FIC 486-PIO-3 (REV. A1) User manual

486-PI0-3

MAIN BOARD

User's Guide

DOC No. 14849

Archived by Justin D. Morgan - https://youtube.com/@jdmcs

This manual was found at the System Source Swap Meet in
Hunt Valley, MD on July 22, 2023. Many thanks goes to the seller
that put this manual in their free book box instead of tossing it!

Revision

Date Feb. 1996

A1

25-10377-02

HANDLING PRECAUTIONS

➔

Static electricity
on

the mainboard. Before handling any mainboard outside of its
protective packaging, ensure that there
charge
Danger of explosion if battery
only with the same or equivalent type recommended
manufacturer. Discard used batteries according to the manu­facturer's instructions.

in

Observe any or all

may

your body.

of

mainboard or other computer components:

■

Wear a static wrist strap which fits around your wrist and
nected to a natural earth ground.

■

Touch a grounded or anti-static surface or a metal fixture such as a
water pipe.

■

A void contact with the components on add-on cards, boards and
modules and with the
expansion slot. It
mounting bracket.

Above methods either prevent static build-up or cause it to be dis­charged properly.

TRADEMARKS
IBM registered trademark

Intel/ registered trademark
Pentium

COPYRIGHT©

TM

All

other trademarks mentioned

erty

of

the respective owners.

cause damage to the integrated circuits

is

no static electric

is

incorrectly replaced. Replace

by

these basic precautions when handling the

"gold finger" connectors plugged into the

is

best to handle system components by their

of

International Business Machines Corp.

of

Intel Corp.

in

this manual are registered

the

is

con-

prop-

This

manual

may not, in whole or in part, be photocopied, repro­duced, transcribed, translated, or transmitted in whatsoever
without the written consent
retained by the purchaser

of

the manufacturer,

for

personal archival purposes.

except/or

486-PI0-3

form

copies

·

Chapter 1 Overview

Main Features . .
Mainboard Layout
About Your Mainboard .

The BIOS Setup Utility
IRQ Functionality . . .
DMA Channels
Enhanced IDE . .

Chapter

Chapter

2 Mainboard Settings

Jumpers

Memory Locations .
Installing DRAM . .

.....

CPU Jumper Settings: JC1, JC2, JC3,

RNA, RNC, RNI

Intel .

AMD
UMC, Cyrix,

Low-Voltage CPU Jumper Setting
CPU Clock Jumper Setting .

Password Clear: JCP . . . .

Password Clear: JCP
Display Type Select: VIDEO
KB_LOCK Mode Select: J2

TB_LED Mode Select: J3 . . . . . . . . . . . . . . . . 2 - 7

W83787F/787IF Controller: JW1, JW2, JW3, JW4, Jl1,

3 System Memory

....

....

of

ISA Cards

.

....

.

.

Tl

..

Table of Contents

. .

..

......

. . . .

JC4, JCS

J1

1 - 2
1 - 3
1 - 4
1 - 4
1 - 5
1 - 6
1 - 6

-

2 - 1

2-2
2-2
2 - 3
2-4
2-5
2-6

2.- 7

2 - 8

3 - 1
3-2

SIMM Banks

DRAM Configuration .
Installation Instructions

Cache Memory . . . . . .

Installing Cache Memory
128KB Cache SRAM . . .

256KB Cache SRAM . . .
256KB Cache SRAM (The Alternative Insertion) .
512KB Cache SRAM
512KB Cache SRAM (The Alternative Insertion) .

1 MB Cache SRAM . . . . . . . . . . . . . . . .

Chapter 4 Award BIOS Setup

CMOS

Standard
BIOS Features Setup .
Chipset Features Setup
Power Management Setup

PCI Configuration Setup . . .
Interrupt Assignments of

Load BIOS Defaults . . . .

Load Setup Defaults . . . .

Supervisor/User Password
IDE HDD Auto Detection
Save and Exit Setup .
Exit Without Saving . . .

Setup Utility . .

CMOS Setup

For Regular Processors
For SMM Processors . .

...

. .

PCI

l

..

.....

Slots

....

...

3-2
3-2

3-3

.

3-4
3-4
3-5
3-5

. 3 - 5

.

. 3 - 8

. 3 - 9

3

-10

. 4

-1

. 4

-2

. 4

-4

. 4 - 7

4 -

11

4 -

11

4 -.

11

4

-15

4

-16

4

-16

4

-16

4

-17

4

-17

4

-18

4

-18

486-PIO-3

486-PIO-3

ABOUT THIS MANUAL

This manual
main board.
and also includes useful information for changing the configuration
and the system it
contain the main body

is

designed to guide you and facilitate your use

It

contains a description

is

installed

of

information normally referred to by users.

in.

The manual

of

the design and features

is

divided into four chapters , which

of

the 486-PI0-3

of

the mainboard ,

of

the board

Chaf.ter1

Overview

The 486-PI0-3 mainboard combines the advanced capabilities
chipset with a high-performance PCI local bus architecture to provide the ideal
platform
486DX2/DX4™ processors.

for

unleashing

the

unsurpassed

speed

and

of

the VIA Pluto™

power

of

the

Intel

Chapter 1

components and features.

Chapter 2
Chapter3

Chapter4

gives information on the jumper settings on the mainboard.
provides information on the memory subsystem

board in the form
how you can upgrade memory.

briefly explains the mainboard's BIOS system setup
and tells you how to run
settings.

NOTE : The material

overview

in

this manual

of

the mainboard and describes its major

of

the main-

of

SIMMs and Cache memory and describes

in

general

it

and change the system configuration

is

for information only and

gives

an

subject to change without notice. We reserve the right to make
changes
notification to

in

the product design without reservation and without

its

users. We shall not

be

liable for technical or
editorial omissions made herein; nor for incidental or consequen­tial damages resulting from the furnishing, performance, or use of
this material.

is

This highly-flexible mainboard
processors and can be easily upgraded using its 237-pin ZIF (Zero Insertion Force)
socket. The processor 's advanced performance
write back cache
memory
standard Fast Page Mode DRAM.

The 486-PI0-3 integrates a full set
ports, one EPP/ECP capable serial port, and one Floppy Disk Drive controller.
also comes with a built
high-speed connections with up to four IDE devices, including Hard Disk and
CD-ROM drives.

The mainboard allows a variety
bond' s W83787F/787IF/877F™ support advanced 1/0 features, such as ECP/EPP
Protocol, allows for a better system performance.

This chapter gives a you a brief overview
to basic information on the board's main components and features, it also provides
advice on how to upgrade and expand

ofup

to I MB and a main memory

is

installed using the board's two 72-pin SIMM sockets that accept

is

designed to run a full range

is

complemented by a second level

ofup

of

1/0 features onboard, including two serial

in

Enhanced IDE controller that provides convenient,

of

processor types

of

the 486-PI0-3 mainboard. In addition

it.

of

486DX/DX2/DX4

to 64MB RAM. The main

of

different voltages. Win-

It

486-PI0-3

486-PI0-3

1 - 2

Overview

Overview

1 - 3

Main Features

The 486-PI0-3 mainboard comes with the following features:

■

Supports:
Intel 80486SX/DX/DX2/DX4/ SL-Enhanced;
AMD A80486DX2/DX4™, Am486DX2/DX4/X5™; Cyrix Cx486DX™;

V™

in

UMC U5SL

■

VIA Pluto chipset, including a CPU interface controller, advanced cache
controller, integrated DRAM controller, synchronous ISA bus controller, PCI
local bus interface, integrated power management unit.

■

Supports l 28KB/256KB/5 l
through cache memory.

■

Supports I up to 64MB RAM
standard page mode DRAM operation.

■

Shadowing

■

Award BIOS.

■

Supports 128KB Flash ROM.

■

Built-in VIA VT82C416MV™ provides internal keyboard controller, real­time clock and clock generator.

■

Onboard Winbond W83787F/787IF/877F™
ports, one parallel port, FDC, Infrared, and PnP interface.

a ZIF socket.

2KB/l

MB direct-mapped write-back/write-

in

two banks using 72-pin SIMMs; provides

of

system and video BIOS to speed up access.

1/0

chipset supports two serial

Mainboard Layout

1

Seled

VIDE0 ~ 1

1r

EXTBAT ~

Display Type

cl ~

JW1 ~ 1

JW2 1

JW3
JW4

Jl1 1

1

r~ I

I

01

PCIBus

C/l

~

~

C/l

:;;

~

"'

ClockSeled

F1

i:j.,

J2

c:::J

1

Jt

RESET

~~t~~

RESUME

CN

;o;o;o

;!;ZZ

1

I

LEO

l

ITT

i

~

i~1Ell

JPW2

JCS 1

w-

JC<

~ I

ril

JC3 1

I ~ JC2 1

3V

JC1

- CPUFAN 1

O>

CPU

SOCKET

1

1

10 ~

1

7871Fl877F

IR~

--~

~

g

r l

ell

I

t:;

L

' -

el

;;:;

lw

=l

U F jalal

""'"'""

....-

i?::M~9

___

ell

::.

JS3

JS6

~~~

JSS

~

1~

~1

i~r

j~~

JK1
JK2

~ 1

JK3 1

JK4 1

Jn

PCI

Bus

Clock Select

~

[8[[

·:

I~

Bl

~

1

1j

:,

~

-!

1 a

m

\)

M1

~

M2

~3

-~

~

M4

~

~

~

M7

\)

MB

I

i

--

~

II

I

II

~

- _]

I

J

➔

486-PI0-3 486-PI0-3

NOTE : When pl·u·gging
make

sure that _the pin 1 matches that

your

CPU

into the CPU (ZIF) socket, I

of

th_e

CPU

socket.

1 - 4

Overview

Overview 1 - 5

About

This section provides useful infonnation that you will need to know should you
decide to modify or upgrade the configuration
is

installed in.

we advise that you consult a qualified service technician for assistance.

Your Mainboard

of

the mainboard and the system it

If

you do not have the confidence to upgrade the mainboard yourself,

The BIOS Setup Utility

The BIOS (Basic Input Output System)
computer how to operate. For the BIOS to work properly, there must be a record
of

the computer's hardware and configuration settings for it to refer to. This record
is created using the Setup Utility, a program that
ROM chip on the mainboard.

The system configuration record created by the Setup Utility
mainboard, but not pennanently. This section

NVRAM.

When you buy your computer, the system configuration record will already be set
and may
computer or when you need to re-configure your system, you should run the Setup
Utility and write down the settings. Please see Chapter 4 for an explanation on how

to run the Setup Utility.

in

some cases differ from the basic defaults. The first time you use your

is

the basic finnware that instructs the

is

stored pennanently

is

of

the memory it

in

the BIOS

also stored on the

is

stored

in

the

IRQ Functionality

As you read through this manual, ·you will see the term "IRQ" on a number
occasions. It
intend to upgrade your system.

IRQ stands for "Interrupt Request", the process
device tells the processor to temporarily interrupt its current task and immediately
process something from the source
processor returns to the task it was already processing. Devices that need an IRQ
line to operate sometimes need to have exclusive use

A large number

of

use
available
in

the system such

IRQ draw from the unused group
When installing a card that uses

you might have to change
are a number
common. Please see Chapter 2 for more information about this main board's jumper
settings.

Both ISA and PCI add-on cards may need to use IRQs. System IRQs are available
to add-on cards installed on the ISA bus first; the remaining ones can be used by
cards installed on the PCI bus. There are two categories
so-called "Legacy" ISA cards, which need to be configured manually and then
installed
are configured automatically by the system. As a result, when you install Legacy
ISA cards, you have to carefully configure the system to ensure that the installed
cards do not conflict with each other by having the same IRQ. With PnP cards, on
the other hand, IRQs are assigned automatically from the ones available
system. In the case
card to the PCI slot the card
see Chapter 4

is

important for you to know what this tenn means, particularly

in

which an input or output

of

the interrupt. When it has completed this, the

of

that line.

of

add-on cards, such

an IRQ line to function. There

in

a system, although some

as

the keyboard and mouse. Add-on cards that need to use an

if

that IRQ

of

ways to set an IRQ assignment, with jumpers being the most

in

an'y

available ISA slot; and ''Plug and Play" (PnP) ISA cards, which

of

PCI add-on cards, the BIOS ,automatically assigns an IRQ

is

of

this manual.

as

sound cards and LAN cards, require the

is

a total

of

16

IRQs (IRQ0 to IRQ15)

of

them may already be in use by components

of

IRQs.

an

IRQ, it will have a default IRQ setting which

is

already

in

use and cannot be shared. There

installed in. For further details on this topic, please

of

ISA add-on cards :

if

in

of

you

the

486-PI0-3

486-PI0-3

1 - 6

Overview

DMA Channels

Some Legacy and PnP ISA add-on cards may also need to use a Directed Memory
Access (DMA) channel. DMA assignments for this mainboard are handled in the
same way as the IRQ assignment process outlined above. For more information,
please refer to Chapter 4

of

ISA Cards

of

this manual.

Enhanced IDE

This mainboard features an integrated Enhanced IDE controller that provides
convenient, high-speed connections with up to four IDE devices, such as Hard
Disk, CD-ROM and Tape Backup Drives. Enhanced IDE is an upgrade
original IDE specification and provides increased capabilities and performance in
a number
faster data transfer rates
timing scheme.

With the integrated IDE controller you can connect up to four IDE peripheral
devices to your system. All devices are categorized in the same way that IDE Hard
Disks were configured in the past, with one device set as the
the other as the
primary IDE connector and that CD-ROM drives utilize the secondary IDE con­nector for improved system performance.

of

areas, including support for Hard Disk Drives

of

up to 16.6MB per second utilizing the PIO Mode 4

"Slave" device. We recommend that Hard Disk Drives use the

of

over 528MB and

"Master" device and

of

the

Chagler2

Mainboard Settings

The 486-PIO~3 has several user-adjustable jumpers on the board that allow you
configure your system

on the various jumper settings

Jumpers

Jumpers are used to select the operation modes for your system. Some jumpers
the board have three metal pins with each pin representing a different function.

"set" a jumper, a black cap containing metal contacts

pin/s according
when the black cap has been placed
used

in

this manual

II

Jumper Cap

j]l

2 1 3 2 1

Jumper are shown like above

to

suit your requirements. This chapter contains information

on

your main board.

to

the required configuration. A jumper

on

one or two

are

shown below:

I]

3-pin Jumper 2-pin Jumper Jumper Block

[QQ]

illlJl

[QQc

"□"

is

placed over the jumper

is

said

of

its

pins. The types

stands for pin 1

to

be

"shorted"

of

jumpers

to

on

To

II

-

Jumper

cap like

abovi

~

D

m

Jumpers

➔

486-PI0-3 f 486-PI0-3

NOTE : Users are
settings
settings improperly may adversely affect system perform-

ance.

in a

Block

not

listed in this manual. Changing the

~

2

1

■

not

encouraged

to

change the

jumper
jumper

2-2

Mainboard Settings

Mainboard Settings

2-3

CPU Jumper Settings: JCJ, JC2, JC3, JC4, JCS,

RNA, RNC,

Intel:

486SXIDXIDX2; DX4 ODP; P24S; P24D; P24T;
lntelDX4-

(Double-Speed: A80486DX4-XX*,

Triple-Speed: A80486DX4-XX*)

RN/

--

JC1

486SX

1-□

486DX/DX2
P24S
DX4 ODP
P24D
P24T
DX4

(Double-Speed)

DX4

(Triple-Speed)

* When using this processor, please refer to page 2-5 for more information about

jumper

10

10

~]

10

[o~

setting.

1

- 1

- 1

- 1

-

I--------

JC2 JC3

--

--·-·

- 1

---

Is:@_)

---

---·--

Is:@_)

Is:@_)

-

··-

Is:@_)

----

!2EI

Is:@_)

--

----

~]

-·-- - -

10-11

10

~

10.-1

~I

JC4

----·I-

(oQ}1]

---

1-01

10

~ 1

[o~

----

1-01

---·-

~

-··- - ,,__

~---

~--

--

~

@]

-

Is:@_)

@::s

Is:@_)

~

~

@__g]

!2EI

5

~0:~•

I rr:::::=..::i I

I

o:::==-_J

I

rr==:.:i

I

o:=::=...:::i

o=-==:J

I

IL---=::J

I

[L---===:J

I rr:::___::__:J I ••iii:t:mi

t'

I ••id:t;U-• I

I li.filim.lll:_j

I .... ,a1;,1;1

__l

_j

AMD:
486DX2-

(A80486DX2-XXVBT*, A80486DX2-XXNVBT*);

486DX4-

·

(AB0486DX4-100NVBT*, A80486DX4-XXSVBB*,
Am486DX4-1 00VBT*);

AMD-X5*

---

486DX2

JC

[

10

-

- 1

JC2

~

10-11

Enhanced

G

setting.

1°

~

~

[oi

@:Nj

[o

10-1]

486DX2
486DX4

•

Enhanced

486DX4
AMD-X5

L..........._

. ' -

* When using this processor, please refer to page 2-5 for more information about

jumper

- 1

[o

[o"1

t----

~

--

10,_1

"1

,--

-

JC3

~

~-

Is:@_)

Is:@_)

Is:@_)

Is:@_)

--

r----

JC4

10001

I

'"

loo

IO<NI

l<N□

□

□

I

I

!

JCS

Is:@_)

Is:@_)

Is:@_)

Is:@_)

Is:@_)

RNA

1

Dlil'lml

rr::::=:::J

ranm

rr::::=:::J

rr::::=:::J

RNC

1

rr::::=:::J

rr::::=:::J

rr::::=:::J

rr::::=:::J

rr::::=:::J

RNI

1

l•-111·1 I

1•-liiiil

lla911·1 I

!

RNA

JC1

RNc',
Jc2'RNI
Jc3'
Jc4'

Jes·

486-PI0-3

RNA,
RNC,

JC

1

jgfjRNI

JC4,

J\

□

486-PI0-3

2-4

UMC :

(USSX-SUPERXX, U5SO-SUPERXX,

Cyrix :Cx486DXIDX2/DX4 -

(Cx486DX-XXGP, Cx486DX-VXXGP*,

Cx486DX2-XXGP, Cx486DX2-VXXGP*, Cx486DX4-100*);
5x86­(5x86-100*, 5x86-120*)

Tl : (T/486DX2-G66-GA

T/486DX4-G100-GA

USSD

USS

USSLV

Cx486DX/DX2
Tl486DX2/DX4

Cx486DX4
5x86

*When.using

jumper

U5S/U5SDIU5SL

JC1

10
1~01

10

10

this processor, please refer to page 2-5 for more information about

setting.

JC2

- 1 10- 1
1-01

- 1 10- 1

- 1 10- 1

V -

*,

T/486DX2-G80-GA

*)

JC3

@:Q]

[QJ:i]

@:Q]

@:Q]

JC4

loo

loo□I

loo□I

10

□

~ 1

I

usSL

JCS

@:Q]

@:Q]

@::g]

@:Q]

Mainboard Settings

V-SUPERXX*);

*,

RNA

1

liDilm

liliEm

rr==::::J

rr==::::J rr==::::J

RNC

1

rr==::::J

rr==::::J

llllll1Im

RNI

1

"

ll

1,w-1:c,1-:a

Mainboard Settings

Low-Voltage

CPU
Voltage
Type

3.3V

3.45V

3.6V

CPU

Jumper
Setting

JPW1 I o
JPW2

JPW1

JPW2

JPW1
JPW2 I O Ooa) I

Jumper Setting

Ooal

I

loo□!

1-□

loo □

loo□!

UMC-

U5SLV-SUPERXX

AMO -

I

A80486DX4-1 00NVBT A80486DX2-XXSVBB

I

A80486DX2- XXNVBT Am486DX2- XXVBT
A80486DX4- XXSVBB Am486DX4- 100V8T

INTEL
Cyrix

Tl

Cyrix -

Cx486DX-VXXGP

A80486DX4- 75

5x86-100

T/486OX2-G66-GA
Tl486OX2-GB0-GA

CPU Model

AMO-

AMD-X5

A80486DX4- 100

5x86-120

T/486OX4-G100-GA

2-5

•

4.0V

CN_3V

JPW1
JPW2

1

,,

1

3 4

11--12

3 tN> 4

lo

o□l

i-□

1~

Cyrix-

I

Cx486DX2-V80GP

For

3.3V,

and 4.0V CPUs

For 5V CPUs (Default)

3.45V, 3.

6V

RNA,

JC1 RNC,
jgflRNI

JC4,

J\

~

□

486-PI0-3

JPW1,
JPW2

llr

ou

0 1

486-PI0-3

2-6

CPU

Clock Jumper Setting

50MHz

DX-50

JK1
JK2

JK3

10
1~01

[o

~ 1

M I

40MHz

DX-40

DX2-80 DX-33

lo
loMJI

1~

M I

01

33

.3

MHz

SX-33

DX2-66
DX4-100

XS

l

(j,i)

f

(j,i)

lo

(Default)

-133

o I
o I

M l

Mainboard Settings

25MHz

SX-25
DX

-25
SX2-50
DX2-50
DX4-75

k~

)J:j]

IQ

~

!N

ol

Mainboard Settings

Password Clear:

JCP

Display Type Select: VIDEO
KB

LOCK

TB

LED Mode Select:

Password Clear
Enabled
Disabled (Defalut)

Mode Select: J2

J3

JCP

1- 1

~

KB_LOCK Mode

IOCHCK
KB_.LOCK (Default)

1°
1~

J2

~ 1

2-7

0

1

JK4

JT1,
JCK

10

~ 1

1°

l

@-@J 01

- 1

lo

equal

~

to

33

M I

33

MHz

IQ

MHz.)

.)

lo

M I

PC/

Bus Clock Select

(When the processor clock is less
than

or

PCI Bus Clock = Processor Clock
(Default)

(When the processor clock is
greater than

PCI Bus Clock = Processor Clock / 2

JCK

J

=

~

Display Type
Mono/EGAN

(Default)
CGA

GA

J3 l

l

~

VIDEO

1- 1

~

TB_LED Mode

G_LED
TB_LED (Default)

VIDEO

JCP

J2

~

LJ

J3

1- 1

~

JK3, JK4,
JT1

486-PI0-3

486-PI0-3

2-8

Mainboard Settings

W83787F/787IF Controller: JWJ,

W837871F/877F
COM2

Infrared

ECP Mode
DMA 1 (Default)

DMA3

Printer Port Direction

OUTPUT
Bidirection (Default)

Programmable Flash
EPROM Type

Intel 28F001BX-T

SST 29EE010

JW1

1°

- 1

1-

JW3

10

- 1

1-

Jl1

~

IQg]

J1

10

- 1

1-

0

1

0

1

0

1

JW2,

JW2

~

~ p]

'4

JW

@::_

~ ]

j

1-01

JW3, JW4,

-

Jll,

Jl

Cha~ler3

System Memory

The 486-PI0-3 can be equipped with the necessary memory for running all your
applications. Memory comes
This chapter describes these two types
to install each type on the mainboard.

Memory Locations

The board layout below shows the locations
cache SRAM:

I

in

the form

of

DRAM (SIMMs) and cache

of

memory and gives instructions on how

of

the DRAM memory banks and the

SRA,M.

'

--

"'

"'

f

f

ii

~

a,

a,

,.

~

z

"i

6

~

0

D'

JW1, JW2,

JW4,

JW3,
Jl1

J1

'

486-PIO-3

"-

[[]

I

]

486-PIO-3

.._

.._

~

M1

~ M2

C,

M3

~

alal

JS3
JS2 JSS
JS1

C,

M9

M4

JS,

~

MS

JS<

~

MS

~ M7
~

MB

I

I
I
I
I

I
I
I

I

3-2

System Memory

System Memory

3-3

Installing DRAM

SIMM

The 486-PIO-3 can accommodate onboard memory from I to 64MB using SIMMs
(Single-In-Line Memory Modules, one
two memory banks - Bank 0 and Bank I. Each bank has two SIMM sockets which

can accept either a I, 4,

DRAM

Memory may be installed as suggested
start the installation from Bank 0 or Bank I.

Banks

Configuration

TOTAL MEMORY

1MB 1MB
2MB 1MB 1MB
4MB
5MB 4MB 1MB

8MB 4MB 4MB
16MB 16MB
17MB 16MB 1MB
20MB 16MB
32MB 32MB
33MB
36MB

48MB
64MB

➔

NOTE :

SIMM

shown below.) The main board has

16

or 32MB SIMM

· BANKO
(72-PIN x

~II

mem<>ry~anks use !~:pin memory

in

each socket.

in

the following table. It does not matter to

2)

4MB

32MB
32MB
32MB
32MB

BANK1

(72-PIN x 2)

4MB

1MB
4MB

16MB

32MB

~<>dul~~:

J

Installation Instructions

➔

--

NOTE : Always observe static electricity precautions. See \

"Handling Precautions" at the start of this manual.

I. Locate the SIMM banks on the main board .

I

BANKO,

BANK1

~-~

l·l

_J

L

[_:

j---,-

J

2. Insert the SIMM edge connector onto the socket.

CD

~-

~

3. Carefully push the SIMM down and back into the socket
until the retaining clips
SIMM

I

To remove the SIMM/s, pull the retaining latch on both ends
reverse the procedure above.

pins on the socket's retaining clips.

~

in

place. The holes

of

the socket snap, holding the

in

@

~

~==-

Jr

4,~

~-

--~~

the SIMM should match the

=1

f·

z-sc.

'!!

c--=

of

the socket and

00

486-PI0-3

486-PI0-3

3-4

System Memory

System Memory

3-5

Cache Memory

The 486-PI0-3 can accept cache SRAM

. ages. Every time the CPU wants to write data to the external memory,

location in SRAM
the DRAM.

➔

---

NOTE

~-a~~~~~~~~;~;;~~:~:~~:~~h~;;~:{;;c~~~he

is

a "hit", it writes this data to the cache RAM directly, not to

: Use the correct chips

Installing Cache Memory

➔

~---

ff

you do not have the confidence to make the installation, better consult a service

technician for assistance.

Correct orientation
Normally, the chips have either a curved notch or a dot. This marker
must be matched to the marker on the socket for correct alignment.

Install the chips individually

NOTE

: Always observe static electricity precautions.

"_

Handling

I. Locate the cache memory

2.

Be guided by the Cache SRAM settings depending on

your desired SRAM configuration.

3. Align the chip with the marker
chip onto the socket, ensuring that the pins
are aligned with the corresponding connections on the
socket.

4. Press the chip completely into the socket so that the pins
. are properly seated.

Precautions"

of

the chip

as

is

follows:

of

128K/256K/512K/1MB

for

the amount of cache I

at

the start of this

on

the mainboard.

necessary for the cache to operate properly.

on

the socket. Press the

on

the chip

in

rri~nlJal.

on

DIP pack-

the chip

if

the

and

See

J

r

128KB Cache SRAM

JS3

•

JS2
JS1

M9

:·=

II

~

11111111

I

1111111111111111111
1111111111111111111

I

1111111111111111111
111111

I

1111111111111111111
111111111 111111111

l§

E1

I

1111111111111111111

JS6
JS5
JS4

JS1, JS6

JS2,

JS3

CJ

:•

II

I

1

II

JS4,

JS5, J

~

M9

(TA

g_§

111111111111

!•

M1, M2,
M3, M4,
MS,
M7, M8

(DATA

~

§

~~

1111111111

32Kx8

32Kx8

M6,

SRAM)

c

~-~

~

c:-~

M1

M2

M3

M4

M5
M6

M7

MB

::i

7

486-PI0-3

486-PI0-3

3-6

System Memory

System Memory

3-7

256KB Cache SRAM

r

m1

i

iR_

JS3
JS2
JS1

M9

~·~

••

~

□

~

taiiJ

JS6
JS5
JS4

~.~

32Kx8

32Kx8

32Kx8

~.~

~.~

1

32Kx8

~.~

M1

M2

M3
M4

MS

M6
M7
MB

256KB Cache SRAM (The Alternative Insertion)

••••••••

I

••••••••••

•••••••••••••••••••

•••••••••••••••••••

I

•••••••••••••••••••

••••••••

I

•••

•••••

•••••••••••••••••••

•••••••••••••••••••

I

•••••••••••••••••••

• 64Kx8

64Kx8

M9

l

JS3
JS2
JS1

~ • ~

• •

~

i:1

§El

JS6
JS5
JS4

M1

M2

M3
M4

MS

M6
M7
MB

JS4, (DATA

JS1, JS6
JS2, \

~

[

. , (TAgsRA~

• L

JS5, '

S3''

----,]

M9 [

4B6-PI0-3

M1, M2,
M3, M4,
M5, M6,
M7,

SRAM}

~

El

ca

t

_{

~-

MB

i

_:i

--::i

-:_i

JS4, (DATA

JS1, JS6
JS2, \

JS3

,--it

[

~-

JS5, '

'-._

·-7

'

M9

j '"t

486-PI0-3

M1, M2,
M3, M4,
M5, M6,
M7,

MB

SRAM}

·

~

§ . ~ - .::J

i-

~

i::

'SAM

l :

-=~

7

-

_J

=-

=-.i

~

3-8

System Memory

System Memory

3-9

512KB Cache SRAM

IB

JS3
JS2
JS1

M9

~ I ~

II~

■

JS6
JS5

JS4

11111111

I

1111111111111111111
11111111

I

1111111111111111111
1111111111111111111

I

1111111111111111111
1111111111111111111

I

1111111111111111111

111111111

1111111111

128Kx8

M1

M2

M3
M4

MS
M6
M?
M8

512KB Cache SRAM (The Alternative Insertion)

• 64Kx8

• 64Kx8

• 64Kx8

• 64Kx8

• 64Kx8

• 64Kx8

M9

11

JS3
JS2
JS1

§1

IEI

JS6
JS5
JS4

M1

M2
M3

M4

MS
M6

M7

M8

1 JS1, JS6 .

JS2, \

JS3

'-...

-

.

]7

]

[..

I

t:::

' (TAG

-

486-PI0-3

M1, M2,

M3, M4,
MS,

M6,

M7,M8

JS4, (DATA

$RAM)

JS5, l

=---.J

.

~

..

El

'

M9 •

SRAM)

====-1

=,.::J

c--=

~~--J

=·----,

--.:::i

=-~

JS4

JS1, JS6
JS2, \
JS3 ,

Jss'.

1

l_J1

,~i

486-PI0-3

:~= "

M1, M2,

M3,M4,
M5, M6,
M7, M8

(DATA

$RAM)

l

~

3-10

System Memory

1MB Cache SRAM

ii §

JS3
JS2

JS1

M9

-

D

1H

JS6

JSS

JS4

128Kx8

I• 128Kx8

• 128Kx8

128Kx8

• 128Kx8

M1

M2
M3

M4

MS

M6

M7

MS

ChapttJr4

Award BIOS Setup

The 486-PIO-3 comes with the Award BIOS chip that contains the ROM Setup

of

information
and the rest
contained
to your system configuration.

your system. This chip serves as

of

the mainboard's components. This chapter explains the information

in

the Setup program and tells you how to modify the settings according

CMOS Setup Utility

STANDARD CMOS SETUP SUPERVISOR PASSWORD
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP £AVE & EXIT SETUP
PCI CONFIGURATION SETUP
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS

Esc : Quit
F10 . Save & Exit Setup

Time, Date, Hard Disk Type ...

ROM PCI/ISA BIOS (2A4L6FOA)

CMOS SETUP UTILITY

AWARD SOFTWARE , INC .

an

interface between the processor

USER PASSWORD
IDE HOD AUTO DETECTION

EXIT WITHOUT SAVING

t i

➔

+-

: Select Item

(Shift) F2 : Change Color

JS4,

JS1, JS6
JS2, \

~~

J~~

[

, - I f _

~

T

JSS,

-

~,

7

n

I M9 ,..:-:-:-]

J I (TAG

---~

486-PI0-3

M1, M2,
M3, M4,
MS, M6,
M?, M8

(DATA SRAM)

El§~~

S~A"'1)

__:i

'

~~

E

~-~-:::_]

c___::

___

--:i

A Setup program, built into,the system BIOS,
Setup utility program allows changes to the mainboard configuration settings.
executed when the user changes system configuration; user changes system backup
battery; or the system detects a configuration error and asks the user to run the
Setup program. After power-on RAM testing, the message

SETUP

selected program .

." appears. Use the arrow keys to select and press <Enter> to run the

486-PI0-3

is

stored

in

the CMOS RAM. This

"Press

DEL

to_ enter

It

is

4-2

Award BIOS Setup

Award

BIOS

Setup

4-3

Standard CMOS Setup

ROM PCI/ISA BIOS

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

dd:yy\

: Thu,

Mar

Date (mm:

mm

:ss : 15 : 28 :

Time {hh:

HARD

DISKS

Primary Master : None ·0 0
Primary Slave . None
Secondary Master · None
Secondary Slave : None

Drive A : 1.2M, 5.25 in.
Drive B : None

EGANGA

Video .
Hatt On : All Errors

ESC : Quit

F1

: Help

The Standard CMOS Setup screen

9 1995

37

TYPE

SIZE CYCLS HEAD PRECOMP LANDZ

0

0

0

0

0

0

ti-

►

: Select Item

(Shift) F2 : Change Color

is

displayed above. Each item may have one or
more option settings. The system BIOS automatically detects memory size, thus
no changes are necessary. Use the arrow keys to highlight the item and then use the

<PgUp> or <PgDn> keys to select the value you want

Hard Disk Configurations

TYPE:

values
Select

Select from

of

disk drives. Select "User" to fill the remaining fields.

"Auto"

"l"

to "45" to fill remaining fields with predefined

to detect the HDD type and mode automatically.

SIZE : The hard disk size. The unit
CYLS:

The cylintler number

(2A4L6F0A)

0
0
0 0
0

is

Mega Bytes.

of

the hard disk.

SECTOR

0

0

0

0

0
0

0

Base Memory: 640K

Extended Memory:

Other Memory: 384K

Total Memory: 8192K

PU/PD/+/- : Modify

in

each item.

0
0
0
0

MODE

------

------

------

------

7168K

MODE : Some hard disks support LBA mode for data transfer.If your

disk supports this feature, select

"LBA". Otherwise, select "Normal" .

Please refer to the IDE HDD Auto Detection section on page·
configuration

of

new hard drives.

4-l7

for a quick

HEAD:
PRECOMP

The read/write head number

of

hard disk

: The cylinder number at which the disk drive changes the

write timing .

LANDZ : The cylinder number that hard disk drive heads (read/write)

are seated when the disk drive

SECTOR

The range

: The sector number

is

from

"l"

to "64".

is

parked.

of

each track defined on the hard disk.

486-PI0-3

486-PI0-3

----

4-4

Award BIOS Setup

BIOS Features Setup

ROM

PCI/ISA

BIOS

BIOS FEATURES SETUP

Virus Warning Disabled Video BIOS Shadow Enabled

External Cache Enabled C8000 - CBFFF Shadow Disabled
Quick Power
Boot Sequence

Swap Floppy Drive Disabled D4000 - D7FFF Shadow Disabled
Boot
Boot
Gate A20 Option Fast

Memory Parity Check Disabled

Typematic Rate Setting Disabled

Typematic Rate (Chars/Sec) 6

Typematlc Delay (Msec) 250

Security Option Setup

PCINGA Palette Snoop Disabled

On

Self

Up

Floppy Seek Enabled D8000 - DBFFF Shadow Disabled

Up

NumLock Status

AWARD SOFTWARE

Test

Disabled CC000- CFFFF Shadow Disabled
A,

C D0000 - D3FFF Shadow Disabled

On

Moving around the BIOS Features Setup program shown above works the same
way

as

moving around the Standard CMOS Setup program. Users are not encour­aged to run the BIOS Features Setup program. Your system should have been
fine-tuned before shipping. Improper Setup may cause the system to fail, consult
your dealer before making any changes.

Virus Warning

When enabled, assigns the BIOS to monitor the master boot sector and
the DOS boot sector

of

the first hard disk drive.

The options are: Enabled, Disabled (Default)

External Cache

When enabled , supports an optional cache SRAM.
The options are: Enabled (Default), Disabled

Quick Power

On

Self Test

When enabled, allows the BIOS to bypass the extensive memory test.
The options are: Enabled, Disabled (Default)

(2A4L6F0I)

INC

.

DC000- DFFFF Shadow Disabled

ESC Quit
F1

Help

F5

Old

F6

Load

F7

Load Setup Defaults

t i

PU

/DD/+/- : Modify

Values (Shift)

BIOS

Defaults

-+ +-: Select Item

F2

: Color

Award BIOS Setup

Boot Sequence

Allows the system BIOS to first try
the selected disk drive.

The options are:

Swap Floppy Drive

Allows you to switch the order
the floppy drives during boot up.

The options are: Enabled, Disabled (Default)

Boot Up Floppy Seek

When enabled , assigns the BIOS to perform floppy diskette drive tests
by issuing the time-consuming seek commands.

The options are: Enabled (Default), Disabled

Boot Up Numlock Status

When set to On, allows the BIOS to automatically enable the Num Lock

Function when the system boots up.
The options are: On (Default),

Gate A20

When set at Fast, allows a faster access response under Protected mode.
The options are: Fast (Default), Normal

Memory Parity Check

When enabled, allow DRAMs to execute the parity bit check.
The options are: Disabled (Default), Enabled

Typematic Rate Setting

The term "typematic" means that when a keyboard key
the character

item

is

The options are: Disabled (Default), Enabled

to

boot the operating system from

A,

C (Default); C, A

in

which the operating system accesses

Off

O_e_tion

is

repeatedly entered until the key

is

released. When this

enabled, you may change the typematic repeat rate.

4-5

is

held down,

486-PI0-3

486-Pl0-3

---

4-6

Typ_ematic Rate

Sets the rate
The options are: 6 (Default),

Typematic Delay

Sets the delay time before a character

The options

_{_Chars/Sec)

of

a character repeat when the key

8,

IO,

12,

15,

{P,llsec}

is

repeated.

are:

250 (Default), 500, 750, 1000 millisecond

Award BIOS Setup

is

held down.

20, 24, 30

Security Option

Allows you to set the security level

of

the system.

The options are: Setup (Default), System

PCINGA

Palette Snoop

When enabled, allows you to install an enhanced graphics adapter card.

If

your graphics adapter card does not support the Palette Snoop func-

tion, please set at Disable to avoid system malfunctions.
The options are: Enabled, Disabled (Default)

Video BIOS

Allows the BIOS to copy the video ROM code

Shadow

of

the add-on video card

to the system memory for faster access.
The options are: Enabled (Default), Disabled

C8000-CBFFF to DC000-DFFFF Shadow

Allows the BIOS to copy the BIOS ROM code

It

system memory for faster access.

may improve the performance

of

the add-on card to

add-on card.

if

Some add-on cards will not function properly

its BIOS ROM code
shadowed. To use these options correctly, you need to know the memory
address range used by the BIOS ROM

of

each add-on card.

The options are: Enabled, Disabled (Default)

of

the

is

Award BIOS Setup

Chipset Features Setup

ROM

PCI/ISA BIOS (2A4L6F0I)

CMOS SETUP UTILITY

Auto

Configuration Enabled

Decoupled Refresh Enabled

Video BIOS Cacheable Enabled

System BIOS Cacheable Enabled
Combine Alter &
CHRDY for ISA Master Enabled
Memory Hole At 15Mb Addr. Disabled

Cache

Timing

DRAM Timing Control Fast
Fast DRAM Enabled

Control

Auto Configuration

When enabled,
AT Bus Clock. Therefore,
have to set at Disabled here.

The available options are: Enabled (Default), Disabled

Decoupled Refresh

When enabled, the onboard DRAM will be decoupled from ISA bus

memory device so that the processor can re-access the onboard DRAM
without waiting for the completion

Disable this

if

The available options are: Enabled (Default), Disabled

Video BIOS Cacheable

When enabled, allows the system to use the video BIOS codes from

SRAMs, instead

The available options are: Enabled (Default), Disabled

CHIPSET FEATURES SETUP

Tag

Bits Disabled

Fast

it

will not allow you to select the options

if

you are using the ISA type ET-4000 VGA card.

of

the slower DRAMs or ROMs.

4-7

Onboard local bus IDE

HOD

Block Mode

IDE
IDE Primary Master PIO
IDE Primary Slave PIO
2nd IDE Controller

FDD

Onboard
Onboard Serial Port 1
Onboard Serial Port 2
Onboard Parallel Port
Onboard Parallel Mode

ESC
F1
FS
F6
F7

Controller

Quit t i ➔
Help PU/DD/+/- . Modify
Old Values (Shift)
Load BIOS Defaults
Load Setup Defaults

Enabled
Enabled

Auto

Auto
Enabled
Enabled
COM1

at 3F8h
COM2 at 2F8h
378H

Normal

+-

: Select Item

F2

: Color

in

the feature

you want to select the AT Bus Clock, you

of

ISA bus memory refresh.

486-PI0-3

486-PI0-3

4-8

Award BIOS Setup

Award BIOS Setup

4-9

System BIOS Cacheable

When enabled, allows the ROM area F000H-FFFFH to be cacheable
when cache controller

is

activated.

The available options are: Enabled (Default), Disabled

Combine Alter & Tag Bits

When enabled, allows the alter bit to check

if

external cache executes

data write-back to main memory or not.
The available options are: Enabled, Disabled (Default)

CHRDY for ISA Master

When enabled, allows the system BIOS to extend the ISA Master cycle

for ensure operation.

The available options are: Enabled, Disabled (Default)

Memory Hole At 15M Addr.

When enabled, the memory hole at the 15MB address will be relocated

15

to the

- I 6MB address range

accesses the

15

- I 6MB address area.

of

the ISA cycle when the processor

When disabled, the memory hole at the 15MB address will be treated

a DRAM cycle when the processor accesses the 15- I 6MB address area.
The available options.are: Enabled, Disabled (Default)

Cache Timing Control

When enabled, allows the system to adjust the data access speed

VT82C496G Controller to external cache.
The options are: Normal, Medium, Fast (Default), Turbo

DRAM Timing Control

When enabled , allows the system to speed up the data access

VT82C496G .
The options are: Normal, Medium, Fast (Default)

as

of

of

Fast DRAM

When enabled, allows the processor to access DRAM
enable it

;

ifno

cache memory inserted.

in

page mode

The available options are: Enabled (Default), Disabled

Onboard Local Bus IDE

When enabled, allows IDE drives to use the 496G Local Bus IDE
Controller.

The available options are: Enabled (Default), Disabled

IDE HDD Block Mode

When enabled, allows the system to execute read/write
disk

in

block mode.

request!?

The available options are: Enabled (Default), Disabled

IDE Primary Master PIO

Allows you to select the first PCI IDE channel

it

disk mode or to detect

by the BIOS.

of

the primary master hard

The available options are: Auto (Default), Mode 1, 2, 3, 4

IDE Primary Slave PIO

Allows you to select the first PCI IDE channel

disk mode or to detect

it

by the BIOS.

of

the primary slave

The available options are: Auto (Default), Mode 1, 2, 3, 4

2nd IDE Controller

Enable it

if

IDE drives use the onboard standard ISA IDE controller.

The available options are: Enabled (Default), Disabled

Onboard FDD Controller

When enabled, the floppy diskette· drive (FDD)

is

activated.

The available options are: Enabled (Default), Disabled

if

to hard

ha~d

486-PI0-3

486-Pl0-3

4

-10

Award BIOS Setup

-

Award

BIOS

Setup

4 -

11

Onboard Serial Port 1

If

the serial port I uses the on board

If

serial port parameters.

an

1/0

controller, you can modify your

1/0

card needs to be installed,

COM

COM 4 may be needed.

COMI

The options are:

at 3F8h (Default), COM2 at 2F8h, COM3 at

3E8h, COM4 at 2E8h

Onboard Serial Port 2

This item
If

The options are:

is

similar to the one above, but applicable to the serial port 2.

an

1/0

card needs to be installed, COM 3 or COM 4 may be needed;

COMI

at 3F8h, COM2 at 2F8h (Default), COM3 at

3E8h, COM4 at 2E8h

Onboard Parallel Port

Select from a given set

1/0

controller.

of

parameters

if

the parallel port uses the onboard

The options are: 278H, 3BCH, 378H (Default), Disabled

Onboard Printer Mode

Allows you to connect with an advanced printer.
Select

"Normal" for standard parallel port (SPP) used on IBM PC/XT,

PC/

AT

and bi-directional parallel port. Select "Extended" for extended

parallel port . Select

"EPP Mode" (or enhanced parallel port. Select

"ECP Mode" for Microsoft and HP Extended Capabilities Parallel Port.

The options are: Normal (Default), Extended, EPP Mode, ECP Mode

3 or

Power Management Setup

For

Regular Processors:

ROM PCI/ISA BIOS (2A5L9F09)

SEfUP

CMOS

POWER MANAGEMENT SETUP

For

SMM

Power Management
Suspend Timer
HDD Power Management

Processors:

Power

Management

Doze Timer

Sleep Timer
Sleep Mode Suspend
HDD Power Management Disabled

VGA Activity Wakeup Disabled

: Disabled
:8min
: Disabled

ROM PCI/ISA

POWER MANAGEMENT SETUP

: Disabled

: 2min

CMOS

2min

BIOS

SEfUP

UTILITY

ESC Quit

Help

F1

Old Values

F5

Load BIOS Defaults

F6

Load Setup Defaults

F7

(2A5L9F09)

UTILITY

IRQ3

Activity

IRQ4

Activity

IRQ5

Activity

IRQ7

Activity
IRQ 8 Activity
IRQ 10 Activity
IRQ

11

Activity

IRQ 12 Activity

.

: Select Item

11--

PU/PD/+/- : Modify
(Shift)

F2

: Color

Primary

Primary
Primary
Primary
Secondary

Primary
Primary
Primary

486-PI0-3

ESC Quit
F1
F5
F6 Load BIOS Defaults
F7 Load Setup Defaults

486-PI0-3

Help
Old Values

t,-

....

: Select Item

PU/PD/+/- : Modify

F2

· Color

(Shift)

4 - 12 Award BIOS Setup

Many PC users never tum their computers
operating system or applications. An energy efficient mainboard combats such
energy waste by using System Management Mode

processor clock control to conserve energy.

During periods

of

inactivity, the system automatically initiates a power saving

mode, reducing both the system and monitor power. The Power Management

Setup allows you to blank out the VGA display, slow down processor speed, and
tum

offHDD

Some

spindle motor during a set period

SMM processors include a Doze, Sleep, and Suspend feature

mode which allows the processor to reduce power consumption.

Power Management

When enabled, allows you to use the Power Management features.
The available options are: Enabled, Disabled (Default)

Doze Timer

Processor speed will slowdown and enter "Doze Mode" assuming there
is

no operation during the selected period. Normal processor speed

resumed by pressing any key.

off

because

of

delays

in

reloading their

(SMM), static technology, and

of

time.

in

Suspend

is

Award BIOS Setup

VGA

Activity Wakeup

When enabled, allows the Doze Timer to start counting when no activity
is

detected on the VGA display.

The available options are: Enabled, Disabled (Default)

IRQ#

Activitt

When set at "Primary" the processor will power down only after the
BIOS detects a
Suspend timer.
whether an interrupt accesses
enters the standby mode.
that

is

the system goes back to full-on status but leaves the monitor blank.

For instance,
from its file server, the system will enter the dreaming mode to execute
the corresponding calling routine.

The options are: Primary, Secondary

The default values

The default value

4 - 13

"no IRQ activity" during the time specified by the

If

set at "Secondary event", the system will distinguish

an

I/0

address or not.

If

not, the system enters the dreaming mode;

if

the system connects to a LAN and receives an interrupt

ofIRQ3,

of

IRQ8

4,

5,

is:

Secondary

7,

10, 11,

If

12

are: Primary

it does, the system

The options are: 8 sec, 32 sec, 2 min (Default), 8 min,

Susp_end

Allows you to select a specified period
the

The available options are:

Susp_end

Timer

"Suspend mode".

Mode

2,

8 (Default),

of

time before the system enters

16

and 32 min.

16

min.

When enabled, the mainboard enters the "Suspend Mode" ifthere
operation during the specified period

in

the Suspend Timer.

The options are: Enabled (Default), Disabled

HOD Power Management

Allows the HDD spindle motor to tum
The options are: Disabled (Default),

off

after a certain time period.

5,

10, 15,

20 min.

486-PI0-3

is

no

486-PI0-3

4 - 14

Award BIOS Setup

Award BIOS Setup

4 - 15

PCI Configuration Setup

ROM

PCI/ISA BIOS (2A4L6F0I)

PCI

CONFIGURATION SETUP

AWARD SOFTWARE INC.

PCI

PnP BIOS Auto-Config Enabled CPU to
Slot 1 Using INT#
Slot 2 Using INT#

Slot 3 Using INT#

PCI

IRQ Aclived

PCI

IDE IRQ Map o PCI-AUTO

Primary

IDEINT#

Secondary IDE INT#

AUTO
AUTO
AUTO

Level

Bt

A

B

PCI Master WRITE BUFFER
PCI Master PRE-FCH BUFFER Enabled
PCI

WRITE BUFFER

Master 1 WS Write

ESC Quit

F1

Help
Old Values (Shift)

F5
F6

Load BIOS Defaults

F7

Load Setup Defaults

t J

PU/DD/+/· : Modify

The 486-PIO-3 mainboard provides three PCI card slots, marked PCI
3, respectively. They can be used either as a master slot or a slave slot. A master
slot

is

an

agent slot that initiates a bus transaction. A slave slot, on the other hand,

is

an agent slot that responds to a bus transaction initiated by a master slot. The

following provides a brief description

of

the various features found

Configuration Setup utility.

PnP BIOS Auto-Confi.9.

When enabled, the available IRQs used on the ISA slots are configured
automatically by the BIOS.

The options are: Enabled (Default), Disabled

Slot 1-3

Using_

INT#

Allows the BIOS to automatically detect which interrupt is used by the
add-on card

in

the selected PCI slot.

The options are: AUTO (Default), A, B, C, D

Available IRQ

Allows the BIOS to assign an available IRQ

if

needs an IRQ path to access the mainboard.
The options are: NA,

5,

9,

10, l

l,

14,

15

Enabled
Enabled

Disabled

-+

+-

: Select Item

F2

: Color

1,

PCI 2, PCI

in

the PCI

the attached PCI device

PCI IRQ Activated

By

We suggest that you set this to its default configuration unless you are a
qualified technician.

The options are: Level (Default), Edge

PCI IDE IRQ

Map_

To

Set "PCI-AUTO" to allow the system BIOS to automatically detect the
add-on PCI IDE card interrupt used by the PCI hard disk drive.

The options are: PCI-AUTO (Default), PCI-SLOTI, PCI-SLOT2, PCI­SLOT3, PCI-SLOT4, ISA

CPU

to

PCI Write Buffer

When enabled, allows data and address access to the internal buffer
VT82C505 so that the processor can be released from the wait state.

The options are: Enabled (Default), Disabled

PCI Master Write Buffer

When enabled, allows the PCI write operation by informing the proces­sor

of

pending data from the PCI device. Processor

is

released from

waiting state by a signal from the master card.

The options are: Enabled (Default), Disabled

PCI Master Prefetch

When enabled, allows the data and address to be saved in the internal
buffer ofVT82C505 to reduce master drive access time.

The options are: Enabled (Default), Disabled

PCI Master 1WS Write

When enabled, allows one more wait state cycle delays when the PCI
master drive writes data to DRAM.

The options are: Enabled, Disabled (Default)

of

486-PI0-3

486-PI0-3

4 - 16

Award BIOS Setup

Award BIOS Setup

4 - 17

Interrupt

Assignments

SLOT

PCI Slot 1

PCI

Slot2

Slot3

PCI

of

PC/

INT OF SLOT

Slots

INT OF VT82C505

A A

B

C C

D D

A

B

C

D

A

B
C
D

Supervisor/User Password

To enable the Supervisor/User passwords, select the item from the Standard CMOS
Setup. You will be prompted to create your own password.

B

B
C
D

A

C

D

A

B

Type your password up to eight characters and press

<Enter>. You will be asked

to confirm the password. Type the password again and press <Enter>. You may
also press
password, press
appears, confirming the password

Under the BIOS Feature Setup (refer to page 4-4)
Security Option field and the
prompted for the Supervisor Password every time you reboot the system.
is

selected and the User Password

<Esc> to abort the selection and not enter a password. To disable

<Enter> when you are prompted to enter password. A message

is

disabled.

if

System is selected under the

Supervisor Password

is

enabled, you will be requested to enter the

is

enabled, you will be

If

System

User Password before booting and every time you try to enter the CMOS Setup.
If

Setup

is

selected under the Security Option field and the User Password

is

enabled, you will be prompted only when you try to enter CMOS Setup.

Clear Password

If

you forget your password,

the system unit cover. Locate Jumper JCP and insert the

tum

off

the system power first and remove

jumper

cap.
Then, you may power on the system. At this point, you will not be asked
for the password to enter Setup.

Load

BIOS defaults contain the most appropriate values

BIOS Defaults

of

the system parameters that
allow minimum system performance. The OEM manufacturer may change the
defaults through MODBIN before the binary image bums into the ROM.

Load

Setup Defaults

Selecting this field loads the factory defaults for BIOS and Chipset Features which
the system automatically detects.

486-PI0-3

/DE HOD Auto Detection

The IDE Hard Disk Drive Auto Detection feature automatically configures your
new hard disk. Use it for a quick configuration

486-PI0-3

of

new hard drives.

4

-18

Award BIOS Setup

Save

and

Exit Setup

ROM PCI/ISA BIOS (2A4L6F0A)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.
STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP

c-

PCI CONFl
LOAD BIOS _

LOAD SETUP DEFAULTS 7

Esc : Quit
F10 : Save

-

··-

SAVE to CMOS and EXIT (YIN)? Y

& Exit Setup

SAVE DATA TO CMOS and EXIT SETUP

SUPERVISOR PASSWORD
USER PASSWORD
IDE HOD AUTO DETECTION

& EXIT SETUP

SAVE

--

]

-

t

~

-+ +-: Select Item

(Shift) F2 : Change Color

-

After you have made changes under Setup, press <Esc> to return to the main menu.
Move cursor to "Save and Exit Setup" or press "FlO" and then press "Y" to
change the CMOS Setup.
move cursor to

"Exit Without Saving" and press "Y" to retain the Setup settings.

The following message will appear at the center

If

you did not change anything, press <Esc> again or

of

the screen to allow you to save

data to CMOS and exit the setup utility:

SA VE to

CMOS

and EXIT (Y /N)?

Exit Without Saving

If

you select this feature, the following message will appear at the center

of

the

screen to allow you to exit the setup utility without saving CMOS modifications:

Quit Without Saving (YIN)?

➔

NOTE : Default values of the various Setup items
chapter may not necessarily

~<>ll

_r~~ree~.

be

the same ones shown

on

this I

on

486-PI0-3

I