VIA Technologies PT-TVBT, PT-TVBT2 User Manual

PT-TVBT

PT-TVBT2

VIA 693 SOCKET 370

AT MAINBOARD

USER’S MANUAL

V 1.X

DOC NUMBER: UM-TVBT-E2 ...............................................................PR INTED IN TAIWAN

VIA 693 Socket 370 AT Mainboard TABLE OF CONTENTS

i

TABLE OF CONTENTS

Chapter & Section Page

1. INTRODUCTION ...............................................................................1-1

1.1 OVERVIEW............................................................................................... 1-1

1.2 MAINBOARD LAYOUT ........................................................................ 1-2

1.3 SPECIFICATIONS ................................................................................... 1-3

2. INSTALLATION ................................................................................2-1

2.1 UNPACKING............................................................................................. 2-1

2.2 HOW TO POWER ON THE PC SYSTEM............................................ 2-1

2.3 POWER OFF THE PC SYSTEM........................................................... 2-3

3. HARDWARE SETUP.........................................................................3-1

3.1 INSTALLATION OF CPU....................................................................... 3-1

3.2 INSTALL THE DRAM MODULES ....................................................... 3-2

3.3 CONNECTORS......................................................................................... 3-3

3.4 JUMPERS .................................................................................................. 3-16

3.5 INSTALLATION OF DEVICE DRIVER .............................................. 3-21

4. AWARD BIOS SETUP ......................................................................4-1

4.1 GETTING STARTED............................................................................... 4-1

4.2 MAIN MENU............................................................................................. 4-2

4.3 CONTROL KEYS ..................................................................................... 4-2

4.4 STANDARD CMOS SETUP .................................................................... 4-3

4.5 BIOS FEATURES SETUP ....................................................................... 4-3

4.6 CHIPSET FEATURES SETUP ............................................................... 4-7

4.7 POWER MANAGEMENT SETUP......................................................... 4-11

4.8 PNP/PCI CONFIGURATION ................................................................. 4-15

4.9 INTEGRATED PERIPHERALS............................................................. 4-18

4.10 LOAD SETUP DEFAULTS ................................................................. 4-20

4.11 SUPERVISOR PASSWORD / USER PASSWORD .......................... 4-21

4.12 IDE HDD AUTO DETECTION .......................................................... 4-23

4.13 SAVE & EXIT SETUP / EXIT WITHOUT SAVING....................... 4-24

VIA 693 Socket 370 AT Mainboard

ii

SOMETHING IMPORTANT !

¶ TRADEMARKS

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

¶ LOAD SETUP DEFAULTS

“LOAD SETUP DEFAULTS” is the function which will have the BIOS default

settings loaded into the CMOS memory, these default settings are the best-case
values that should optimize system performance and increase system stability .This
function will be necessitated when you receive this mainboard, or when the system
CMOS data is corrupted. Please refer to the Section 4-10 for the details.

¶ DISCHARAGE CMOS DATA

Whenever you want to discharge the CMOS data or open the system chassis, Make

sure to disconnect the AC power first because there is always the 5V standby voltage
connected to this mainboard when using an ATX switching power supply. Without
disconnecting the AC power connector from the PC system, the mainboard may be
damaged by any improper action.

¶ WAKE ON LAN

In order to support the Wake On LAN feature, the system requires a ATX type SPS

(switching power supply), Such power supply must be able to provide at least 800
mA of driving capability on the “5V standby” voltage.

¶ WARNING !

The "Static Electricity" may cause damage to the components on the mainboard, In

order to avoid the damage to the mainboard accidentally, please discharge all static
electricity from your body before touching this mainboard.

¶ NOTICE

Information presented in this manual has been carefully checked for reliability;
however, no responsibility is assumed for inaccuracies. The information contained in
this manual is subject to change without notice.

VIA 693 Socket 370 AT Mainboard INTRODUCTION

1-1

1. INTRODUCTION

1.1 OVERVIEW

This Mainboard is a high performance personal computer mainboard. It is the AT
form-factor with Socket 370 on the board for socket type Celeron™ Processors.
VIA 693 and 596 chipsets are chosen as the system core logic to give the most
outstanding performance and reliability. It is designed for 300, 333, 350, 366, 400,
433, 450, 466, 500, 550MHz and higher speed socket type Celeron™ processors.

The chipset installed on this mainboard will be either VIA 693 with 596A or VIA

693 with 596B chipsets. The difference between these two chipset are shown in
the following table:

CHIPSET ULTRA DMA MODE

VIA 693 with 596A chipset Ultra DMA33

VIA 693 with 596B chipset Ultra DMA66

This mainboard has two channels of “PIO” and “Ultra DMA33 ( or Ultra DMA66)
Bus Master” mode PCI IDE ports built on the mainboard to support the most
updated IDE devices. One Floppy Disk controller interface, two high speed Serial
ports (UARTs), one multi-mode Parallel port, one PS/2™ mouse port, one IR
interface and two USB ports are designed on the board for wide variety of
peripheral connection.

The ESS Solo-1 (ES1938S) PCI sound chip is designed on board (ESS sound chip
is optional on the board). 3-D stereo effects processor, 16-bit stereo wave ADC
and DAC, 16-bit stereo music DAC, MPV-401 UART mode serial port dual game
port and ESFMä music synthesizer is built in the ES1938S audio chipset. When
you find the ES1938S sound interface (CN18) installed on the mainboard, you
don't have to purchase another sound card because there is the 3D audio interface
on your mainboard.

The Celeron™ are the 32-bit processors with RISC technology, which offers
several key features such as built-in L2 cache, 12-stage super-pipeline
architecture, out of order execution … etc. In order to optimize of its capabilities
and performances, the 32-bit Operating System (such as Windows® and OS/2™)
and 32-bit applications are recommended.

VIA 693 Socket 370 AT Mainboard INTRODUCTION

1-2

1.2 MAINBOARD LAYOUT

CPU

CN1

AT K/B

CN5 LPT

COM2COM1

CN14 AT POWER

CN18 GAME/AUDIO

SYS. BIOS

CN8 FDC

CN9 IDE 1

CN10 IDE 2

PCI 3

PCI 2

PCI 1

AGP

ISA SLOT

DIMM 2

DIMM 1

CN15 ATX POWER

BAT1

CN21 CD-IN

CN6 USB1

CN7 USB2

CN16 WOL

CN2

MS

SPK

PWR-LED

SLPWHLTLR

S

CN22 AUDIO IN

CN12 IR

JP6

SW

CN13

FAN 2

ISA SLOT

JP5

JP3

ES1938S

Solo 1

NS PC87309

JP4

CN17

FAN 1

VIA 693 Socket 370 AT Mainboard INTRODUCTION

1-3

1.3 SPECIFICATIONS

¥ CPU

Intel® Celeron™ 300, 333. 350, 366, 400, 433, 450, 466, 500MHz and higher

speed Socket 370 processors

¥ CPU VCC

Three sets Voltage Regulator circuits on board, supports +1.30V DC through

+2.05V DC CPU Core Voltage and all lower-voltage components.

Note : The CPU Core Voltage will be Detected and adjusted automatically by the

VID-pin on the CPU, so there is no manual-adjustment required to select the CPU
voltage. Simply plug in the CPU and start immediately.

¥ WORD SIZE

Data Path : 8-bit, 16-bit, 32-bit, 64-bit
Address Path : 32-bit

¥ PC SYSTEM CHIPSET

VIA693 with 596A chipset or VIA 693 with 596B chipset.

¥ SUPER I/O CHIPSET

NS PC87309 I/O chip

¥ FRONT SIDE BUS FREQUENCY

66 MHz and 100MHz selectable.

¥ MEMORY

Two 168-pin DIMM sockets onboard, Maximum memory size can be up to 512

MB with ECC checking. Supports 3.3V SDRAM DIMM module,

Cache memory: 128KB pipelined burst SRAM in Celeron™ processor.

¥ BIOS

AWARD Plug & Play System BIOS, supports ACPI, DMI and Green functions.

VIA 693 Socket 370 AT Mainboard INTRODUCTION

1-4

¥ EXPANSION SLOTS

AGP Slots : 32-bit x 1 (Supports 1x or 2x AGP graphics cards)
PCI Slots : 32-bit x 3 (All master / Slave, PCI 2.1 compliant)
ISA Slots : 16-bit x 2 (One of the slot is PCI/ISA shared)

¥ WOL PORTS (active only with ATX power supply)

One WOL connector supports Wake-On-LAN (WOL up-designed)

¥ USB PORTS

Two Universal Serial Bus (USB) ports.

¥ IDE PORTS

Two channels of Ultra UDMA/33 or Ultra DMA/66 Bus Master IDE ports. It will

support up to 4 IDE devices like IDE hard disk, ATAPI CD-ROM and LS-120/ZIP­100 devices. The IDE ports can be programmed to support PIO Mode 4, DMA
mode 2 and Ultra DMA/33 or Ultra DMA/66

¥ SUPER I/O PORTS

1. Two high speed NS16C550 compatible serial ports (UARTs).

2. One parallel port, supports SPP/EPP/ECP mode.

3. One Floppy Disk Control port.

¥ IR PORT

One HPSIR and ASKIR compatible IR transmission connector (5-pin).

¥ MOUSE AND KEYBOARD

One PS/2™ mouse connector and one AT type keyboard connector.

¥ 3D AUDIO INTERFACE ( optional)

ESS Solo-1(ES1938S) PCI sound chip on board, built-in 3D stereo effects

processor, 16-bit stereo wave ADC and DAC, 16-bit stereo music DAC, MPU-401
UART mode serial port, dual game port, ESFMä music synthesizer.

VIA 693 Socket 370 AT Mainboard INTRODUCTION

1-5

¥ HARDWARE MONITORING (optional)

Winbond W83783S (U5) is designed on the board to monitor hardware healthy

status such as system voltage, system temperature, and cooling fans. When the CPU
temperature is too high, the system board to give a series of beeping alarm or
display the warning message on the screen so that you can take proper action to
prevent your system from damage. When you hear the beeping alarm or the warning
message on the screen, be sure to turn the power off and open the chassis
immediately, check on the appropriate component on the mainboard (especially the
CPU cooling fan ) to see whether it is working properly or not. If you don’t know
how to handle it, please ask for the technical support from your dealer.

This mainboard provides the hardware monitoring program so that you can monitor
the healthy status of your PC system. When you find there is the Winbond
W83783S installed on the board, you can run the hardware monitoring program in
the CD (the hardware monitoring program is in the "Driver" sub-directory.) and
then the hardware monitoring feature will inform you the system status all the time.

¥ ACPI (Active only with ATX power supply)

Advanced Configuration and Power Interface (ACPI) function is a new feature and
it will let you have many amazing benefits. With the ACPI feature your PC system
will becomes very friendly and convenient. When you have the ATX power supply
connected to the mainboard, you will have the following features:

1. On Now: power on the system by panel-switch, Modem ring-in, and LAN signal.

2. Power off (soft-off) by OS or Panel-switch.

3. Resuming of PC system. (such as Modem ring-in, RTC alarm, .... etc.)

¥ DIMENSION

1. Width & Length : 220 mm x 220 mm.

2. Height : 2 1/2 inches with CPU Retention Mechanism.

3. PCB Thickness : 4 layers, 0.05 inches normal.

4. Weight : 18 ounces.

¥ ENVIRONMENT LIMIT

1. Operating Temperature : 10 to 40. (50 to 104)

2. Required Airflow : 50 linear feet per minute across CPU.

3. Storage Temperature : - 40 to 70. (- 40 to 158)

4. Humidity : 0 to 90% non-condensing.

5. Altitude : 0 to 10,000 feet.

VIA 693 Socket 370 AT Mainboard INSTALLATION

2-1

2. INSTALLATION

2.1 UNPACKING

The mainboard contains the following components in the package. Please inspect the
following contents and confirm that everything is there in the package. If anything is
missing or damaged, call your supplier for instructions before proceeding.

l This mainboard.
l One USER‘S MANUAL.
l One Cable set for IDE and I/O devices.
l One CD diskette for device drivers and utility programs.

This mainboard contains electrostatic sensitive components and it can be easily
damaged by static electricity. So please leave it sealed in the original packing until
when installing the mainboard in the PC system.

A grounded anti-static mat is recommended when unpacking and installation. Please
also attached an anti static wristband to your wrist and have it grounded to the same
point as the anti-static mat. After the opening of the mainboard carton, please observe
the mainboard carefully to make sure there is no shipping and handling damage before
you can start to install the PC system.

2.2 HOW TO POWER ON THE PC SYSTEM

When this mainboard has been installed successfully and the ATX type power
supply is used to connect to the mainboard, there are several ways to power on the
system. Please read the following description for all the details.

POWER BUTTON (PW SWITCH)

When there is the ATX type power supply connected to the mainboard, the power

button on the front panel can be programmed by the BIOS setup program and it will
have different features. The power button can be used as a power button or suspend
switch according to the selection in the system BIOS. The PW switch can also be
used as suspend switch when the ACPI function is selected when installing
Windows 98. Please refer to page 3-14 for detail function description.

VIA 693 Socket 370 AT Mainboard INSTALLATION

2-2

¨ RTC ALARM (optional, active only with ATX type power supply)

PC system can be waked up by the RTC setting in the CMOS. You can set the

alarming date and time in the RTC memory, When RTC alarms, the PC system will
be triggered and wakes up automatically.

Enable the “Resume by Alarm” selection in the BIOS setup utility, and then input
the accurate date and time in following fields. (the “RTC Alarm Resume” is
included in the “POWER MANAGEMENT SETUP”, please refer to Section 4.7),
Having stored the RTC alarm setting, the PC system will be turned on automatically
according to the date and time which is recorded in the CMOS memory.

Same as the above, you have to reboot the PC system and wait for the POST (Power
On Self Test) is completed to enable the RTC alarm.

¨ MODEM RING-IN (optional, active only with ATX type power supply)

This mainboard can be triggered by a modem ring-in signal. When you have an

external modem installed, you can use it to power on the PC system. When there is
the incoming message from the external modem, the PC system will be triggered by
the ring-in signal and wake up automatically to receive the message for you.

In order to use the ring-in signal to wake up your PC system, you will have to use
the EXTERNAL MODEM and have it connected to one of the Serial Ports (COM1
or COM2). When the system power is off, this mainboard will continue to detect the
serial port status. When it detects the ring-in signal from the serial port, the system
power will be turned on and start to receive the incoming messages automatically.

To enable the Modem Ring-In feature, you have to run the BIOS setup utility and
enable the “Modem or LAN resume” option (it is in the “POWER MANAGEMENT
SETUP”, please refer to Section 4.7 for the settings). Having completed the BIOS
setup, you have to reboot the PC system so that BIOS can verify the setting. (the
“DMI pool data” will be verified by the BIOS when loading the operating system).
Simply speaking, shut down the PC system and then re-start the system. The modem
ring-in feature will be enabled when the operation system has been loaded.

Note: This function is not available when using the internal MODEM card.

VIA 693 Socket 370 AT Mainboard INSTALLATION

2-3

¨ WAKE ON LAN ( WOL ) (optional, active only with ATX type power supply)

There is a WOL connector CN16 (see Section 3.3) on the mainboard which is
designed to connect to the signal from a LAN card which supports the Wake On
LAN feature. When such LAN card is installed, you may turn on the PC system
from your remote server and monitor the PC status.

To enable this feature, you will have to use the BIOS setup utility to enable the
“Modem or LAN resume” (it is located at “POWER MANAGEMENT SETUP”,
please refer to Section 4-7 for the settings). Having completed the BIOS setup, you
have to reboot the PC system so that BIOS can verify the setting. ( the “DMI pool
data” will be verified by the BIOS when loading the operating system). Simply
speaking, reboot the PC system, the Wake On LAN feature will be enabled when the
operation system has been loaded

Note: This function will be disabled if you turn off the power before the system

can verify the DMI pool data.

2.3 POWER OFF THE PC SYSTEM

1. When ATX power supply is connected.
There are two ways to power off the system. They are “Shut Down by Power
button” and “ Shut Down by OS”. (such as Windows® 95 and Windows® 98, you
can choose the Shut Down from the file menu and the system will be powered off
immediately ).

2. When AT power supply is connected.
You can not use the OS to shut down the PC system, you can only use the power
switch on the power supply to turn the system power off.

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-1

3. HARDWARE SETUP

Before you can start to install this mainboard, some hardware settings is required
to make sure it will work perfectly with the component which you are going to
install in your PC system. To configure this mainboard is a simple task, only a few
jumpers, connectors, cables and sockets need to be selected and configured.
(please refer to section 1.2 “mainboard layout” for the component location).

3.1 INSTALLATION OF CPU

When you have installed CPU onto the mainboard, this mainboard will detect the
CPU type and decide the proper CPU voltage as well as the front side bus frequency
(FSB clock) automatically. So you do not have to make any jumper or switch setting
to select the CPU type. All you have to do is plug the CPU onto the mainboard and
use the default BIOS setting to decide the FSB clock. If you want to select different
FSB clock for the CPU, you can use the BIOS setup program to make other
selection. The socket where we are going to install the CPU is a 370-pin socket type
connector and we call it the SOCKET 370 as shown in the following picture:

CPU

Socket 370

for Celeron CPU

Note: Please make sure to attach a CPU cooling fan to the CPU

to reduce the CPU temperature. Without the cooling fan,
the CPU can be damaged because of high temperature.

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-2

3.2 INSTALL THE DRAM MODULES

This mainboard has the 168-pin DIMM sockets designed on the board, each DIMM
can be single-bank or double-bank It supports two types of DRAM memory and
they are either the Extended Data Out (EDO) or Synchronous (SDRAM) memory.
(Both Symmetrical and Asymmetrical DRAM addressing are supported.) Please
note the DIMM modules suggested on the mainboard must be 3.3V, un-buffered and
DRAMs‘ speed must be either 60ns or 50ns,.

DIMM 2 ( BANK3 + BANK4 )

DIMM 1 ( BANK1+ BANK2 )

DRAM Subsystem

CPU

Installation of DIMM modules:

1. Outlook of DIMM modules:

( Single-Side DIMM module )

( Double-Side DIMM Module )

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-3

2. Minimum one DIMM module must be installed on the mainboard.

3. When FSB clock is 66MHz. please use 3.3V PC-66 or PC-100 DIMM

module.

4. When FSB clock is 100MHz. please use 3.3V PC-100 DIMM module.

5. You can use single side or double side DIMM module on this mainboard.

6. Please install the DIMM module starting from DIMM1 first.

Note: If your DIMM module does not have the parity bit,

please don't enable the Parity/ECC check feature in
the BIOS setup.

3.3 CONNECTORS

The connectors on mainboard will be used to connect the accessories or peripheral
devices (such as power, mouse, printer,...etc.). Following is the connectors with its
description and pin assignment which is designed on the mainboard.

(A) BAT1: Battery Socket (Use the 3 Volts Lithium battery : CR2032)

CPU

BAT1: Battery Socket

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-4

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-5

(B) CN1: Keyboard Connectors

CPU

Note: The PS/2 type keyboard connector is also designed on the mainboard and

it share the same location as the AT type keyboard connector. However,
one keyboard can be installed on this mainboard. When you see one
keyboard connector on the mainboard, the other type of connector will be
absent from the mainboard.

(C) CN2: PS/2 Mouse Connector

CPU

1

2

3

4

5

Mouse Data

No Connection
Ground

+5V DC

Mouse Clock

CN 2

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-6

(D) CN3: COM 1 (Serial Port 1) Connector
(E) CN4: COM 2 (Serial Port 2) Connector

CPU

CN 4

COM 2

CN 3

COM 1

I/O address 3F8H/2F8H/3E8H/2E8H, IRQ3/IRQ4, selected by CMOS setup.

(F) CN5: Parallel Port Connector

CPU

CN 5 Parallel Port

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-7

(G) CN6: USB 1 (Universal Serial Bus) Connector
(H) CN7: USB 2 (Universal Serial Bus) Connector

CPU

CN 7

USB 1

1 2 3 4 5

5 4 3 2 1

CN 6

USB 2

Note:

Wrong connection of USB cable or wrong type of USB cable
may destroy the USB device or this mainboard, please check
your mainboard dealer for the correct USB cable.

(I) CN8: Floppy Disk Control Port Connector ( IRQ6, DMA 2):

CPU

CN8 FDC Connector

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-8

(J) CN9: IDE 1 Connectors, (Primary IDE Port: 1F0H, IRQ 14)
(K) CN10: IDE 2 Connectors, (Secondary IDE Port: 170H, IRQ 15)

CPU

CN10: IDE 2

CN9: IDE 1

(L) CN12: IR (Infrared Rays) Connector

CPU

1
2
3
4
5

(

+5VDC )

(

NO CONNECTION )

(

IR RECEIVE )

(

GROUND )

(

IR TRANSMIT )

IR/FIR (INFRARED RAYS)

CN 12

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-9

(M) CN13: Cooling Fan Power Connector

CN 13

CN13 CPU Cooling Fan

Ground

+ 12V DC

Fan Sense Signal

1
2
3

CPU

Note: This cooling fan connector can be used as CPU cooling

fan connector or Chassis cooling fan connector.

(N) CN14: AT Power Connector:

CPU

CN 14

Note: There are two connectors from the switching power supply
(P8 & P9), Wrong connection will cause permanent damage to
the mainboard.

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-10

(O) CN15: ATX Power Connector:

CPU

CN15

(P) CN16: WOL (Wake On LAN) Connector

CN 16
WOL

12 3

CPU

Pin assignment of WOL Connector

123 Pin #

Signal name Pin # Signal name Pin # Signal name



1 5V standby 2 Ground 3 WOL Signal

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-11

(Q) CN17: Cooling Fan Power Connector

CPU

Ground

+ 12V DC

Fan Sense Signal

1

2

3

CN17

Note: This cooling fan connector can be used as CPU cooling

fan connector or Chassis cooling fan connector.

(R) CN18: AUDIO/GAME CONNECTOR (Optional)

There is the 3D audio interface designed on this mainboard which is optional.
When the audio interface is installed on the board, there is the adapter which
comes with the mainboard. The adapter will be connected to CN18 so that you can
connect the audio devices. Please refer to the following picture for the connection:

CPU

AUDIO / GAME

ADAPTER

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-12

Please refer to the following picture for the connections on the Audio/Game
adapter: (this adapter is optional)

LINE-IN

MIC

LINE-OUT

GAME / MIDI

(S) CN21/CN22 : CD-IN CONNECTOR (optional)

The CD-IN connectors on the board is designed to connect to the CD ROM audio
out. There are two different types of cable which comes with the CD ROM drive,
please check your CD ROM drive and decide which connector will be used to
connect to the CD ROM drive.

CPU

CN22

CN21

4 3 2 1

GLRG

4 3 2 1

RG LG

Note: L = Left channel audio-out

R = Right channel audio-out
G = Audio Ground

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-13

(T) Push buttons and LED connectors

A series of connectors are designed on the board to connect the push buttons and
LED indicators. Followings are the details:

PUSH BUTTONS AND LED CONNECTORS

RS: Reset Button c onnector
HL: HDD LED co nnector
TL: Turbo LED
SL: Sleep LED connector
PW: Power On / O ff Suspend switch

PWSLTLH

L

R
S

CPU

1

2

1. RS Reset Button Connector
Pin # Signal name

Pin1&2 Function
1 Reset Control Open No action
2 Ground Short System Reset

2. HL IDE HDD LED Connector
Pin # Signal name
1 + 5V DC Pull-up

2 HDD Active Signal

3. TL TURBO LED Connector
Pin # Signal name
1 + 5V DC Pull-up
2 Ground

4. SL Sleep LED Connector (valid only with ATX power supply)
This LED will be lightened when the AC power is connected and the
system is power off, darkened when the AC power is disconnected or the
system is powered on.

Pin # Signal name
1 Signal Pin
2 Ground

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-14

5. PW Power On / Off and External Suspend Switch Connector

Note: The power button on the front panel will be connected to

the PW connector here. Different CMOS setup or different
type of power supply is connected to the mainboard, the
PW button will have different function as following:

5-a. When this mainboard has the ATX power supply connected, According to the

setup in CMOS, the PW connector has different functions. It can be the Power
Switch or Suspend Switch of your PC system.(please refer to Section- 4.7 for
BIOS setup)

Q If the setup in CMOS is “Delay 4 Sec.”, the switch function will be:

A. When system is power OFF:

A short click on this switch, the system will be powered on.

B. When system power is ON :

a. The system is in Full-ON mode :

a-1. Click on this switch ( less than 4 seconds ), the system will be

turned into Suspend mode. (get into a GREEN mode)

a-2. Press and hold this switch for more than 4 seconds, the system

will be powered off.

b. When the system is in Suspend mode :

b-1. Click on this switch ( less than 4 seconds ), the system will

return to Full-ON mode.

b-2. Press and hold this switch more than 4 seconds, the system will

be powered off.

Note: When AT type power supply is connected to the mainboard, you may not have to

connect the PW switch to the chassis of your PC system. There is the power
switch on the front panel and it will be connected to the power supply so that you
can use it to power on or power off the PC system.

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-15

R The setup in CMOS is “Instant-off”:

A. When system power is OFF :

Click on this switch, the system will be powered on.

B. When system power is ON :

Click on this switch, the system will be powered off instantly.

5-b. When this mainboard has the AT power supply connected, According to the

setup in CMOS, the PW connector has two functions. It can be the Reset
button or Suspend Switch of your PC system.(please refer to Section 4.7 for
BIOS setup)

A. When the BIOS setup is “Delay 4 sec.”:

The PW switch can be used as a suspend switch. When it is first pressed,
the PC system will be turned into suspend mode, when clicked again, the
PC system will be back to the normal state.

B. When the BIOS setup is “Instant off”:

The PW switch can be used as a reset button in the PC system. When you
click on this button, the PC system will be reset and restart again.

(U) Speaker and Power-LED Connector:

CPU

SPK & PWR-LED CONNECTORS

SPK

PWR-LED

1 2 3 4
1 2 3 4

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-16

SPK: Speaker connector

1Pin #

Signal name



1 + 5V DC



2 No Connection



3 No Connection



4 Speaker Data Signal

4

PWR-LED: Panel Power LED

1Pin #

Signal name



1 Pullup (+ 5V DC for Power LED)



2 Ground



3 Ground



4 No connection

4

3.4 JUMPERS

When you have different devices connected to the mainboard, you may have to
change some of the hardware settings so that the mainboard will work properly in
your PC system. Basically, the hardware configuration can be made by either
jumper setting or switch setting. This section will discuss the jumper and switch
settings on this mainboard.

JUMPER SETTINGS:

A jumper is a set of two, three or more jumper pins which allows users to make
different system configuration by putting the plastic type connector plug (mini­jumper) on it. The jumper setting is necessary when installing different components
onto the mainboard. In order to let you have better idea of the jumper setting,
please see below for the explanation of jumper settings before you start this
section.

open

1-2

1

2-3

1

1

11

short

,

,

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-17

The jumpers mentioned in this chapter labeled with “optional” means
they are the optional choice for customers and the related components are
normally not populated on the mainboard. In order to make the
mainboard works properly in your PC system, please make sure all
jumper settings are at correct before installing this mainboard.

(A) JP4: CPU Front Side Bus (FSB) clock selection

JP4 is designed on the board for the purpose when you want to choose differtne
FSB clock. You can use the setting on JP4 to force the FSB clock at 66/100MHz
despite of the CPU type detected by the system BIOS.

CPU

JP 3

1

2

3

Pin 1 & Pin 2 Short: (Default setting)

CPU will detect the FSB clock
automatically.

Pin 2 & Pin3 Short:

FSB clock will be forced to run at
66MHz frequency.

Open:

FSB clock will be forced to run at
100MHz frequency.

Note: When you have installed the CPU onto the mainboard, most processor

itself will decide the FSB clock and you don't have to make any choice
on the FSB clock. JP4 allows you to select different FSB clock for your
CPU. However, if you use JP4 on the "Over clock" purpose, it is not
recommended because the system board may become unstable.

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-18

(B) JP5: Sound Interface Enable / Disable Selection (Optional)

The sound interface is optional on this mainboard. When you found the sound
interface (CN18) is installed on the mainboard, you may use JP5 to Enable or
Disable the sound interface.

CPU

JP 5

Short on JP5: Sound interface Enabled.

Open on JP5: Sound interface Disabled.

(C) JP6: Clear CMOS Data Button

CPU

1

2

3

1

2

3

Normal Setting Clear CMOS

JP 6

Pin1 & Pin 2 Short: Normal Setting

(Default setting)

Pin2 & Pin3 Short: Clear CMOS

Note: Improper BIOS setting may cause PC system hang-up, In case that it

happened, use JP6 to clear the CMOS memory and get the PC system back
to normal. Please refer to the following steps to clear the CMOS

1. Unplug the AC power cable from the PC system.

2. Put the mini jumper on pin 2-3 of JP6 around 3 to 5 seconds and then

return it to the original position ( pin 1-2 ).

3. Re-connect the AC power cable

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-19

(D) SWITCH SETTINGS (optional)

There is one "toggle switch" designed on the mainboard to select the CPU clock
ratio. Such "toggle switch" is optional because you may not need to use the switch
setting to select the CPU clock ratio. When you found the "toggle switch" on the
board, you will have the option to use switch settings to select the CPU clock
ratio.

1234

ON

SW (toggle switch)

CPU

Basically, when you have installed
the Celeron Processor onto the
mainboard, the CPU clock ratio is
decided and "locked" automatically.
In this case, the switch setting on the
mainboard will not change the clock
ratio.

CPU (MHz) Clock Ratio SW1 SW2 SW3 SW4

233,350 3.5X OFF OFF ON ON
266,400 4.0X ON ON OFF ON
300,450 4.5X OFF ON OFF ON
333,500 5.0X ON OFF OFF ON
366,550 5.5X OFF OFF OFF ON

400 6.0X ON ON ON OFF
433 6.5X OFF ON ON OFF
466 7.0X ON OFF ON OFF
500 7.5X OFF OFF ON OFF
533 8.0X ON ON OFF OFF

NOTE: You don't have to use the switch setting to select the clock ratio

because almost all Celeron CPU does not allow you to change
the default clock ratio.

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-20

How to make the Switch Setting

The following pictures will show you how to make the setting on the "toggle
switch" step by step.:

1234

ON

( Picture of "toggle switch" )

Toggle Switch Setting For "OFF"

1234

ON

OFF

Push the switch downward to select "OFF"

Toggle Switch Setting for "ON"

1234

ON

ON

Push the switch upward to select "ON"

VIA 693 Socket 370 AT Mainboard HARDWARE SETUP

3-21

3.5 INSTALLATION OF DEVICE DRIVER

There is a CD which comes with the mainboard. The CD contains the device
drivers which is necessary when installing the mainboard. Please refer to the
following procedures to install the device drivers.

A. Install the Mainboard driver:

Step 1. Insert the CD into the CD ROM drive.
Step 2. Change the directory to "\Driver\mainboard\VIA\Pentium II "
Step 3. Run "SETUP.EXE" to install the device driver.

B. Install the Sound card driver: (optional)

If you found that the sound interface is installed on the mainboard,

please use the following procedure to install the device driver the

ES1938S Solo1 chip installon the board

Step1. During the installation of Windows or when you select "refresh" in the

Windows' system manager, Windows will detect the sound interface
and request for the sound card device driver. Insert the CD into the CD
ROM drive and specify the directory to complete the installation of

sound card device driver.
Step2. Select "Driver\Sound\ESS\Solo 1\rackap\setup.exe" directory
Step3. Run "SETUP.EXE" to install the "RACK PLAYER" utility.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-1

4. AWARD BIOS SETUP

4.1 GETTING STARTED

When the system is first time powered on or reset by user, the BIOS will enter the
Power On Self Test routines ( POST, which will display a copyright message on the
screen and execute a diagnostics and initialization procedure.) In case that there is
any error or malfunction detected, the BIOS will give a series of beep sound or
display the error message on screen.

When the system is normal, the simulate figure Fig. 4-1 will be displayed on the
screen when the system is powered on.

TVABT FOR PT-TVBT / PT-TVBT2 (Y2K READY)

INTEL CELERON™ CPU AT XXXMHz

Memory Test : 196608K OK

Award Plug and Play BIOS Extension V1.0A

Copyright © 1999, Award Software, Inc.

Detecting IDE Primary Master …. Quantum Fireball CR8.4A

Detecting IDE Secondary Master … None

Found CDROM : Toshiba DVD-ROM SD-M1102

Press DEL to enter SETUP, ESC to skip memory test.

Xx/xx/xx-693-596-NS309-2A6LGP8HC-00

Fig. 4-1 Initial Power-On screen.

During the power on self testing (POST), the following message appears at the
lower left corner of the screen:

" Press DEL to enter SETUP "

To execute the Award® BIOS CMOS Setup program, press on the DEL key. The
STANDARD CMOS SETUP screen as shown in figure Fig. 4-1 will be triggered:

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-2

4.2 MAIN MENU

ROM PCI / ISA BIOS (2A6LGP8H)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP SUPERVISOR PASSWORD

BIOS FEATURES SETUP USER PASSWORD

CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION

POWER MANAGEMENT SETUP SAVE & EXIT SETUP

PNP/PCI CONFIGURATION EXIT WITHOUT SAVING

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC : Quit

 : Select Item

F10 : Save & Exit Setup (Shift)F2 : Change Color

Time, Date, Hard Disk Type ...

Fig. 4-2 CMOS SETUP MAIN MENU screen.

4.3 CONTROL KEYS

Listed below is the explanation of the keys displayed at the bottom of the screens
which will be used in the CMOS SETUP program :

Arrow Keys : Use the arrow keys to move the cursor to the desired item.
Enter : Select the desired item.
F1 : Display the help screen for the selected feature.
(Shift)F2 : To change the screen color, total 16 colors.
ESC : Exit to the previous screen.
PgUp(-)/PgDn(+) : To modify or change the content of the highlighted item.
F5 : Retrieves the previous value from CMOS data, ( only the current

page setup will be retrieved ).

F7 : Loads the SETUP default values from BIOS default table, (only

the current page setup will be loaded ).

F10 : Save all changes to CMOS RAM from the MAIN MENU

The following pages show all the screens which you will find in the CMOS SETUP
program, each picture will contain the selection items and its default settings. At
the bottom of some screen, you will find the description of all function key which
can be used to change the settings. If you are not quite sure of the definition for
some specific items, please consult with other technician for details.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-3

4.4 STANDARD CMOS SETUP

ROM PCI / ISA BIOS (2A6LGP8H)

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

Date (mm : dd : yy) : Thr, May 7 1999
Time (hh : mm : ss : 14 : 59 : 21

HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE

Primary Master Auto 0M 0 0 0 0 0 Auto
Primary Slave None 0M 0 0 0 0 0 -----­Secondary Master Auto 0M 0 0 0 0 0 Auto
Secondary Slave None 0M 0 0 0 0 0 ------

Drive A : 1.44M, 3.5 in.
Drive B : None Base Memory : 640 K
Floppy 3 mode support : Disabled Extended Memory : xxxxxx K
Video : EGA/VGA Other Memory : xxxxxx K

Halt On : All Errors Total Memory : xxxxxx K

ESC : Quit  : Select Item PU/PD/+/- : Modify
F1 : Help (Shift)F2 : Change Color

Fig. 4-3 STANDARD CMOS SETUP screen.

MODE :

The BIOS on the mainboard is the updated one and which provides three different
modes to support both normal IDE HDD and the one which is above 528MB:

 NORMAL : For IDE hard disk drives which is smaller than 528MB.
 LBA : For IDE hard disk drive which is above 528MB (ideally, it can be as big

as 8.4GB ) that use Logic Block Addressing (LBA) mode.

 Large : For IDE HDD which is above 528MB and does not support LBA mode.

Note : “large mode” may not be fully supported by all operation systems. It is suggested

to be used with the MS-DOS, such HDD is not popular nowadays.

 Auto : This mode will auto-detect your IDE driver during boot-up.

(Note: Some certain operation systems (such as SCO®-UNIX™ ), only "NORMAL

mode" is allowed when installation.)

Floppy 3 Mode Support: (Default setting: disabled )

This mode is for the Japanese 3.5 inch floppy disk drive. If you have such drive
installed in your PC system, please select enable, otherwise, use the default setting.

4.5 BIOS FEATURES SETUP

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-4

ROM PCI / ISA BIOS (2A6LGP8H)

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning : Disabled Video BIOS Shadow : Enabled
CPU Internal Cache : Enabled C8000-CBFFF Shadow : Disabled
External Cache : Enabled CC000-CFFFF Shadow : Disabled
CPU L2 Cache ECC Checking : Enabled CC000-CFFFF Shadow : Disabled

D4000-D7FFF Shadow : Disabled
Quick Power On Self Test : Enabled D8000-DBFFF Shadow : Disabled
Boot Sequence : A,C,SCSI DC000-DFFFF Shadow : Disabled
Swap Floppy Drive : Disabled
Boot Up Floppy Seek : Enabled HDD S.M.A.R.T. capability : Disabled
Boot Up NumLock Status : On
IDE HDD Block Mode : Enabled
Gate A20 Option : Normal
Memory Parity/ECC Check : Disabled
Typematic Rate Setting : Disabled
Typematic Rate (Chars/Sec) : 6

Typematic Delay (Msec) : 250 ESC : Quit  : Select Item
Security Option : Setup F1 : Help PU/PD/+/- : Modify
PS/2 mouse function control : Enabled F5 : Old Values (Shift)F2 : Color
PCI/VGA Palette Snoop : Disabled F7 : Load Setup Defaults
OS Select For DRAM > 64MB : Non-OS2

Fig. 4-4 BIOS FEATURES SETUP screen.

Virus Warning :

Basically, The default setting of this feature is "Disabled", In order to avoid virus
infection happens on your PC system, this mainboard provides the virus warning
features in the BIOS. During and after the operation system is loaded, any attempt to
write to the boot sector or partition table on the IDE hard disk drive will trigger this
feature and give you some warning messages on the screen and then halt the system.
When you find the message on your screen, please run the anti-virus program to see
whether your system is infected by a virus or not.

Enabled : A warning message will be displayed on the screen when something

attempts to access the boot sector or hard disk partition table.

Disabled : No warning message will appear on the screen when anything attempts to

access the boot sector or hard disk partition table.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-5

CPU Internal / External Cache : ( default setting: Enabled )

These fields allow you to turn on or turn off the Level 1 and Level 2 cache that built
inside the socket 370 processors.

CPU L2 Cache ECC Checking: ( default setting: Enabled )

This option will enable or disable the ECC checking on the CPU L2 cache. The ECC
checking will ensure the accuracy of the data stored on the L2 cache.

Quick Power on Self Test: ( default setting: Enabled )

The Quick Power On Self Test will skip some test and speed up the boot process. If
you find the system is working normally, you can always enable this feature so that
you don’t have to wait too long on the POST.

Boot Sequence : ( default setting: A,C,SCSI ) )

This field allows you to use some other device to boot the operating system. The
options available are “A,C,SCSI”, “C,A,SCSI”, “C,CDROM,A”, “CDROM,C,A”,
“D,A,SCSI”, “E,A,SCSI”, “F,A,SCSI”, “SCSI,A,C”, “SCSI,C,A”, “C only” and
“LS/ZIP,C”.

.

When select to load the OS from “CDROM,C,A” or “LS/ZIP,C”, you must select the
“HARD DISK TYPE and MODE” properly, the “Auto” selection is recommended so
that you can use CDROM or LS/ZIP device to load the OS into your system. (You
can find these items in the “STANDARD CMOS SETUP” )

Swap Floppy Drive : ( default setting: Disabled )

When enable this option, the device name of the floppy drives will be swapped, For
example, drive A will be treated as drive B, and drive B as Drive A.

Gate A20 Option: ( default setting: Fast )

This field allows you to select the access mode of the data which is above 1MB.

Memory Parity / ECC Check: ( default setting: Disabled )

This field allows you to enable or disable the system memory parity and ECC
checking. Please make sure that your DIMM module has the parity bit before you
will can select "Enabled" in this field.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-6

Security Option : ( default setting: Setup )

This selection field allows you to select the secure function of the PC system. There
are two choice selectable - "Setup" and "System". Before you can apply the security
option to your PC system, you have to select your own ""Supervisor Password" or
"User Password" in the BIOS setup program. (please refer to section 4.11)

When "Setup" is selected, you will have to input your "Passwords" before you can
start the BIOS setup program. If you select "System", you will be unable to load the
operation system if you don't key-in your personal "password"

PS/2 mouse function control : ( default setting: Enabled )

This mainboard built-in a PS/2™ mouse port, In case that you prefer to connect your
mouse to the serial port instead of using the PS/2™ mouse, you may choose
“Disable” in this field so that the IRQ12 can be released for the other devices; If you
are using the PS/2™ mouse, leave this field “Enabled”.

PCI/VGA Palette Snoop : ( default setting: Disabled )

Some display cards are non-standard VGA card (such as graphics accelerator or
MPEG Card) which may not display color properly on your screen. “Enable” the
setting in this field may correct this problem. Please leave it “Disabled” as the default
setting shown above if you are using the normal display card.

OS Select For DRAM > 64MB : ( default setting: Non-OS/2 )

When you are using the “OS/2™” operating system and the system memory is more
than 64MB, you will have to select the setting to “OS2”, otherwise, leave this on the
default setting “Non-OS2” for all other operating systems.

HDD S. M. A. R. T. capability : (default setting: Disabled )

S.M.A.R.T. (Self Monitoring Analysis Reporting Technology) is a new technology
of hard disk drive. Such technology will monitor the access to the hard drive and
let you have a better reliability. When S.M.A.R.T is enabled, the system BIOS can
receive analytical information from the hard drive and send you the warning
message about the possible failure in the hard drive

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-7

4.6 CHIPSET FEATURES SETUP

ROM PCI / ISA BIOS (2A6LGP8H)

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

Bank 0/1 DRAM Timing : SDRAM 10ns Auto Detect DIMM / PCI Clk : Enabled
Bank 2/3 DRAM Timing : SDRAM 10ns Spread Spectrum Modulated : Disabled
SDRAM Cycle Length : 3 CPU Host / PCI Clock : Default
DRAM Clock : CPU CLK
Memory Hole : Disabled
Read Around write : Disabled
Concurrent PCI/Host : Disabled
System BIOS Cacheable : Disabled
Video RAM Cacheable : Disabled
AGP Aperture Size : 64M
AGP – 2X Mode : Enabled

OnChip USB : Enabled ESC : Quit  : Select Item
USB Keyboard Support : Disabled F1 : Help PU/PD/+/- : Modify

F5 : Old Values (Shift)F2 : Color

F7 : Load Setup Defaults

Fig. 4-5 CHIPSET FEATURES SETUP screen.

WARNING : The selection fields on this screen are provided for the professional

technician who can modify the Chipset features to meet some specific
requirement. If you do not have the related technical background, do

not attempt to make any change except the following items.

Bank 0/1, 2/3 DRAM Timing : (Default Setting: SDRAM 10ns)

The DRAM timing of Bank 0/1, 2/3 in this field is used to adjust the access time of
the memory subsystem. Depending on different memory chips installed on the
board, you need to select different timing so that your PC system will be working
properly. Different timing will lead to different system performance. However,
improper setting in this field may cause system unstable. Please check your DRAM
module carefully before you may proceed with the setting.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-8

SDRAM Cycle Length : (default setting: 3 )

The Cycle Length in this field is used to define the CAS latency. The CAS latency is
one of the most important parameter in the memory subsystem because it will decide
the system performance. Basically, the default setting “3” is the suggest parameter
for this mainboard. You may also select “2” to make the system faster, Before you
can make this selection, please make sure that your SDRAM is fast enough
otherwise your PC system will be unstable.

DRAM Clock : (default setting: CPU CLK)

When VIA693 is installed on the board, you will see "CPU CLK" and "AGP CLK"
selectable in this field. If your SDRAM modules support the specification of PC­100, please select CPU CLK. If your SDRAM does not compatible with PC-100,
select AGP CLK.

Memory Hole : ( default setting: Disabled )

Some specific add-on cards may require one MB address space between 15MB and
16MB area. Please refer to the user’s manual of your add-on card carefully to see
whether you will have to enable this field or not when you are installing a add-on
card to the system..

Read Around write : (default setting : Disabled)

DRAM optimization feature: If a memory read is addressed to a location whose
latest write is being held in a buffer before being written to memory, the read is
satisfied through the buffer contents, and the read is not sent to the DRAM
The choice: Enabled, Disabled.

Concurrent PCI / Host : (default Setting : Disabled)

When disable, CPU bus will be occupied during the entire PCI operation period.
The choice: Enabled, Disabled.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-9

System BIOS Cacheable : (default setting: Disabled)

Select Enabled allows caching of the system BIOS ROM at F000h-FFFFFh,
resulting in better system performance. However, if any program writes to this
memory area, a system error may result.

Enabled

BIOS access cached

Disabled

BIOS access not cached

Video RAM Cacheable : (default setting: Disabled)

Select Enabled allows caching of the video RAM , resulting in better system
performance. However, if any program writes to this memory area, a system error
may result.

Enabled Video RAM access cached

Disabled Video RAM access not cached

AGP Aperture Size : ( default setting: 64MB )

There is the AGP slot on the board and which allows user to install the AGP display
card in the system. The AGP display card will use some of the system memory to
store 3D texture mapping data so that the video performance can be increased
tremendously. You may use this field to define the memory size which you prefer to
use with the AGP card.

There is the VGART.VXD utility comes with the AGP card and it will decide the
actual memory size which will be shared by AGP card. If you are installing the
Windows 98 operating system, this feature is supported already and you can select
the memory for the AGP Aperture size in this field.

AGP-2X: ( Default setting: Enabled )

Enable this field will make the board support 2X AGP card. If you select “Disable”,
then onle 1X AGP card will be supported by this mainboard.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-10

OnChip USB : (default setting: Enabled)

This should be enabled if your system has a USB installed on the system board and
you wish to use it. Even when so equipped, if you add a higher performance
controller, you will need to disable this feature.

The choice: Enabled, Disabled.

USB Keyboard Support : (default setting: Disabled)

Select Enabled if your system contains a Universal Serial Bus (USB) controller and
you have a USB keyboard.
The choice: Enabled, Disabled.

Auto Detect DIMM/PCI Clk: ( Default setting: Enabled )

When you select “Enabled”, the mainboard will detect the presence of devices on
DIMM and PCI slots. When there is no device presented, the clock on the related
DIMM and PCI slot will be disabled to reduce the Electro Magnetic Interference.

Spread Spectrum: ( Default setting: Disabled )

When you select “Enabled”, the special feature designed in the Apollo chipset will
be triggered and reduce the EMI as mentioned above.

CPU Host/ PCI Clock: ( Default setting: “Default” )

This selection field is used to decide the CPU FSB and PCI clock. Basically, this
mainboard is designed by using the VIA 82C693 chipset and it supports both the
100MHz and 66MHz FSB frequency. When you select “default” setting, the system
BIOS will detect the CPU type and decide the FSB clock automatically. You may
also use this field to select different FSB clock and force your CPU to run at higher
speed. ( be sure to make sure your system devices are fast enough before you can
change to such setting)

When you have decided the FSB clock, you may have to use the switch setting on
SW ( please refer to page 3-19) to select the CPU clock ratio and decide the CPU
speed. ( if your CPU has the "Fixed" clock ratio, then the switch setting on pate 3-19
will be useless.)

IMPORTANT: As you may have noticed,the higher FSB frequency will surely give

you the higher system performance. However, the PCI clock also increased
at the same time. If the peripherial is not fast enough, your PC system will
become very unstable when you change the Host clock. it is not
recommended because it may cause the system unstable,

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-11

4.7 POWER MANAGEMENT SETUP

ROM PCI / ISA BIOS (2A6LGP8H)

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

ACPI function : Disabled Primary INTR : ON
Power Management : User Define IRQ3 ( COM 2) : Primary

PM Control by APM : Yes IRQ4 ( COM 1) : Primary
Video Off After : Suspend IRQ5 ( LPT 2) : Primary
Video Off Method : Blank Screen IRQ6 ( Floppy Disk) : Primary
MODEM Use IRQ : 3 IRQ7 ( LPT 1) : Disabled
Soft-Off by PWR-BTTN : Instant-Off. IRQ9 ( IRQ2 Redir) : Secondary
HDD Power Down : Disable IRQ10 ( Reserved) : Secondary
Doze Mode : Disable IRQ11 ( Reserved) : Secondary
Suspend Mode : Disable IRQ12 ( PS/2 Mouse) : Primary

** PM Events ** IRQ13 ( Coprocessor) : Primary
VGA : OFF IRQ14 ( Hard Disk) : Primary
LPT & COM : LPT / COM IRQ15 ( Reserved) : Disabled

HDD & FDD : ON ESC : Quit  : Select Item
DMA / master : OFF F1 : Help PU/PD/+/- : Modify
Modem or LAN resume : Disabled F5 : Old Values (Shift)F2 : Color
RTC Alarm Resume : Disabled F7 : Load Setup Defaults

Fig. 4-6 POWER MANAGEMENT SETUP screen.

WARNING : The selection fields on this screen are provided for the professional

technician who can modify the Chipset features to meet some specific
requirement. If you do not have the related technical background, do

not attempt to make any change except the following items.

ACPI function : (default setting: Disabled)

This item allows you to enable/disable the Advanced Configuration and Power
Management (ACPI).
The choice: Enabled, Disabled.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-12

Power Management : (Default setting: “User Define”)

This category allows you to select the type (or degree) of power saving and is directly
related to the following modes:

1. Doze Mode

2. Standby Mode

3. Suspend Mode

4. HDD Power Down

There are four selections for Power Management, three of which have fixed mode
settings.

Disable (default) No power management. Disables all four modes
Min. Power Saving Minimum power management. Doze Mode = 1 hr.

Standby Mode = 1 hr., Suspend Mode = 1 hr., and
HDD Power Down = 15 min.

Max. Power Saving Maximum power management -- ONLY

AVAILABLE FOR SL CPU’S. Doze Mode = 10
Sec., Standby Mode = 10 Sec., Suspend Mode =
10 Sec., and HDD Power Down = 1 min.

User Defined Allows you to set each mode individually. When

not disabled, each of the ranges are from 1 min. to
1 hr. except for HDD Power Down which ranges
from 1 min. to 15 min. and disable.

PM Control APM: (Default setting: “Yes” )

When enabled, an Advanced Power Management device will be activated to enhance
the Max. Power Saving mode and stop the CPU internal clock.
If the Max. Power Saving is not enabled, this will be preset to No.

Video Off After: (Default setting: “Suspend” )

When enabled, it allows the VGA adapter to operate in a power saving mode.

N/A Monitor will remain on during power saving modes.
Suspend Monitor blanked when the systems enters the Suspend mode.
Standby Monitor blanked when the system enters Standby mode.
Doze Monitor blanked when the system enters any power saving

mode.

VIA 693 Socket 370 AT Mainboard AWARD BIOS SETUP

4-13

Video Off Method: (Default setting: Blank screen )

This determines the manner in which the monitor is blanked.

V/H SYNC+Blank This selection will cause the system to turn off

the vertical and horizontal synchronization ports

and write blanks to the video buffer.
Blank Screen This option only writes blanks to the video buffer.
DPMS Initial display power management signaling.

Modem Use IRQ: (Default setting: 3 )

This mainboard has the ACPI feature designed on the board and it will “wakeup”
automatically when it detects the incoming modem Ring-in signal. Before you can
use the Ring-in signal to wakeup your PC system, you have to install the “External”
modem to your PC system and tell the PC system which serial port connects to the
modem by selecting the IRQ in this field. (Normally, COM1 will use IRQ4, and
COM2 uses IRQ3 ) The choices: NA, 3, 4, 5, 7, 9, 10, 11

Soft-Off by PWR-BTTN : (Default setting: “Instant-Off.”)

This selection field allows you to select the function of the PW switch. When ATX
power supply is connected to the mainboard, you can select "Instant-Off" or " Delay
4 Sec.". If you select "Instant-Off", the PC system will be powered off immediately
when you click on the PW switch. If you select or " Delay 4 Sec.", you will have to
press and hold the PW switch for more than 4 second to turn the system power off.

HDD Power Down: ( Default setting: “Disable” )

When enabled and after the set time of system inactivity, the hard disk drive will be
powered down while all other devices remain active.

Doze Mode: ( Default setting: Disable )

When enabled and after the set time of system inactivity, the CPU clock will run at
slower speed while all other devices still operate at full speed.

Suspend Mode: ( Default setting: “Disable “)

When enabled and after the set time of system inactivity, all devices except the CPU
will be shut off.

** PM Events **

PM events are I/O events whose occurrence can prevent the system from entering a
power saving mode or can awaken the system from such a mode. In effect, the system
remains alert for anything which occurs to a device which is configured as On, even
when the system is in a power down mode.

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VGA : (Default setting: On)

When set to On (default), any event occurring at a VGA port will awaken a system
which has been powered down.

LPT & COM : (Default setting: LPT/COM)

When set to On (default), any event occurring at a COM(serial)/LPT (printer) port
will awaken a system which has been powered down.

HDD & FDD : (Default setting: ON)

When set to On (default), any event occurring at a hard or floppy drive port will
awaken a system which has been powered down.

DMA/master : (Default setting: ON)

When set to On (default), any event occurring at a hard or floppy drive port will
awaken a system which has been powered down.

Modem or LAN Resume : (Default setting: Disabled)

When set to Enabled , any event occurring to the Modem Ring will awaken a system
which has been powered down.
The Choice: Enabled, Disabled.

RTC Alarm Resume : (Default setting: Disabled)

When Enabled, your can set the date and time at which the RTC (real-time clock)
alarm awakens the system from Suspend mode

Primary INTR : (Default setting: ON)

When set to On (default), any event occurring at will awaken a system which is in
Suspend mode.

The following is a list of IRQ’s, Interrupt ReQuests, which can be exempted much as
the COM ports and LPT ports above can. When an I/O device wants to gain the
attention of the operating system, it signals this by causing an IRQ to occur. When
the operating system is ready to respond to the request, it interrupts itself and
performs the service. When set On, activity will neither prevent the system from
going into a power management mode nor awaken it.

IRQ3(COM 2) IRQ4(COM 1) IRQ5(LPT 2)
IRQ6(Floppy Disk) IRQ7(LPT 1) IRQ8(RTC Alarm)
IRQ9(IRQ2 Redir) IRQ10(Reserved) IRQ11(Reserved)
IRQ12(PS/2 Mouse) IRQ13(Coprocessor) IRQ14(Hard Disk)
IRQ15(Reserved)

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4.8 PNP/PCI CONFIGURATION

ROM PCI / ISA BIOS (2A6LGP8H)

PNP/PCI CONFIGURATION
AWARD SOFTWARE, INC.

PNP OS Installed : No CPU to PCI Write Buffer : Enabled
Resources Controlled By : Manual PCI Dynamic Bursting : Enabled
Reset Configuration Data : Disabled PCI Master 0 WS Write : Enabled

PCI Delay Transaction : Enabled
IRQ-3 assigned to : PCI/ISA PnP PCI #2 Access #1 Retry : Disabled
IRQ-4 assigned to : PCI/ISA PnP AGP Master 1 WS Write : Enabled
IRQ-5 assigned to : PCI/ISA PnP AGP Master 1 WS Read : Disabled
IRQ-7 assigned to : PCI/ISA PnP
IRQ-9 assigned to : PCI/ISA PnP
IRQ-10 assigned to : PCI/ISA PnP Assign IRQ For USB : Enabled
IRQ-11 assigned to : PCI/ISA PnP Assign IRQ For VGA : Enabled
IRQ-12 assigned to : PCI/ISA PnP
IRQ-14 assigned to : PCI/ISA PnP
IRQ-15 assigned to : PCI/ISA PnP
DMA-0 assigned to : PCI/ISA PnP

DMA-1 assigned to : PCI/ISA PnP ESC : Quit  : Select Item
DMA-3 assigned to : PCI/ISA PnP F1 : Help PU/PD/+/- : Modify
DMA-5 assigned to : PCI/ISA PnP F5 : Old Values (Shift)F2 : Color
DMA-6 assigned to : PCI/ISA PnP F7 : Load Setup Defaults
DMA-7 assigned to : PCI/ISA PnP

Fig. 4-7 PNP/PCI CONFIGURATION setup screen.

WARNING : The selection fields on this screen are provided for the professional

technician who can modify the Chipset features to meet some specific
requirement. If you do not have the related technical background, do
not attempt to make any change.

PNP OS Installed : ( Default setting is “No” )

Select Yes if the system operating environment is Plug-and-Play aware
(e.g.,Windows 95).
The Choice: Yes and No.

Resources Controlled by : ( default setting: “Manual”)

The Award Plug and Play BIOS can automatically configure all the boot and Plug
and Play-compatible devices. If you select Auto, all the interrupt request (IRQ) and
DMA assignment fields disappear, as the BIOS automatically assign them.

Reset Configuration Data : ( default setting: “Disabled”)

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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 cannot boot.
The choice: Enabled and Disabled.

IRQ# assigned to : ( default setting: “PCI/ISA PnP”)

When resources are controlled manually, assign each system interrupt as one of the
following types, depending on the type of device using the interrupt:

Legacy ISA Devices compliant with the original PC AT bus specification, requiring
a specific interrupt (such as IRQ4 for serial port 1).

PCI/ISA PnP Devices compliant with the Plug and Play standard, whether designed
for PCI or ISA bus architecture.

DMA# assigned to : ( default setting: “PCI/ISA PnP”)

When resources are controlled manually, assign each system DMA channel as one
of the following types, depending on the type of device using the interrupt:

Legacy ISA Devices compliant with the original PC AT bus specification, requiring
a specific DMA channel

PCI/ISA PnP Devices compliant with the Plug and Play standard, whether designed
for PCI or ISA bus architecture.

CPU to PCI Write Buffer : (Default setting: Enabled)

When enabled, up to four Dwords of data can be written to the PCI bus without
interrupting the CPU. When disabled, a write buffer is not used and the CPU read
cycle will not be completed until the PCI bus signals that it is ready to receive the
data.
Choices are Enabled, Disabled

PCI Dynamic Bursting : (Default setting: Enabled)

When Enabled, every write transaction goes to the write buffer. Burstable
transactions then burst on the PCI bus and nonburstable transactions don’t.
Choices are Enabled, Disabled.

PCI Master 0 WS Write : (Default setting: Enabled)

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When Enabled, writes to the PCI bus are executed with zero wait states.
Choices are Enabled, Disabled.

PCI Delay Transaction : (Default setting: Enabled)

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

PCI#2 Access #1 Retry : (Default setting: Disabled)

This item allows you enable/disable the PCI #2 Access #1 Retry.
The choice: Enabled, Disabled

AGP Master 1 WS Write : (Default setting: Disabled)

This implements a single delay when writing to the AGP Bus. By default, two-wait
states are used by the system, allowing for greater stability.
The choice: Enabled, Disabled.

AGP Master 1 WS Read : (Default setting: Enabled)

This implements a single delay when reading to the AGP Bus. By default, two-wait
states are used by the system, allowing for greater stability.
The choice: Enabled, Disabled

Assign IRQ For VGA/USB : ( default setting: Enabled)

The system’s IRQ signals are limited and sometimes you may feel like to some more
IRQ signals for your add-on cards. The system BIOS of this mainboard allows you
to disable the IRQ which is supposed to be connected to VGA and USB ports. When
you have choose to disable the IRQ on VGA or USB port, the IRQ on the related
port will be released and becomes available for other devices.

Before you decide to proceed with the change, please make sure that your USB and
VGA adapter will not use the IRQ signal. Otherwise, your PC system will become
abnormal and the devices connected to these ports may not be working at all.

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4.9 INTEGRATED PERIPHERALS

ROM PCI / ISA BIOS (2A6LGP8H)

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

On-Chip IDE Channel0 : Enabled
On-Chip IDE Channel1 : Enabled
IDE Prefetch Mode : Enabled
Primary Master PIO : Auto
Primary Slave PIO : Auto
Secondary Master UDMA : Auto
Secondary Slave UDMA : Auto
Primary Master UDMA : Auto
Primary Slave UDMA : Auto

Secondary Master PIO : Auto
Secondary Slave PIO : Auto
Init Display First : PCI Slot

KBC input clock : 8Mhz
Onboard FDC Controller : Enabled

Onboard Serial Port 1 : 3F8 / IRQ4 ESC : Quit  : Select Item
Onboard Serial Port 2 : 2F8 / IRQ3 F1 : Help PU/PD/+/- : Modify
UR2 Mode : Standard F5 : Old Values (Shift)F2 : Color
Onboard Parallel Port : 378/IRQ7 F7 : Load Setup Defaults
Parallel Port Mode : SPP

Fig. 5-7 INTEGRATED PERIPHERALS setup screen.

On-Chip IDE Chanel 0/1: (Default setting: “Enabled” )

The integrated peripheral controller contains an IDE interface with support for two
IDE channels. Select Enabled to activate each channel separately

IDE Prefetch Mode: (Default setting: “Enabled” )

This allows you to select the IDE interface prefetch mode. Basically, Enable is
suggested because it will increase the HDD data performance.

Primary/Secondary Master/Slave PIO: (Default setting: “Auto” )

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

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Primary/Secondary Master/Slave UDMA: (Default setting: “Auto” )

Ultra DMA/33/66 implementation is possible only if your IDE hard drive supports it
and the operating environment includes a DMA driver (Windows 95 OSR2 or a
third-party IDE bus master driver). If your hard drive and your system software both
support Ultra DMA/33/66, select Auto to enable BIOS support.

Init Display First: ( Default setting : “PCI Slot” )

When you have both the AGP and PCI VGA card installed in the system, you can
use this field to decide the display priority.

AGP Slot: the display will be active on the AGP adapter.
PCI Slot: The display will be active on the PCI VGA adapter

KBC input clock: ( Default setting : “PCI Slot” )

This field allows to you select the clock frequency of the onchip keyboard
controller.

Onboard FDD Controller: ( Default setting : “Enabled” )

This should be enabled if your system has a floppy disk drive (FDD) installed on the
system board and you wish to use it. Even when so equipped, if you add a higher
performance controller, you will need to disable this feature.

Onboard Serial Port 1/Port 2: ( Default setting : “3F8, IRQ4/ 2F8, IRQ3” )

This item allows you to determine access onboard serial port 1/port 2 controller with
which I/O address.

The Choice: 3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled, Auto.

UR2 Mode Select: ( Default setting : “Standard” )
This item allows you to determine which Infra Red (IR) function of onboard I/O chip.
The Choice: Normal, ASKIR, HPSIR

Onboard Parallel Port: ( Default setting : “378/IRQ7” )
Select a logical LPT port name and matching address for the physical parallel port.
The choice: 378H/IRQ7, 278H/IRQ5, 3BCH/IRQ7, Disabled.

Parallel Port Mode: ( Default setting : “SPP” )
Select an operating mode for the onboard parallel port. Select Compatible or Extended
unless you are certain both your hardware and software support EPP or ECP mode.
The choice: SPP, ECP+EPP1.7, EPP1.7+SPP, EPP1.9+SPP, ECP, ECP+EPP1.9, and

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Normal

4.10 LOAD SETUP DEFAULTS

ROM PCI / ISA BIOS (2A6LGP8H)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP SUPERVISOR PASSWORD

BIOS FEATURES SETUP USER PASSWORD

CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION

POWER MANAGEMENT SETUP SAVE & EXIT SETUP

PNP/PCI CONFIGURATION EXIT WITHOUT SAVING

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC : Quit

 : Select Item
F10 : Save & Exit Setup (Shift)F2 : Change Color

Load Setup Defaults except Standard CMOS SETUP

If you lost the CMOS data or you don’t know how to complete the setup procedure, you
may use this option to load the SETUP default values from the BIOS default table. It is
easy to load the default value, simply highlight the “LOAD SETUP DEFAULTS” field
and then press the “Enter” key, when you see the “LOAD SETUP DEFAULTS (Y/N)”
displayed on the screen, response to it with “Y” and then press the “Enter” key. the
SETUP default values will be loaded. Basically, the SETUP default settings are the
best-case values that will optimize system performance and increase system stability.

In case that the CMOS data is corrupted, the SETUP DEFAULTS settings will be
loaded automatically when you press the “Del” key and enter the main setup screen. So
you may select “SAVE & EXIT SETUP” to leave setup program and the system is
loaded with the default settings.

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4.11 SUPERVISOR PASSWORD / USER PASSWORD

ROM PCI / ISA BIOS (2A6LGP8H)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP SUPERVISOR PASSWORD

BIOS FEATURES SETUP USER PASSWORD

CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION

POWER MANAGEMENT SETUP SAVE & EXIT SETUP

PNP/PCI CONFIGURATION EXIT WITHOUT SAVING

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC : Quit

 : Select Item
F10 : Save & Exit Setup (Shift)F2 : Change Color

Change/Set/Disable Password

Supervisor Password:

The “SUPERVISOR PASSWORD” will be used to check the authority when power-on
the PC system. The Supervisor Password will have different function according to the
"Security Option" setup in Section 4.5:

When "Setup" is selected in Security Option:

If you want to change the BIOS setting, you will have to key-in the Supervisor
Password so that you can start the BIOS setup program and change the system
setting..

When "System" is selected in Security Option:

When turn on the PC system, it will request you to enter the Password. Without
the correct password, the PC system will stop and the operation system will not be
loaded.

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User Password:

The User Password can be used to check the user's authority. Howerver, this password
entry is somewhat different to the "SUPERVISOR PASSWORD" mentioned in
previous page. The User Password will have different function according to the
"Supervisor Password" and the "Security Option" setup in Section 4.5:

A. When there is the password stored in the "SUPERVISOR PASSWORD"

1. When "Setup" is selected in Security Option:

Users can use the "User Password" to log into the BIOS setup program, but they
can only select "User Password", "SAVE & EXIT SETUP" and "EXIT
WITHOUT SAVING". (Use the Supervisor Password to log into the PC system,
you will have the complete right to change all settings in the BIOS setup
program)

2. When "System" is selected in Security Option:

When turn on the PC system, it will request you to enter the Password. Without
the correct password, the PC system will stop and the operation system will not
be loaded.

B. When there is no password stored in the "SUPERVISOR PASSWORD"

1. When "Setup" is selected in Security Option:

Users can use the "User Password" to log into the BIOS setup program, and they
can make all the change in the BIOS setup program.

2. When "System" is selected in Security Option:

When turn on the PC system, it will request you to enter the Password. Without
the correct password, the PC system will stop and the operation system will not
be loaded.

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4.12 IDE HDD AUTO DETECTION

ROM PCI / ISA BIOS (2A6LGP8H)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP SUPERVISOR PASSWORD

BIOS FEATURES SETUP USER PASSWORD

CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION

POWER MANAGEMENT SETUP SAVE & EXIT SETUP

PNP/PCI CONFIGURATION

INTEGRATED PERIPHERALS EXIT WITHOUT SAVING

LOAD SETUP DEFAULTS

ESC : Quit

 : Select Item
F10 : Save & Exit Setup (Shift)F2 : Change Color

Auto-Configure HDD: Sector, Cylinder, Head ...

In order to make the IDE hard disk known to the system, you need to tell the system
what kind of hard disk is connected to the mainboard by giving a set of hard disk
parameters. Sometimes it is not easy for users to find the proper parameters for their
IDE hard disk drive. In order to help users to find the parameters, the system BIOS
provides a convent way – the auto detection of IDE hard disk drive.

To run the auto detection program is extremely easy. Move the selection bar to “IDE
HDD AUTO DETECTION” and then press “Enter”, the system BIOS take over the job
and try to detect the type of IDE hard disk. If it succeeds, you will see a list of hard disk
with its related parameters. You may press on the “Y” key (or select one of the hard
disk type listed on the screen ). The system BIOS will transfer the parameters to the
corresponding fields in the STANDARD CMOS SETUP menu and you have completed
the IDE hard disk setup.

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4.13 SAVE & EXIT SETUP / EXIT WITHOUT SAVING

ROM PCI / ISA BIOS (2A6LGP8H)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP SUPERVISOR PASSWORD

BIOS FEATURES SETUP USER PASSWORD

CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION

POWER MANAGEMENT SETUP SAVE & EXIT SETUP

PNP/PCI CONFIGURATION EXIT WITHOUT SAVING

INTEGRATED PERIPHERALS

LOAD SETUP DEFAULTS

ESC : Quit

 : Select Item
F10 : Save & Exit Setup (Shift)F2 : Change Color

Save Data to CMOS & Exit SETUP

SAVE & EXIT SETUP:

This option will save all settings to CMOS memory and then exit the SETUP routine.
Move the selection bar to “SAVE & EXIT SETUP” and then press the “Enter” key
Confirm with the “Y” and “Enter” keys to the screen prompt and the setup information
will be stored in the CMOS memory. The setup program will be terminated and the
system will start to reboot.

EXIT WITHOUT SAVING:

This item exit the setup routine without saving any changed values to CMOS RAM,
When you do not want to save your change to the CMOS memory, you may choose to
run this option and the setting what you made in the BIOS setup routine will be given
away.

Move the selection bar to “EXIT WITHOUT SAVING” and click on the “Enter” key,
then you will be asked to confirm the action to exit, press the “Y” and “Enter” key, the
setup program will be terminated and the system will start to reboot.