT. Please re-enter BIOS
Setup and remember to save before quit!”. This feature protects the CPU from
damage due to overclocking.

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.

3-27

Chapter 3

Load Fail-Safe Defaults

This option on the main menu allows users to restore all the BIOS settings to
the default Fail Safe values. These values are set by the mainboard manufacturer
to provide a minimal and stable system.

When you select Load-Fail Safe Defaults, a message as below appears:

Pressing ‘Y’ loads the default BIOS values that provide a minimal and stable
system configuration.

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BIOS Setup

Load Optimized Defaults

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.

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Chapter 3

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.

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

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BIOS Setup

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.

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Chapter 3

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 RTC CMOS.

3-32

BIOS Setup

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:

Typing “Y” will allow you to quit the Setup Utility without saving any
changes to RTC CMOS.

Typing “N” will return to the Setup Utility.

3-33

44

4

44

Driver Setup

Software Setup

This chapter gives you detailed instructions on setup
of motherboard drivers and applications. It consists of
the following topics:

VIA Apollo P4X266A Chipset Drivers 4-2

VIA Audio Driver 4-12

Realtek Network Driver 4-13

ITE Smart Guardian Installation 4-20

ITE Smart Guardian User’s Manual 4-22

Note: You must install VIA chipset drivers first
before installing other drivers like audio or VGA
drivers. The applications will only function correctly
if the necessary drivers are already installed.

4-1

Chapter 4

VIA Apollo P4X266A Chipset Drivers

The VIA P4X266A chipset provides superior performance between the CPU,
DRAM, V-Link bus and AGP 4x graphics controller bus with pipelined, burst
and concurrent operation. With a highly integrated PCI/LPC controller, its in­ternal bus structure (V-Link) is based on 66MHz PCI bus that provides 2x
bandwidth compared to previous generation PCI/ISA bridge chips.

Features

• Integrated Ultra DMA 66/100/133 master mode PCI EIDE controller.

• Full featured Accelerated Graphics Port (AGP) controller

- Supports 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 98/98SE/2000

miniport driver support.

System Requirements

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

tion

Operating system Windows

or 4.0, Windows® ME, Windows® 2000, or
Windows® XP

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

®

95/98/98SE, Windows® NT3.51

4-2

Driver Setup

Driver Installation for Windows 98/98SE

1. Insert the supplied CD disc into the CD-ROM drive.

2. The CD should run automatically and the setup screen will appear. If not,
please run the “setup.exe” within the CD manually.

3. On the setup screen click on the Install VIA Chipset Drivers option to
install the VIA Service Pack 4.36V.

4. When the installation starts, click Next to view the VIA Service Pack
README.

5. Click Ye s to proceed.

4-3

Chapter 4

6. The screen now will show two installation options. Select Normally
Install to manually install every driver, else select Quickly Install to install

the drivers automatically. Click Next to continue, for Quickly Install users
please go to step 12.

7. The screen will now show four drivers:

VIA ATAPI Vendor Support Driver.
AGP VxD Driver.
IRQ Routing Miniport Driver.
VIA INF Driver.

Please select all four drivers and click on Next to continue.

4-4

Driver Setup

8. Select Install VIA ATAPI Vendor Support Driver and click Next to
continue.

9. Select Click to enable DMA Mode option and click Next to continue.

10. Select Install VIA AGP VxD in Turbo mode and click Next to continue.

11. Select Install VIA IRQ Routing Miniport Driver and click Next to
continue

12. After all chipset drivers are properly installed please select “Yes, I want
to restart my computer now.” and click on Finish to restart your computer
and complete the installation.

4-5

Chapter 4

Driver Installation for Windows 2000

1. Insert the supplied CD disc into the CD-ROM drive.

2. The CD should run automatically and the setup screen will appear. If not,
please run the “setup.exe” within the CD manually.

3. On the setup screen click on the Install VIA Chipset Drivers option to
install the VIA Service Pack 4.36V.

4. When the installation starts, click Next to view the VIA Service Pack
README.

5. Click Ye s to proceed.

6. The screen now will show two installation options. Select Normally
Install to manually install every driver, else select Quickly Install to install
the drivers automatically. Click Next to continue, for Quickly Install users
please go to step 10.

7. The screen now should show three drivers:

VIA PCI IDE Bus Driver.
AGP VxD Driver.
VIA INF Driver.

Please select all three drivers and click on Next to continue.

4-6

Driver Setup

8. Select Install VIA PCI IDE Bus Driver and click Next to continue.

9. Select Install AGP 4X/133 driver and click Next to continue.

10. After all chipset drivers are properly installed please select “Yes, I want
to restart my computer now.” and click on Finish to restart your computer
and complete the installation.

4-7

Chapter 4

Driver Installation for Windows XP

1. Insert the supplied CD disc into the CD-ROM drive.

2. The CD should run automatically and the setup screen will appear. If not,
please run the “setup.exe” within the CD manually.

3. On the setup screen click on the Install VIA Chipset Drivers option to
install the VIA Service Pack 4.36V.

4. When the installation starts, click Next to view the VIA Service Pack
README.

5. Click Ye s to proceed.

6. The screen now will show two installation options. Select Normally
Install to manually install every driver, else select Quickly Install to install
the drivers automatically. Click Next to continue, for Quickly Install users
please go to step 9.

7. The screen now should show two drivers:

VIA PCI IDE Bus Driver
VIA INF Driver

Please select the driver and click on Next to continue.

4-8

Driver Setup

8. The screen now should show one driver: Install VIA PCI IDE Bus
Driver. Please select the driver and click on Next to continue.

9. After all chipset drivers are properly installed please select “Yes, I want to
restart my computer now.” and click on Finish to restart your computer and

complete the installation.

4-9

Chapter 4

Driver Installation for Windows ME

1. Insert the supplied CD disc into the CD-ROM drive.

2. The CD should run automatically and the setup screen will appear. If not,
please run the “setup.exe” within the CD manually.

3. On the setup screen click on the Install VIA Chipset Drivers option to
install the VIA Service Pack 4.36V.

4. When the installation starts, click Next to view the VIA Service Pack
README.

5. Click Ye s to proceed.

6. The screen now will show two installation options. Select Normally
Install to manually install every driver, else select Quickly Install to install
the drivers automatically. Click Next to continue, for Quickly Install users
please go to step 11.

7. The screen now should show one driver:

VIA ATAPI Vendor Support Driver.
AGP VxD Driver.
VIA INF Driver.

Please select all three drivers and click on Next to continue.

8. Select Install VIA ATAPI Vendor Support Driver and click Next to
continue.

4-10

Driver Setup

9. Select Click to enable DMA Mode option and click Next to continue.

10. Select Install VIA AGP VxD in Turbo mode and click Next to continue.

11. After all chipset drivers are properly installed please select “Yes, I want
to restart my computer now.” and click on Finish to restart your computer
and complete the installation.

4-11

Chapter 4

VIA Audio Driver

Audio driver Installation for Windows 98/98SE/ME/2000/
NT4.0

1. Insert the supplied CD disc into the CD-ROM drive.

2. The CD should run automatically and the setup screen will appear. If not,
please run the “setup.exe” within the CD manually.

3. On the setup screen click on the Install VIA Audio Driver to install VIA
Audio Driver Setup Program V1.60a

4. Select Install driver. Click Next to continue.

5. After the audio driver is installed, select “Yes, I want to restart my
computer now”. Click Finish to restart your computer (Windows ME only).

4-12

Driver Setup

Realtek Network Driver

Network driver installation for Windows 98/98SE

1. Put the supplied CD in the CD ROM drive and right click the “My
Computer” icon on the desktop. Move mouse pointer to “Properties” item
and left click it.

2. The “System Properties” window is poped. Select the “Device Manager”
tab (left click the tab), then select the “PCI Ethernet Controller” and click
the “Properties” button.

4-13

Chapter 4

3. In the “PCI Ethernet Controller Properties” window, click the “Reinstall
Driver” button.

4. The “Update Device Driver Wizard” is invoked, then click the “next”
buttom.

5. Select “Display a list of all the drivers in a specific location, so you can
select the driver you want” item and click the “next” button.

4-14

Driver Setup

6. Select the “Network adapters” item in the list and click “Next” button.

7. In the “Select Device” dialog, click “Have Disk…” button.

4-15

Chapter 4

8. In the “Install From Disk” dialog, click the “Browse…” button.

9. In the “Open” dialog, select the drive the Master CD in.

10. Select the “Lan” folder of the “Drivers”.

4-16

Driver Setup

11. Select “win98” folder in the “Drivers\Lan” folder.

12. In the “Driver\Lan\WIN98” folder, select the “netrts5.inf”file and click
the “OK” button.

13. Click the “OK” button in the “Install From Disk” dialog.

4-17

Chapter 4

14. Select “Realtek RTL8139/810X Family PCI Fast Ethernet NIC” model in
the “Select Device” Dialog, and click the “OK” button.

15. Click the “Next” button in the “Update Device Driver Wizard” dialog.

16. Then the “Update Device Driver Wizard” will copy appropriate files and
update hardware configuration automatically.

17. Then click the “Finish” button of the “Update Device Driver Wizard”
dialog.

18. Finally, the Windows will ask you to restart the computer, click the “Yes”
button to restart it.

4-18

Driver Setup

Windows ME, Windows 2000, and Windows XP

1. Put the supplied CD into the CD ROM drive then in the first scene click
the “ Install Network Driver” item.

2. Click the “Next” button in the “InstallShield Wizard” dialog.

3. The “InstallShield Wizard” copies appropriate files into your system and
updates hardware configuration.

4. Finally, select the “Yes, I want to restart my computer now.” item, and
click the “OK” button.

4-19

Chapter 4

ITE Smart Guardian Installation

Installation for Windows 98/98SE/ME/2000/XP

1. Insert the supplied CD disc into the CD-ROM drive.

2. The CD should run automatically and the setup screen will appear. If not,
please run the “setup.exe” within the CD manually.

3. On the setup screen click on the Install SmartGuardian option to install
the ITE Smart Guardian.

4. When the installation starts, click Browse to set the Smart Guardian
directory, and Next to continue.

4-20

Driver Setup

5. Type a new folder name, or select one from the existing Folders list.

6. Setup has finished installing Smart Guardian on your computer. Click
Finish to complete Setup.

4-21

Chapter 4

ITE Smart Guardian User’s Manual

User’s Manual for Windows 98/98SE/ME/2000/XP

1. You may run ITE Smart Guardian from Start\Programs\ITE Smart
Accessories.

2. The main dialog is as follow:

3. Function description:
(1) Current Temperature:
Displays the temperatures of CPU and System in Celsius or Fahrenheit.
(2) Current Fan Speed:
Displays the fan speed of CPU and System in RPM.
(3) Current Voltage:
Displays the real value of eight specific voltages in the mainboard including
Vcore, Vtt(1.25V), 3.3V, Vcc(+5V), +12V, -12V, -5V, 5VSB.

4-22

(4) Option:

Driver Setup

(i) Advanced:

. Display Scale:

Choose to display in Celsius or Fahrenheit.
. Display On Topmost:
Set the main dialog of Smart Guardian on the topmost.
. Warning Sound Enable:
Choose the standard system beep or the sound card on your
computer to generate wanring noise.
. To Execute Smartguardian Automatically At Startup:
Choose Normal or Minimized to execute Smart Guardian at startup.

4-23

Chapter 4

(ii) Voltage:
Set enable and specify the percent which you tolerate. After that, if
any voltage falls out of the range between the default value adding
and abstracting the percent of the default value, the system will alarm
warning.

(5) Hide:
Minimizes Smart Guardian and puts it to the taskbar as a tray icon.
(6) About:
Displays the version number and the copyright.
(7) Exit:
Closes Smart Guardian.

4-24