Tyan TRINITY 100AT User Manual

Tyan S1590

Trinity 100AT

Motherboard User’s Manual

Revision 1.50

Copyright © Tyan Computer Corporation, 1999. All rights reserved. No part of this
manual may be reproduced or translated without prior written consent from Tyan
Computer Corp.

All registered and unregistered trademarks and company names contained in this
manual are propery of their respective companies including, but not limited to the
following.
AwardBIOS is a trademark of Award Software Inc.
Windows is a trademark of Microsoft Corporation.
IBM, PC, AT, PS/2 are trademarks of IBM Corporation.
INTEL, Pentium, Pentium MMX are trademarks of Intel Corporation.
S1590 Trinity 100AT is a trademark of TYAN Computer Corporation.

Information contained in this publication has been carefully checked for accuracy and
reliability. In no event will Tyan Computer be held liable for any direct or indirect,
incidental or consequential damage, loss of use, loss of data, or other malady resulting
from errors or inaccuracies of information contained in this manual. The information
contained in this document is subject to change without notice.

PRINTED IN USA

T able of Contents

1. Introduction.....................................................................................................4

Overview ..................................................................................................... 4

Icons............................................................................................................5

Hardware Specifications/Features.......................................................... 5

Software Specifications............................................................................ 7

T echnical Support......................................................................................7

Returning Merchandise for Service........................................................8

2. Board Installation.......................................................................................... 9

Unpacking...................................................................................................9

Precautions.................................................................................................9

Installation Steps.......................................................................................10

What is a Jumper?..................................................................................... 1 1

Map of Motherboard Jumpers.................................................................12

Picture of Motherboard Features............................................................1 3

Setting Jumpers..........................................................................................14

Mounting the Motherboard in the Chassis...........................................1 7

Installing Memory......................................................................................1 7

Installing CPU and Cooling Fan..............................................................21

Connecting IDE and Floppy Drives........................................................22

Connecting the Power Supply ................................................................. 2 4

Installing Add-on Cards........................................................................... 26

Connecting PS/2, USB, Serial & Parallel Devices................................. 2 7

Frequently Asked Questions...................................................................2 7

3. BIOS Configuration......................................................................................32

Introduction to Setup................................................................................32

Main Setup Menu......................................................................................35

Standard CMOS Setup..............................................................................37

BIOS Features Setup.................................................................................40

Chipset Features Setup.............................................................................45

Power Management Setup....................................................................... 4 8

PnP/PCI Setup............................................................................................53

Integrated Peripherals...............................................................................56

User Password........................................................................................... 5 8

Flash Writer Utility .....................................................................................59

4. System Resources......................................................................................... 62

POST Messages........................................................................................ 6 2

.

Appendix 1 - Glossary ........................................................................................66

Chapter 1

Introduction

chapter 1

Introduction

Overview

The S1590S-100 (S1590) Trinity 100AT is a quality, high performance mainboard
designed for Socket 7 microprocessors. This mainboard utilizes the VIA MVP3
100MHz AGPset and host bus speeds of 66MHz to 100MHz. For CPU speed
support, please refer to the CPU Compatibility Chart in T yan’ s website
(http://www .tyan.com/support/html/socket_7_compatibility.html). The Trinity
100A T also has 100MHz Front Side Bus support, which allows you to take full
advantage of 100MHz SDRAM memory modules.

The S1590 mainboard, with built-in AGP slot, provides high performance
capabilities that are ideal for a wide range of demanding applications such as
CAD, CAM, CAE, desktop publishing, 3D animation, and video production.

This system board achieves high reliability with numerous features and yet is
small enough to be supported in a Baby AT form factor. Some of the features
included are onboard dual channel PCI PIO, Bus Master IDE and UltraDMA/
33, onboard floppy controller, and onboard high speed I/O.
Flexibility and expandability have been designed into the Trinity 100AT. W ith
I/O and drive controller support built onboard, the one AGP slot, four PCI and
four ISA slots (one shared, eight usable) are free for numerous add-on expan­sion cards.

http://www.tyan.com

4

Remember to take a look at TY AN Computer’ s web site located at
http://www.tyan.com. There you can find information on all of TYAN’s
products along with F AQs, distributors list, drivers, and BIOS setting explana­tions.

Icons

In order to help you navigate this manual and set up your system, we have
added several icons to our format.

This icon alerts you to particularly important details regarding the
setup or maintenance of your system. This icon often appears next

!!

!

!!

important!

chapter, you should always read every word in the text. Failing to do so can
lead to exasperation and expense.

to information that may keep you from damaging your board or
system. While we will often point out the most vital paragraphs in a

INTRO

1.

2.

3.

procedure

entire manual) before you begin to fiddle with your motherboard.

warning

damage to yourself and to your board: always ensure that your system is
turned off and unplugged whenever you are working with it, and that you are
equipped with a static safety device.

Wherever possible, we have included step-by-step instructions for
setting up your system, which are indicated by this icon. However, it
is in your best interest to read an entire section (and perhaps the

While we have alerted you to potential dangers in several places in
the manual with this icon, these warnings should not be regarded as
the whole of your safety regimen. Never forget that computers are
electrical devices, and are capable of delivering a shock. Prevent

Hardware Specifications/Features

Processor Information* •Intel Pentium/Pentium MMX

•AMD K5/K6/K6-2

•Cyrix/IBM 6x86/6x86MX

•IDT C6/C6+

•Maximum rated bus speed 100MHz

S1590 Trinity 100A T

5

Chapter 1

Introduction

Chipset Information •VIA MVP3 AGPset.

V oltage and Power •AT/ATX power supply connectors.
Information •+12V power source for DC fan onboard.

•3.3V or 5.0V DRAM support.

•Utilizes GTL+ bus to reduce power consumption
and EMI.

•Switching power supply onboard.

•W ake-on LAN 3-pin header (requires ATX 2.01
compliant power supply).

Main Memory •Up to 384MB onboard.

•Three 168-pin DIMM sockets.

•T wo 72-pin SIMM sockets.

•Maximum rated memory bus speed 100MHz.

•Supports EDO, SDRAM, Parity, and ECC (ECC only
with Parity memory).

•1024KB level 2 pipeline burst cache

Expansion Slots •One 32-bit AGP slot.

•Four 32-bit PCI Bus Master slots.

•Four 16-bit ISA slots.

•One shared, eight usable slots.

•Maximum rated PCI bus speed 33MHz

Physical Dimensions •Mini A T design.

•11.1 inches x 8.75 inches (reduced form factor).

BIOS Information •A ward Plug and Play flash BIOS.

•Deep Green, Energy Star , Year 2000, ACPI, PC97-98,
DMI 2.0 compliant.

•PC-98 ready .

•Soft power down, multiple boot options.

Disk Drive & System I/O •UltraDMA/33 (UIDE) built-in (up to

33MB/s DTR).

•T wo PCI bus mastering EIDE channels.

•Supports EIDE CD-ROMs.

•PIO Mode 3+4 (up to 17MB/s DTR).

•Bus mastering mode (up to 22MB/s DTR).

•Support for two floppy drives

6

http://www.tyan.com

(supports Mode 3 and up to 2.88MB).

•T wo serial ports (16550 UARTs).

•One ECP/EPP parallel port.

•One IR (InfraRed) I/O interface port header.

•T wo USB rev 1.2 port headers.

•One PS/2 mouse port.

•One AT keyboard connector.

* For the latest CPU compatibility list see www.tyan.com

Software Specifications

OS •Operates with MS-DOS, W indows 3.x, Windows

for W orkGroup 3.x, Windows 95, W indows 98,
Windows NT , OS/2, Novell Netware, Solaris, and
SCO Unix.

T echnical Support

If a problem arises with your system, you should turn to your dealer for help
first. Your system has most likely been configured by them, and they should
have the best idea of what hardware and software your system contains.
Hence, they should be of the most assistance. Further, if you purchased your
system from a dealer near to you, you can actually bring your system in to
them to have it serviced, instead of attempting to do so yourself (which can
have expensive consequences).

INTRO

Help resources:

1. See F AQ and beep codes sections of this manual.

2. See T yan web site for FAQ, bulletins, driver updates, etc.
http://www.tyan.com

3. Contact your dealer or distributor for help BEFORE calling T yan.

4. Email T yan tech support: [email protected]

5. Call T yan tech support: 510-440-8808

S1590 Trinity 100A T

7

Chapter 1

Introduction

Returning Merchandise for Service

During the warranty period, contact your distributor or system vendor FIRST
for any product problems. This warranty only covers normal customer use and
does not cover damages incurred during shipping or failure due to the
alteration, misuse, abuse, or improper maintenance of products.

For Resellers Only:

A receipt or copy of your invoice marked with the date of purchase is required
before any warranty service can be rendered. You can obtain service by calling
the manufacturer for a Return Merchandise Authorization (RMA) number. The
RMA number should be prominently displayed on the outside of the shipping
carton and the package should be mailed prepaid, or hand-carried to the
manufacturer. TYAN will pay to have the board shipped back to you.

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8

chapter 2

Board Installation

Unpacking

The mainboard package should contain the following:
(1 ) S1590 mainboard
(1 ) 40-pin IDE and 34-pin floppy cable pack
(1 ) S1590 User’s Manual

(1) Serial/parallel cable set
(1) PS/2 mouse cable

(1 ) Driver CD

INSTALL

Precautions

What’s the first thing I should do?

The first thing you should do is read this user’s manual. It contains important
information which will make configuration and setup much easier.

Here are some precautions you should follow when installing your mother­board:

S1590 Trinity 100A T

9

Chapter 2

Board Installation

(1) Ground yourself properly before removing your motherboard

!!

!

!!

important!

from the antistatic bag. Unplug the power from your computer
and then touch any metal part on the computer case. (Or wear a
grounded wrist strap.)
(2) Hold the motherboard by its edges and do not touch the bottom of

the board.
(3) A void touching motherboard components, IC chips, connectors,
and leads.

(4) A void touching pins of memory modules and chips.
(5) Place motherboard on a grounded antistatic surface or on the

antistatic bag.

Having reviewed the precautions above, the next step is to take the mother­board out of the cardboard box and static bag, hold it by its edges, and place it
on a grounded antistatic surface, component side up. Inspect the board for
damage.

warning

DO NOT APPL Y POWER T O THE BOARD IF IT HAS BEEN DAMAGED!

Press down on any of the socket ICs if it appears that they are not properly
seated (the board should still be on an antistatic mat). Do not touch the
bottom of the board. Remember, don’t take any electronic device out of its
protective bag until you are ready to actually install it into the computer case.
If you do not ground yourself, you risk zapping the motherboard or adapter
card. Subsequent problems may not arise immediately because electrostatic
discharge damage, unlike physical damage, causes the device to fail over time.

*Power Supply Requirement: If you use an A TX Power Supply , it should be

2.01 compliant. Standby curr ent must be 750mA or higher (SB5V = 0.75A)

Installation Steps

You are now ready to install your mainboard. The mounting hole pattern of the
S1590 matches the Baby AT system board specifications. Your chassis should
have standard AT mainboard form factor mounting holes and either an AT or
ATX power supply.

1.

1. Set Jumpers

2.

2. Mount Motherboard in Chassis

3.

procedure

3. Install Memory

10

http://www.tyan.com

4. Install CPU & Cooling Fan

5. Connect IDE and Floppy Drives

6. Connect Power Supply

7. Install Add-on Cards

8. Connect PS/2, USB, Serial and Parallel Devices

What is a Jumper?

In this manual, the terms “closed” and “on” are used when referring to jumpers
(or jumper pins) that are active; “open” and “off” are used when referring to
jumpers (or jumper pins) that are inactive. See the Figure 2-1 for examples of
“on” and “off” pins and jumpers. The square pin in the diagram is Pin 1.

Jumpers and pins are connected by slipping the blue plastic jumper connector
overtop of two adjacent jumper pins (indicated by 1-2 or 2-3). The metal rod

inside the plastic shell bridges the gap between the two pins, completing the
circuit. See Figure 2-2 for more examples of pin connections.

The tables and maps on the following pages will help you set the jumpers for CPU
speed, Infrared, and external connector pin assignments, among others. The
miniature motherboard maps will help you locate the jumpers on your board. A
full-page map of the motherboard can be found on the next two pages.

2 pin jumpers

off on

3 (or more) pin jumpers

1-2 2-3 open

1
2
3

1
2
3

1
2
3

INST ALL

S1590 Trinity 100A T

Figure 2-1

Figure 2-2

11

Chapter 2

Board Installation

Map of Motherboard Jumpers

1

USB

5

(WOR)

Ring1

Award BIOS

(WOL)

J3

PCI slot 4

PCI slot 3

PCI slot 2

PCI slot 1

PS/2
Mouse
header

Keybrd

AT power connector

Com 2

ISA slot 4

ISA slot 3

3 volt
lithium
battery

1

2

JPW1

9

ISA slot 2

1

3

JVBA T

ISA slot 1

VIA MVP3

chipset

VIA MVP3

chipset

AGP port

Primary IDE connector

(Fan)

DIMM bank 1

LPT1 connector

Secondary IDE connector

J1

DIMM bank 2

Com 1

ATX power connector

Floppy drive connector

JP13

JP12

JP2

JP1

DIMM bank 3

SIMM bank 1

SIMM bank 1

ZIF Socket 7

JP11

JP4

JP5

JP6

J10

(Fan)

JP14

J8

J4 (CPU Fan)

J5

JP8
JP9

JP10

JP7

JP3

1
3

The tiny number “1”s next to jumpers of 3 pins or more indicate the position of
pin 1 for that jumper.

12

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Picture of Motherboard Features

USB

header

4 ISA slots

Award BIOS

4 PCI slots

PS/2 mouse port

AT

Keyboard

port

connector

connector

VIA MVP3

AT power

INST ALL

AGP port

ATX power

CPU

temperature

sensor

S1590 Trinity 100A T

ZIF Socket 7

1MB L2

cache

13

3 DIMM slots

2 SIMM slots

Chapter 2

Board Installation

1. Setting Jumpers

1-A. CPU Bus Speed Settings 1-B. CPU Clock Multiplier

deepSsuB3PJ4PJ5PJ
zHM06
zHM66
zHM57
zHM38
zHM59

zHM001

3-23-23-2

2-13-23-2

2-12-13-2

2-13-22-1

3-22-12-1

2-12-12-1

1-C. CPU Core V oltage Settings

1WPJV0.2

2-1

4-3
6-5
8-7

01-9

V1.2**V2.2V3.2V4.2V7.2V8.2V9.2V2.3

FFONOFFONOFFONOFFONOFFONO

NOFFONONOFFONOFFOFFOFFOFFO

NOFFOFFOFFONONOFFOFFONONO

NOFFOFFOFFOFFOFFONONONONO

NOFFOFFOFFOFFOFFOFFOFFOFFOFFO

reilpitluM8PJ9PJ01PJ
x5.1
x5.2

x3

x5.3

x4

x5.4

x5

FFOFFOFFO

NONOFFO

NOFFOFFO

FFOFFOFFO

FFONONO

NONONO

NOFFONO

V3.3

** Default Setting (2.2V)

The CPU speed is controlled by setting the bus speed and the multiplier with
the jumpers described above that are appropriate for your CPU and memory.
Y ou must have a 100MHz processor AND PC/

!!

!

!!

100 memory to run at a bus speed of 100MHz.

important!

T yan does not recommend operating CPUs,
memory or PCI bus at higher than rated speed.
T yan takes no responsibility for any problems
related to overclocking any bus or componenet
on the system board.

JPW1

1-D. JP11 Split V oltage Setting

11PJ

V=

VUPC

eroC

tluafeD

NO

O/I

FFO

14

JP11

JP8,9,10

JP3,4,5

http://www.tyan.com

JP11 is used to set CPU I/O voltage. Most newer P55C type CPUs such as AMD K6/
K6-2 have 3.3V I/O volt

age and a lower core voltage, so this jumper should be
OFF . For certain older P54C type CPUs the Core voltage is the same as the I/O
voltage so this jumper should be closed (on). Check the specs on your CPU
before you set this jumper.

1-E. SIMM V oltage Settings 1-F. Memory (DIMM)Clock Speed

egatloVMMIS

V5
V3

,1PJ

21PJ

NOFFO

FFONO

,2PJ

31PJ

:saemaS6PJ

kcolCUPC
kcolCPGA

2-1

3-2

Note: AGP Clock Speed is 66MHz.

CPU Clock Speed is set in
section 1-A on previous page.

1-G . J5 External Pin Assignments

sniP2-111-661-3102-8132-2272-42

INST ALL

noitcnuF

tnemngissA

rewoP

ffO/nO

rewoP=1

ffO/nO

DNG=2

deRarfnIDELDDHDELrewoP

V5=6

XRRI=8

DNG=9

XTRI=01

1-H. Power Supply T ype**

,7PJ

41PJ

NO

ylppusrewopTA

FFO

ylppusrewopXTA

**Note: JP7 and JP14 are provided on

some S1590 boards. If your board does
not have JP7 and JP14, please disregard
the above chart - the correct settings
are already built-in to the motherboard.

S1590 Trinity 100A T

15

V5=31

-DEL=51

+DEL=61

J10

(Fan)

JP11

J5

DELpeelS=81

DELrewoP=02

WOL

J4

(CPU Fan)

teseR
hctiwS

DNG=22

teseR=32

JP7,
JP14

rekaepS

V5=42

lanretnI=62

rekaepS

-rekaepS=72

J1
(Fan)

JP1,2
12,13

JP6

Chapter 2

Board Installation

1-J. Other Pin Assignments

12 3

)NALno-ekaW(3J V5ybdnatSDNG)hgiHevitcA,nOrewoP(ekaW

01J&4J,1JsnaF DNGCCVrotinoMnaF

)kcolyek(8J sesacTAredlorofredaehkcolyeK

Hardware CMOS & Password Reset

If you have been locked out of your system because you forgot your pass­word or set the CMOS incorrectly , follow the instructions below .

1. Power off the system

2. Set jumper JVBA T1 to pins 2 and 3

3. Wait for 2 seconds, then return
jumper JVBA T1 to pins 1 and 2.

4. Power on the system again.

tluafeD

SOMCteseR

2-1

3-2

By following this procedure, you will erase your
password and reset the CMOS to the BIOS defaults.

Soft Power Connector

The Soft Power Connector is located on pins
1 and 2 of jumper block J5. Pressing the Soft
Power Button will turn the sytem on and off.
Holding this button for more than four
seconds (when the system is on) will power
down the system. Pressing it again will reboot
the system.

JVBAT1

1TABVJ

Speaker Connector Installation

The Trinity 100AT provides a 4-pin header to
connect the speaker. The speaker is con­nected to pins 24-27 of jumper block J5.

J5

Hardware Reset Switch Connector Installation

The Reset switch on your case’s display panel provides you with the Hardware
Reset function, which is the same as power on/off. The system will do a cold
start after the Reset button is pushed. The Reset switch is a 2-pin connector
and should be installed on pins 22 and 23 of jumper block J5.

http://www.tyan.com

16

BIOS

CMOS RTC

The VIA MVP3 AGPset includes a Real Time
Clock (RTC) circuit, which provides the date
and time for the system. If the external
battery for the RTC is low , it will prevent
your system from POSTing, and you will not
get a display. Normally the life span of an

Battery

external battery is 2 years. If yours is
running low, you will need to replace it with
a new 3V lithium battery (Sony CR2032).

Flash EEPROM

The Trinity 100AT uses flash memory to store BIOS programs. It can be easily
updated if necessary using the flash utility (see page 59). Tyan does not
recommend flashing the BIOS unnecessarily. Check the Tyan web site for the
latest BIOS revision.

2. Mounting the Motherboard in the Chassis

Follow the instructions provided by the case manufacturer for proper installa­tion guidelines. TYAN recommends that you use only one screw to hold down
the motherboard. The rest of the mounting holes should be used for the plastic
standoffs. If your case does not have a hole for a standoff, simply cut off the
bottom of the plastic standoff so that the flat portion rests on the metal. The
adapter cards and the screws holding them down will keep your board flat. The
fastening screw should not short any of the traces on the motherboard. Make

warning

certain that you do not overtighten the screw, as it will damage the mother ­board and possibly break internal traces in the surrounding area. The hole you
should use is located at the top-center of the board where the adapter cards
are fastened to the case.

INST ALL

3. Installing Memory

Since TYAN boards are manufactured with performance in mind, you should
use add-in components that match. Some DIMM modules may seem to be high
quality because of name or feel but that does not guarantee real-world
usability. Some cheaper or OEM memory may have brand-name components,
but they may contain inferior or substandard parts which do not meet the
critical tolerances our products require. Because of this, your memory may not
work correctly in a TYAN board though it may work well in a competitor’s

S1590 Trinity 100A T

17

Chapter 2

Board Installation

board. This is because many of our competitors do not adhere to the strict
tolerances required for high performance. If you buy a TYAN board, you are
getting the best system available. To make installation easy and trouble free,
get high quality parts. Some brands we recommend are Corsair Microsystems,
Kingston Memory, and QesTec Incorporated. These DIMMs have proven to
be very stable on our boards and perform extremely well.

Figure 2-3

T o install your DIMMs, line your module up so that the pins fit into the slot.
There is only one way that your DIMM can fit properly. Make sure that the
short row of pins is lined up with the short gap in the DIMM slot. Figure 2-3
above shows how to sit the DIMM into its slot. To insert the DIMM, push
down vertically on the module with even force, as shown in the photo. Do not
shove one end in first; doing so will bend the DIMM pins.

T o lock the DIMM into place, push the plastic clips on either end of the slot
onto the notches in the ends of the DIMM (see Figure 2-4 on the next page).
T o remove your DIMM, simply pull the clips back, and pull up on the module.

Place the DIMMs in an anti-static bag as soon as you remove them to avoid
static damage.

The Trinity 100AT uses a 64-bit data path from memory to CPU and can
accommodate up to 384MB of SDRAM. The 168-pin DIMMs (Dual In-line
Memory Modules) must be of the 3.3V, unbuffered variety. The position of the

http://www.tyan.com

18

Figure 2-4

notch in the SDRAM key position will tell you whether or not a DIMM is
unbuffered (see the Figure 2-5 below). All installed memory will be automati­cally detected, so there is no need to set any jumpers.

INST ALL

Buffered

Unbuffered

168-pin DIMM

Figure 2-5

19

RFU

Some details of memory installation:

• At least one unbuffered DIMM must be installed for the system to POST.

!!

!

!!

• The mainboard supports 32MB, 64MB, 128MB SDRAM.

important!

• PC-100 DIMM is required if CPU bus speed is at 100MHz

• EDO, SDRAM, Parity, and ECC (using Parity memory) memory is sup-

ported.

• SIMM modules must be installed in pairs, and both must be of the same

size and type.

• The mainboard supports 4MB, 8MB, 16MB, 32MB, and 64MB SIMMs.

• Y ou can install either single- or double-sided SIMMs.

• T wo SIMMs or one unbuf fered DIMM must be installed for the system to

S1590 Trinity 100A T

Chapter 2

Board Installation

POST .

The table below shows some of the possible memory configurations. Not all
possible configurations are listed.

MMID

1knaB

1xBM800
1xBM81xBM80
1xBM81xBM81xBM8

1xBM611xBM81xBM8

01xBM611xBM61

1xBM611xBM611xBM61
1xBM231xBM611xBM61
1xBM231xBM23

01xBM23

1xBM461xBM231xBM23
1xBM461xBM461xBM23
1xBM461xBM461xBM46

1xBM8211xBM461xBM46
1xBM8211xBM8211xBM46
1xBM8211xBM8211xBM821

MMID

2knaB

MMID

3knaB

1xBM80

1xBM232xBM61

MMIS

1knaB

0
0
0
0

2xBM8
0
0

0
0
0
0
0
0

latoT

BM8

BM61
BM42
BM23
BM84
BM84
BM46
BM27
BM69

BM821
BM061

BM291
BM652
BM023
BM483

Note: Y ou can NOT use DIMM Bank 1 and SIMM Bank 1 at the same time!
Bank 1 can not be shared!

Cache Memory

The S1590 has 1024Kbit of onboard pipeline burst SRAM. This SRAM cannot
be upgraded.

http://www.tyan.com

20

4. Installing the CPU and Cooling Fan

Socket 7 processors (see Specifications on page 5) can be used on the Trinity
100A T . Please refer to page 14 for the correct CPU jumper settings for your CPU.
Remember:

• The CPU is a sensitive electronic component and it can easily be damaged

!!

!

!!

important!

by static electricity. Do not touch the CPU pins with your fingers.

• Before the CPU is installed, the mainboard must be placed on a flat
surface. You should be able to insert the CPU with minimal, but firm,
pressure. Do not press down hard on the CPU.

In Figure 2-6, you can see the CPU and the ZIF socket. Notice that the arm of
the ZIF socket is up. When this arm is up, the CPU is unlocked from the socket
and allows you to remove or install a CPU. As the ZIF socket is keyed to the
processor that you are using, you will only be able to install the CPU one way,
thus eliminating the chance for error.
Pin 1 on the CPU is denoted by a
small dot on one of the corners and
Pin 1 on the ZIF socket is denoted
by an angled corner. Never force a
CPU into a socket. Forcing a CPU to
seat will bend the pins on the CPU
and possibly damage the mother­board. Check with your vendor or
manufacturer for proper voltage
selection.

INST ALL

Push down lightly on the CPU, and
lower the arm on the ZIF socket to
secure the CPU. A squeaking noise is
normal as the arm lowers. After the
CPU is securely seated, install the
appropriate cooling device (Figure 2-

7). Tyan strongly recomends a

heatsink/fan combination. Consult
with your case manufacturer for other
cooling options.
Locate the cooling fan connector (e.g.
CPU Fan, J4) on the motherboard. Plug
the CPU’s cooling fan cable into the cool­ing fan connector on the board. There

S1590 Trinity 100A T

Figure 2-6

Figure 2-7

21

Chapter 2

Board Installation

will be a plastic clip assembly similar to that of the ATX power connector that will
force you to connect the fan cable correctly (see Figure 2-8 below).

Figure 2-8

5. Connecting IDE and Floppy Drives

The colored stripe on a ribbon cable should face toward the keyboard connec­tor. In Figure 2-9 on the next page, you can see how the IDE cables should
look when they are connected to your hard drive. Notice how Pin 1 (denoted
by a red stripe) is connected so that it is next to the power connector of the
drive. The primary IDE connector is black; the secondary IDE connector is
white.

In most cases, this is the proper way of connecting your IDE cable to the
harddrive. Figure 2-10 on the next page shows the IDE cable properly con­nected to the motherboard. Contact your hard disk drive manufacturer or
documentation for more information.

Some symptoms of incorrectly installed HDDs are:

• Hard disk drives are not auto-detected: may be a Master / Slave problem
or a bad IDE cable. Contact your vendor.

• Hard Disk Drive Fail message at bootup:may be a bad cable or lack of
power going to the drive.

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22

Figure 2-9

• No video or beeps on bootup: usually means the cable is on backwards.

• Hard drive lights are constantly on: bad IDE cable or defective drives/
motherboard. Try another HDD.

• Hard drives do not power up: check power cables and cabling. May
also be caused by a bad power supply or IDE drive.

Connecting Floppy Drives

Pin 1 on the floppy cable is
usually denoted by a red or
colored stripe down one side
of the cable (see Figure 2-11
on the following page). Most
of the current floppy drives
on the market require that the
colored stripe be positioned
so that it is right next to the
power connector. In most

Pin 1

cases, there will be a key pin
on the cable which will force
you to connect the cable
properly . Drive A: is usually
attached to the end of the
cable with the twist in it.
Drive B: is usually connected
to the middle of the cable.
Refer to your installation

Figure 2-10

INST ALL

S1590 Trinity 100A T

23

Chapter 2

Board Installation

instructions or call your dealer if you are unsure about attaching floppy drives.
Refer to Figure 2-11 for a detailed anatomy of the floppy cable. Remember , you
can only have 2 floppy drives connected at any given time.

Figure 2-11

Some symptoms of incorrectly installed floppies are:

• Floppy drives are not detected: usually caused by faulty cables,

backward cables, or a bad floppy or motherboard. Try another single
floppy drive to verify the problem or try another cable. Also, check to
see if the onboard floppy is enabled in the BIOS.

• Floppy Drive Fail message at bootup: the cable, floppy, or

motherboard may be faulty . T ry another cable or floppy drive to
verify .

• Light on the floppy is on constantly: a dead giveaway that the cable

is on backwards. Reverse the cable at the motherboard end and try
again.

6. Connecting the Power Supply

The Trinity 100AT has both AT and ATX power supply connectors. The
photos below show the ATX power connector before (Figure 2-12) and after
(Figure 2-13) it has been plugged in. The plastic clip on the power connector
should lock over the plastic tab on the onboard connector. You shouldn’t be
able to plug the power connector in any other way but just to be safe, make
sure it looks like Figure 2-13.

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24

Figure 2-12 Figure 2-13

Make absolutely certain that you do not miss any pins, because if you do you
will void your warranty and cause damage to yourself or your motherboard
when you turn the system on. After connecting the power, make sure the

warning

connector is seated firmly into its socket so it will not become loose or fall off
when the computer is jostled or moved. Note: If you use an ATX power supply,
Tyan recommends using one that conforms to industry standard revision 2.01.

If you decide to use an AT power supply instead, connect the power supply to
the board as shown in Figure 2-14 (on the following page). You must set
jumper JP7 according to which type of power supply you have (see p.15).

Note that the black wires are in the center of the two connectors. You should
not be able to plug the two power connectors in any other way but just to be
safe, make sure you have them connected as shown above. Make absolutely
certain that you do not miss any pins because if you do, you will void your
warranty and cause damage to yourself or your motherboard when you turn
the system on. After connecting the power, make sure the connectors are
seated firmly into their sockets so they will not become loose or fall off during
movement of the computer.

INST ALL

S1590 Trinity 100A T

25

Chapter 2

Board Installation

Figure 2-14

7. Installing Add-on Cards

There are a few rules you need to follow when plugging in a card. In order to
assure proper operation and a quick installation, adhere to these guidelines:

• If you are going to install a PCI-Bus interface card on your system,

be aware that any one of the two PCI slots can support a Master
or Slave device.

• NEVER force a card into a slot. If it doesn’t fit, look at the socket

!!

!

!!

important!

on the computer to make sure there are no wires or other
obstructions to the slot.

• NEVER plug an ISA card into a PCI slot or a PCI card in an ISA

slot. You will void your warranty and damage your system board if
you do this.

• When plugging the card in, especially when installing long cards,

try to push the entire card in at one time. Don’t force one end of
the card into the socket first and then the other. This will create a
rocking motion between the card and the slot and it will damage the
pins within the socket.

• Make sure that the cards are seated securely into the slots.

• Before turning on the system, make sure no cards are touching

If you follow these basic guidelines, there shouldn’t be any problems with
installation. However, if you do encounter any problems, have a qualified
professional install your cards for you or contact your card manufacturer.

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26

Remember, always read the manuals and installation notes that come with the
adapter cards. They contain important information which will help you install
the components right, the first time.

8. Connecting PS/2, USB, Serial & Parallel Devices

Connecting Com and Printer Ports

Like the IDE and floppy cables, the colored or red edge of the cable always
denotes pin 1 (Figure 2-15). Similarly, pin 1 on the motherboard is always
pointing towards the keyboard connector or edge of the board. TYAN cables
conform to the IBM standard pinouts and will differ from most other manufac­turers’.

Figure 2-15

Other cables will not work on TYAN boards. The Printer and Com1 ports are on
the same back plate. You want to make sure that you correctly align the
connectors with the pins on the board beacuse they are easy to miss. On most
TYAN cables, there should be a pin missing on the motherboard. This is
normal since it lines up with a key pin on the I/O connectors. This forces you
to align the connector in the correct direction. The Printer port and Com2 are
easily confused. The Printer cable is always attached with Com1 (Figure 2-16
on the following page) where Com2 is supplied seperately on a second back
plate (Figure 2-17 on the following page). Remember: Only TY AN cables will
work on this motherboard. If you are using an existing case with old cables,
your system will not function properly. Use only TY AN-approved connectors.

INSTALL

S1590 Trinity 100A T

27

Chapter 2

Board Installation

Figure 2-16

Figure 2-17

Connecting the PS/2 mouse.

This board has a PS/2 mouse header built in. Simply plug the PS/2 mouse cable
into the header on the motherboard and plug your PS/2 mouse into the PS/2
port; the pins will allow you to plug the mouse in only in the correct way. If
you have any trouble locating the port, turn to the full page motherboard map
on page 12.

Warning: When plugging in your keyboard and mouse, or when plugging
anything into a serial or Com port, make sure that the power is off. Connecting
these devices and ports while the power is on is called “hot plugging,” and
may damage your system.

Y ou are done!

Other than checking the jumper settings and cable connections and putting
the case back on, you are done. Installing a new motherboard may sound
difficult, but by following these directions, you should have had a fairly
uneventful time installing our products. If you did encounter problems, your
dealer will be able to help you, or you can consult one of our many technical
support resources (see page 7).

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28

Frequently Asked Questions

Q: My system sometimes becomes unstable. How should I check the system?
A: The first thing to do is to check and see if you have any device conflict in

address, IRQ, or DMA. If you are using W indows 95, the Device Manager
is a good place to start. Please consult your operating system manual for
details. Second of all, slowing down the memory timing in the BIOS’s
chipset setup section will help the situation, as well. Many memory
modules are not suitable for high performance systems and are probably
the main source of your problem.

Q: What is AGP?
A: AGP (Accelerated Graphics Port) is a new bus architecture for 3D graphics.

The AGP slot eliminates the PCI bandwidth bottleneck by bypassing the
PCI interface and accessing the system memory directly . Currently , the AGP
supports 1X and 2X modes, which yield bandwidths of 264MB/s (at 33MHz
bus speed) and 533MB/s (at 66MHz bus speed), respectively . Compare this
with the mere 132MB/s (at 33MHz bus speed) that you get with the PCI
bus.

Q: Does my operating system support AGP?
A: Currently, only W indows 98 and W indows NT 5.0 will have built-in support

for AGP. Some AGP cards require Windows 95 OSR2.1 or a special driver
from Intel. Please check with your graphics vendor for more details.

INST ALL

Q: Why is the S1590S motherboard NOT working on AMD K6/K6-2 300+MHz

when jumper JP11 is ON?

A: On the motherboard, JP11 is a split-voltage setting. Setting the jumper OFF

(open) allows for separate core and I/O voltages. Newer P55C type CPU's
such as AMD K6/K6-2 require this type of setting. Setting the jumper ON
(closed) gives the CPU only a single voltage control typically for older
P54C type CPU's. Therefore, the motherboard will experience problems if
JP11 is ON.

Q: What is JP11 used for?
A: JP11 is a split-voltage setting. Y ou should leave the jumper CLOSED if you

are using a P54C CPU (non-MMX CPU). Otherwise, you should leave the
jumper OPEN if you are using a P55C CPU or AMD K6 and above.

S1590 Trinity 100A T

29

Chapter 2

Board Installation

Q: My AGP V ideo has an Intel i740 chipset and gives me problems when I plug

it onto this motherboard, why?

A: There is a known incompatibility with the Intel i740 chipset and the VIA

Apollo chipset on the motherboard. In addition, W indows NT 4.0 does not
support Intel's i740 and older chipsets. Nor does it support VIA apollo
chipset. Such a combination will definitely cause a conflict. One solution
to this problem is to download VIA´s AGP driver (AGP driver ver . 2.6 or
later). Go to http://www .via.com.tw/drivers/index.htm to download file at
VIA´s website.

Q: What is "Memory Clock Speed" used for?
A: The Memory Clock Speed deals with the clock speed relationship between

DIMM and CPU. If you are using an AMD CPU that runs at 100MHz-bus
speed and are NOT using PC100 SDRAM, you should set the jumper to
AGP clock 2-3. Otherwise, if you are using PC100 SDRAM, then you
should leave the jumper at CPU clock 1-2. For all other CPU's, the jumper
should be set to CPUclock 1-2.

Q: What are the x1.5 and x2 multiplier jumper settings? They are not mentioned

in the manual

A: For the 1.5x jumper setting - JP8 is OFF , JP9 is OFF , and JP10 is OFF

For the 2x jumper setting - JP8 is OFF , JP9 is ON, and JP10 is OFF .

Q: What is pin#1 for J3, J4, J5, and J6?
A: Pin#1 for the all the jumpers above face towards the PCI slots.

Q: Where is pin#1 for JVBA T1?
A: Pin#1 for JVBA T1 is the one closest to the VIA MVP3 chipset.

Q: Does the motherboard support x2 AGP?
A: Y es, the S1590S Trinity 100AT supports x2 AGP.

Q: What drivers do I install from the CD-ROM provided with the Trinity S1590

Motherboard?

A: Inside the CD-ROM provided with the Trinity motherboard are W in95,

Win98, and WinNT 4.0 drivers for VIA MVP3 chipset and are located in the
VIA folder .

The "agpvxd" folder will install driver support for AGP video. NOTE: this

driver is for W in95 users only, however, some W in98 users may need to
install this driver who are having conflicts in Device Manager. There are no

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30

drivers for W inNT 4.0
The "Bmide" folder will install driver support for VIA IDE Busmaster.
NOTE: this driver is for W in95 and W inNT 4.0 users. W in98 users normally
DO NOT have to install this driver; W in98 has built in VIA IDE Bustmaster
driver when installed originally . Install only if you are having conflicts or
exclamation marks with Hard disk controllers in Device Manager

The "viareg" folder is for "VIA Power Management Controller" and "VIA

PCI to USB Universal Host Controller". NOTE: this driver is for W in95
users. There are no drivers for W inNT 4.0. No need to install for W in98
users.

The "virq13 or virq11" folder will install "VIA PCI IRQ Routing Miniport
Driver". NOTE: Enable "OnChip USB" in BIOS Chipset Features setup
menu and Enable "Assign IRQ for USB" in PNP/PCP Configuration Setup
menu. NOTE II: this driver is for W in95 users only , however, some Win98
users may need to install this driver who are having conflicts in Device
Manager. There are no drivers for W inNT 4.0

Q: When Windows 95 restarts for the first time I get the following message:

"Device IOS failed to initialize. W indows Protection Error. Y ou must reboot
your computer." How do I fix this to get into W indows 95 normally?

A: Follow the following link to download the patch file for this problem:

http://www.amd.com/products/cpg/k623d/win95_update_k6.html

INST ALL

Q: What is JP14 for?
A: JP14 (and JP7) are provided on some S1590 versions. The jumpers control

the power supply feeding the L2 cache. The two jumpers regulate the
power supply voltage in order to provide the circuitry with ~3.3V for normal
operation. Basically, if you have an AT power supply, have both jumpers
JP7 and JP14 CLOSED or ON. If you have an ATX power supply, have them
both OPEN or OFF . Most newer versions of the S1590S motherboard do

not have Jumpers JP14 or JP7 - if so, please disregard this F AQ (the
settings are preset and built-in to the motherboard).

S1590 Trinity 100A T

31

Chapter 3

BIOS Configuration

chapter 3

BIOS Configuration

Introduction to Setup

This manual describes the Award EliteBIOS Setup program. The Setup
program lets you modify basic system configuration settings. The settings are
then stored in a dedicated battery-backed memory , called CMOS RAM, that
retains the information when the power is turned off.

The EliteBIOS in your computer is a customized version of an industry­standard BIOS for IBM PC AT–compatible personal computers. It supports
Intel x86 and compatible processors. The BIOS provides critical low-level
support for the system central processing, memory, and I/O subsystems.

The EliteBIOS has been customized by adding important, but nonstandard,
features such as virus and password protection, power management, and
detailed fine-tuning of the chipset controlling the system. The rest of this
manual is intended to guide you through the process of configuring your
system using Setup.

Starting Setup

The EliteBIOS is immediately activated when you first turn on the computer.
The BIOS reads system configuration information in CMOS RAM and begins

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32

the process of checking out the system and configuring it through the power­on self test (POST).

When these preliminaries are finished, the BIOS seeks an operating system on
one of the data storage devices (hard drive, floppy drive, etc.). The BIOS
launches the operating system and hands control of system operations to it.

During POST , you can start the Setup program in one of two ways:

1. By pressing <Del> immediately after switching the system on, or

2. By pressing the <Del> key or by simultaneously pressing <Ctrl>, <Alt>, and

<Esc> keys when the following message appears briefly at the bottom of the
screen during POST:

TO ENTER SETUP BEFORE BOOT PRESS DEL KEY

If the message disappears before you respond and you still wish to enter
Setup, restart the system to try again by turning it OFF then ON or pressing
the RESET button on the system case. You may also restart by simultaneously
pressing <Ctrl>, <Alt>, and <Delete> keys. If you do not press the keys at the
correct time and the system does not boot, an error message appears and you
are again asked to

PRESS F1 TO CONTINUE, DEL TO ENTER SETUP

Setup Keys

The table on the following page shows how to navigate in Setup using the
keyboard.

Getting Help

Press F1 to pop up a small help window that describes the appropriate keys to
use and the possible selections for the highlighted item. To exit the Help
Window press <Esc> or the F1 key again.

In Case of Problems

BIOS

If, after making and saving system changes with Setup, you discover that your
computer no longer is able to boot, the EliteBIOS supports an override to the
CMOS settings that resets your system to its default configuration.

S1590 Trinity 100A T

33

Chapter 3

BIOS Configuration

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You can invoke this override by immediately pressing <Insert> when you
restart your computer. Y ou can restart by either using the ON/OFF switch, the
RESET button or by pressing <Ctrl>, <Alt> and <Delete> at the same time.

The best advice is to alter only settings that you thoroughly understand. In
particular, do not change settings in the Chipset screen without a good reason.
The Chipset defaults have been carefully chosen by Award Software or your
system manufacturer for the best performance and reliability . Even a seemingly
small change to the Chipset setup may causing the system to become un­stable.

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34

Setup V ariations

Not all systems have the same Setup. While the basic look and function of the
Setup program remains the same for all systems, the appearance of your Setup
screens may differ from the screens shown here. Each system design and
chipset combination require custom configurations. In addition, the final
appearance of the Setup program depends on your system designer. Your
system designer can decide that certain items should not be available for user
configuration and remove them from the Setup program.

Main Setup Menu

When you enter the EliteBIOS CMOS Setup Utility, a Main Menu, similar to
the one shown below, appears on the screen. The Main Menu allows you to
select from several Setup functions and two exit choices. Use the arrow keys to
select among the items and press enter to accept and enter the sub-menu.

A brief description of each highlighted selection appears at the bottom of the
screen. Following is a brief summary of each Setup category .

ROM PCI/ISA BIOS (2A5LET5A)

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP INTEGRATED PERIPHERALS

BIOS FEATURES SETUP SUPERVISOR PASSWORD

CHIPSET FEATURES SETUP USER PASSWORD

POWER MANAGEMENT SETUP IDE HDD AUTO DETECTION

PNP/PCI CONFIGURATION HDD LOW LEVEL FORMAT

LOAD BIOS DEFAULTS SAVE & EXIT SETUP

LOAD SETUP DEFAULTS EXIT WITHOUT SAVING

Esc : Quit ↑ ↓ → ← : Select Item
F10 : Save & Exit Setup (Shift)F2 : Change Color

BIOS

S1590 Trinity 100A T

Time, Date, Hard Disk Type ...

35

Chapter 3

BIOS Configuration

Standard CMOS Setup

Options in the original PC AT -compatible BIOS.

BIOS Features Setup

A ward Software enhanced BIOS options.

Chipset Features Setup

Options specific to your system chipset.

Power Management Setup

Advanced Power Management (APM) options.

PnP/PCI Configuration

Plug and Play standard and PCI Local Bus configuration options.

Integrated Peripherals

I/O subsystems that depend on the integrated peripherals controller in your
system.

Supervisor/User Password

Change, set, or disable a password. In BIOS versions that allow separate user
and supervisor passwords, only the supervisor password permits access to
Setup. The user password generally allows only power-on access.

IDE HDD Auto Detection

Automatically detect and configure IDE hard disk parameters.

HDD Low Level Format

A utility for formatting hard disks..

Load BIOS Defaults

BIOS defaults are factory settings for the most stable, minimal-performance
system operations.

Load Setup Defaults

Setup defaults are factory settings for optimal-performance system operations.

Save & Exit Setup

Save settings in nonvolatile CMOS RAM and exit Setup.

Exit Without Saving

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36

Abandon all changes and exit Setup.

Standard CMOS Setup

In the Standard CMOS menu you can set the system clock and calendar, record
disk drive parameters and the video subsystem type, and select the type of
errors that stop the BIOS POST .

ROM PCI/ISA BIOS (2A5LET59)

STANDARD CMOS SETUP

AWARD SOFTWARE, INC.

Date (mm:dd:yy) : Fri, Jul 10 1998
Time (hh:mm:ss) : 10 : 7 : 7

HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE

Primary Master : Auto 0 0 0 0 0 0 AUTO
Primary Slave : Auto 0 0 0 0 0 0 AUTO
Secondary Master: Auto 0 0 0 0 0 0 AUTO
Secondary Slave : Auto 0 0 0 0 0 0 AUTO

Drive A : 1.44M, 3.5 in.
Drive B : None Base Memory: 640K

Extended Memory:130048K

Other Memory: 384K
Video : EGA/VGA
Halt On : All But Keyboard Total Memory:131072K

ESC : Quit ↑ ↓ → ← : Select Item PU/PD/+/- : Modify
F1 : Help (Shift)F2 : Change Color

Date

The BIOS determines the day of the week from the other date information.
This field is for information only. Press the arrow keys to move to the desired
field (date, month, year). Press the PgUp or PgDn key to increment the setting,
or type the desired value into the field.

Time

The time format is based on the 24-hour military-time clock. For example, 1 p.m.
is 13:00:00. Press the arrow keys to move to the desired field. Press the PgUp
or PgDn key to increment the setting, or type the desired value into the field.

BIOS

S1590 Trinity 100A T

37

Chapter 3

BIOS Configuration

HARD DISKS

The BIOS supports up to four IDE drives. This section does not show
information about other IDE devices, such as a CD-ROM drive, or about other
hard drive types, such as SCSI drives. Note: We recommend that you select
type auto for all drives.

The BIOS can automatically detect the specifications and optimal operating
mode of almost all IDE hard drives. When you select type auto for a hard
drive, the BIOS detects its specifications during POST , every time the system
boots. If you do not want to select drive type auto, other methods of selecting
the drive type are available:

1. Match the specifications of your installed IDE hard drive(s) with the
preprogrammed values for drive types 1 through 45.

2. Select User and enter values into each drive parameter field.

3. Use the IDE HDD Auto Dectection function in Setup.

Here is a brief explanation of drive specifications:
T ype: The BIOS contains a table of pre-defined drive types. Each defined drive
type has a specified number of cylinders, number of heads, write
precompensation factor, landing zone, and number of sectors. Drives whose
specifications do not accommodate any pre-defined type are classified as type
user.
Size: Disk drive capacity (approximate). Note that this size is usually slightly
greater than the size of a formatted disk given by a disk-checking program.

Cyls: Number of cylinders
Head: Number of heads
Precomp: W rite precompensation cylinder
Landz: Landing zone
Sector: Number of sectors
Mode: Auto, Normal, large, or LBA

Auto: The BIOS automatically determines the optimal mode.
Normal: Maximum number of cylinders, heads, and sectors

supported are 1024, 16, and 63.
Large: For drives that do not support LBA and have more than 1024
cylinders.
LBA (Logical Block Addressing): During drive accesses, the IDE
controller transforms the data address described by sector, head, and
cylinder number into a physical block address, significantly
improving data transfer rates. For drives with greater than 1024
cylinders.

38

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Drive A, Drive B

Select the correct specifications for the diskette drive(s) installed in the
computer.

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Video

Select the type of primary video subsystem in your computer. The BIOS
usually detects the correct video type automatically. The BIOS supports a
secondary video subsystem, but you do not select it in Setup.

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Halt On

During the power-on self-test (POST), the computer stops if the BIOS detects a
hardware error. You can tell the BIOS to ignore certain errors during POST and
continue the boot-up process. These are the selections:

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BIOS

S1590 Trinity 100A T

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39

rofspotstub,srorreevirdetteksidrofpotstonseodTSOP

spotstub,rorreksidrodraobyekarofpotstonseodTSOP

Chapter 3

BIOS Configuration

Memory

You cannot change any values in the Memory fields; they are only for your
information. The fields show the total installed random access memory (RAM)
and amounts allocated to base memory , extended memory , and other (high)
memory . RAM is counted in kilobytes (KB: approximately one thousand bytes)
and megabytes (MB: approximately one million bytes).

RAM is the computer’s working memory , where the computer stores programs
and data currently being used, so they are accessible to the CPU. Modern
personal computers may contain up to 64 MB, 128 MB, or more.

Base Memory: T ypically 640 KB. Also called conventional memory .
The DOS operating system and conventional applications use this
area.
Extended Memory: Above the 1-MB boundary . Early IBM personal
computers could not use memory above 1 MB, but current PCs and
their software can use extended memory.
Other Memory: Between 640 KB and 1 MB; often called high
memory. DOS may load terminate-and-stay-resident (TSR) programs,
such as device drivers, in this area, to free as much conventional
memory as possible for applications. Lines in your config.sys file that
start with loadhigh load programs into high memory .

BIOS Features Setup

The screen (shown on the following page) contains industry-standard options
additional to the core PC AT BIOS. This section describes all fields offered by
A ward Software in this screen. The example screen below may vary from the
one in your Setup program. Your system board designer may omit or modify
some fields.

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40

ROM PCI/ISA BIOS (2A5LET59)

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
Quick Power On Self Test : Disabled D0000-D3FFF Shadow : Disabled
Boot Sequence : A, C, SCSI D4000-D7FFF Shadow : Disabled
Swap Floppy Drive : Disabled D8000-DBFFF Shadow : Disabled
Boot Up Floppy Seek : Enabled DC000-DFFFF Shadow : Disabled
Boot Up NumLock Status : On
Boot Up System Speed : High
Gate A20 Option : Normal
Memory Parity/ECC Check : Disabled
Typematic Rate Setting : Disabled
Typematic Rate (Chars/Sec) : 6
Typematic Delay (Msec) : 250
Security Option : Setup
PCI/VGA Palette Snoop : Disabled
OS Select For DRAM > 64MB : Non-OS2

ESC : Quit ↑↓ →← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

BIOS Feature Setup - Default Settings Chart

Setting Option BIO S D efault Setup D efault

Vi rus Warning Di sabled D i sabl ed
CP UInternalCache Enabl ed E nabled
E xternalCache E nabl ed E nabl ed
Quick P ow er On Self Test Disabled Enabled
Boot Sequence A,C , SC SI A,C, SCSI
Sw ap Floppy Drive Disabled Disabled
Boot Up Fl oppy Seek Enabl ed E nabled
Boot Up NumLock Status On On
Boot Up SystemSpeed Hi gh H igh
Gate A20 Option Normal Fast
Memory Parity / ECC Check Disabled Disabled
Typem atic Rate Set ti ng D i sabl ed Di sabl ed
Typem atic Rate (C hars/Sec) 6 6
Typemati c Delay (Msec) 250 250
Security Option Setup Setup
P CI/ VGA Palet te Snoop Disabled Di sabled
OS Select For DR AM> 64M B Non-OS2 Non-OS2
Video BI O S Shadow Enabled Enab l ed
C800 0-C BF FFShadow Di sabl ed Di sabl ed
CC 000-C F F F F Shadow Disabl ed Di sabled
D000 0-D 3FF FShadow Di sabl ed Disabl ed

BIOS

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BIOS Configuration

Settings Chart (Continued)

Setting Option BIOSDefau lt Setup Default

D4 000-D7FF FShadow Disabled Disabled
D8 000-DBF F FShadow D i sabled Disabled
DC000-DFF FFShad ow Disabled Di sabl ed

Virus W arning

When enabled, you receive a warning message if a program (specifically , a
virus) attempts to write to the boot sector or the partition table of the hard disk
drive. You should then run an anti-virus program. Keep in mind that this
feature protects only the boot sector, not the entire hard drive. Note: Many
disk diagnostic programs that access the boot sector table can trigger the
virus warning message. If you plan to run such a program, we recommend that
you first disable the virus warning.

CPU Internal Cache/External Cache

Cache memory is additional memory that is much faster than conventional
DRAM (system memory). CPUs from 486-type on up contain internal cache
memory , and most, but not all, modern PCs have additional (external) cache
memory. When the CPU requests data, the system transfers the requested data
from the main DRAM into cache memory , for even faster access by the CPU.
The External Cache field may not appear if your system does not have external
cache memory .

Quick Power On Self Test

Select Enabled to reduce the amount of time required to run the power-on self­test (POST). A quick POST skips certain steps. We recommend that you
normally disable quick POST . Better to find a problem during POST than lose
data during your work.

Boot Sequence

The original IBM PCs loaded the operating system from drive A (floppy disk),
so IBM PC-compatible systems are designed to search for an operating system
first on drive A, and then on drive C (hard disk). However , modern computers
usually load the operating system from the hard drive, and may even load it
from a CD-ROM drive. The BIOS now offers a large number of boot devices
and boot sequence options.

Swap Floppy Drive

This field is effective only in systems with two floppy drives. Selecting

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Enabled assigns physical drive B to logical drive A, and physical drive A to
logical drive B.

Boot Up Floppy Seek

When Enabled, the BIOS tests (seeks) floppy drives to determine whether they
have 40 or 80 tracks. Only 360-KB floppy drives have 40 tracks; drives with 720
KB, 1.2 MB, and 1.44 MB capacity all have 80 tracks. Because very few modern
PCs have 40-track floppy drives, we recommend that you set this field to
Disabled to save time.

Boot Up NumLock Status

T oggle between On or Off to control the state of the NumLock key when the
system boots. When toggled On, the numeric keypad generates numbers
instead of controlling cursor operations.

Boot Up System Speed

Select High to boot at the default CPU speed; select Low to boot at the speed
of the AT bus. Some add-in peripherals or old software (such as old games)
may require a slow CPU speed. The default setting is High.

Gate A20 Option

Gate A20 refers to the way the system addresses memory above 1 MB (ex­tended memory). When set to Fast, the system chipset controls Gate A20.
When set to Normal, a pin in the keyboard controller controls Gate A20.
Setting Gate A20 to Fast improves system speed, particularly with OS/2 and
Windows.

BIOS

Memory Parity/ECC Check

Select Enabled or Disabled. If Enabled, allows memory checking when the
BIOS detects the presence of ECC or Parity DRAM.

T ypematic Rate Setting

When Disabled, the following two items (T ypematic Rate and T ypematic
Delay) are irrelevant. Keystrokes repeat at a rate determined by the keyboard
controller in your system. When Enabled, you can select a typematic rate and
typematic delay.

T ypematic Rate (Chars/Sec)

When the typematic rate setting is enabled, you can select a typematic rate
(the rate at which character repeats when you hold down a key) of 6, 8, 10,12,
15, 20, 24 or 30 characters per second.

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T ypematic Delay (Msec)

When the typematic rate setting is enabled, you can select a typematic delay
(the delay before key strokes begin to repeat) of 250, 500, 750 or 1000 millisec­onds.

Security Option

If you have set a password, select whether the password is required every time
the System boots, or only when you enter Setup.

PCI/VGA Palette Snoop

Your BIOS Setup many not contain this field. If the field is present, leave at
Disabled.

OS Select for DRAM > 64MB

Select OS2 only if you are running OS/2 operating system with greater than 64
MB of RAM on your system.

Video BIOS Shadow

Software that resides in a read-only memory (ROM) chip on a device is called
firmware. The EliteBIOS permits shadowing of firmware such as the system
BIOS, video BIOS, and similar operating instructions that come with some
expansion peripherals, such as, for example, a SCSI adaptor.

Shadowing copies firmware from ROM into system RAM, where the CPU can
read it through the 16-bit or 32-bit DRAM bus. Firmware not shadowed must
be read by the system through the 8-bit X-bus. Shadowing improves the
performance of the system BIOS and similar ROM firmware for expansion
peripherals, but it also reduces the amount of high memory (640 KB to 1 MB)
available for loading device drivers, etc.

Enable shadowing into each section of memory separately. Many system
designers hardwire shadowing of the system BIOS and eliminate a System
BIOS Shadow option.

Video BIOS shadows into memory area C0000-C7FFF. The remaining areas
shown on the BIOS Features Setup screen may be occupied by other expan­sion card firmware. If an expansion peripheral in your system contains ROM­based firmware, you need to know the address range the ROM occupies to
shadow it into the correct area of RAM.

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Chipset Features Setup

This section describes features of the Intel 440EX chipset.

Advanced Options

The parameters in this screen are for system designers, service personnel, and
technically competent users only. Do not reset these values unless you
understand the consequences of your changes. Note: This chapter describes
all fields offered by Award Software in this screen. Y our system board designer
may omit or modify some fields.

ROM PCI/ISA BIOS (2A5LET59)

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

Bank 0/1 DRAM Timing : FP/EDO 70ns OnChip USB : Disabled
Bank 2/3 DRAM Timing : FP/EDO 70ns
Bank 4/5 DRAM Timing : SDRAM 10ns
SDRAM Cycle Length : 3 CPU Warning Temperature : Disabled
DRAM Read Pipeline : Disabled Current CPU Temperature : 61C/141F

Current CPUFAN1 Speed : 0RPM
Cache Rd+CPU Wt Pipeline : Disabled Current CPUFAN2 Speed : 0RPM
Cache Timing : Fast Current Vin3(V) : 2.45V

Video BIOS Cacheable : Disabled
System BIOS Cacheable : Disabled
Memory Hole At 15Mb Addr : Disabled
AGP Aperture Size : 64M
CPU Fan On/Off On Suspend : ON

BIOS

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ESC : Quit ↑↓ →← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

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Chapter 3

BIOS Configuration

Chipset Features Setup - Default Settings Chart

Setting Option BIOSDefault Se tup Default

Bank 0/1 DRAM T iming FP/EDO 70ns FP/EDO60ns
Bank 2/3 DRAM T iming FP/EDO 70ns FP/EDO60ns
Bank 4/5 DRAM T iming SD RAM10ns SDRAM 8ns
SDRAM Cycle Length 3 3
DRAMRead Pipeline Disabled Enabled
Cache Rd+CPU Wt P ipeline Disabled E nabled
Cache Timing Fast Fast
Video BIOS Cacheabl e Enabled Enabled
System BIOS C acheable Enabled Enabled
Memory Hol eAt 15Mb Addr Disabled Disabled
AGP Aperture Size 64M 64M
CPU Fan On/Off On Suspend On On
OnChip USB Disabled Disabled
CPU Warning Temperature Di sabled 70C / 158F

Bank 0/1, 2/3, 4/5 DRAM Timing

The system board designer must select the proper value for these fields,
according to the specifications of the installed DRAM chips. Turbo mode
reduces CAS access time by 1 clock tick.

SDRAM Cycle Length

This field sets the CAS latency timing.

DRAM Read Pipeline

Select Enabled to pipeline reads from system memory . Pipelining improves
system performance.

Cache Rd+CPU Wt Pipeline

Select Enabled to pipeline reads from cache memory and writes from the CPU.
Pipelining improves system performance.

Cache Timing

For a secondary cache of one bank, select Faster. For a secondary cache of
two banks, select Fastest.

Video BIOS Cacheable

Selecting Enabled allows caching of the video BIOS ROM at C0000h to
C7FFFh, resulting in better video performance. However, if any program writes

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46

to this memory area, a memory access error may result in a system error.

System BIOS Cacheable

If Enabled, results in better system performance by permitting caching of the
system BIOS ROM at F0000h-FFFFFh. Any program which tries to write to this
memory area, however, may cause a system error .

Memory Hole at 15Mb Addr .

You can reserve this area of system memory for ISA adapter ROM. When this
area is reserved, it cannot be cached. The user information of peripherals that
need to use this area of system memory usually discusses their memory
requirements.

AGP Apertur e Size

Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is
a portion of the PCI memory address range dedicated for graphics memory
address space. Host cycles that hit the aperture range are forwarded to the
AGP without any translation. See www .agpforum.org for AGP information.

CPU Fan On/Off On Suspend

This option allows for the CPU Fan to remain On or to be off while in suspend
mode.

SDRAM RAS to CAS Delay

This field lets you insert a timing delay between the CAS and RAS strobe
signals, used when DRAM is written to, read from, or refreshed. Fast gives
faster performance; and Slow gives more stable performance. This field applies
only when synchronous DRAM is installed in the system.

BIOS

OnChip USB

The chipset contains an integrated USB controller. Select Enabled if you have
USB peripherals.

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Chapter 3

BIOS Configuration

Power Management Setup

Note: This chapter describes all fields offered by A ward Software in this
screen. Your system board designer may omit or modify some fields.

ROM PCI/ISA BIOS (2A5LET5A)

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

ACPI Function : Disabled Primary INTR : ON
Power Management : User Define IRQ3(COM2) : Primary
PM Control by APM : No IRQ4(COM1) : Primary
Video Off Option : Suspend->Off IRQ5(LPT2) : Primary
Video Off Method : V/H SYNC+Blank IRQ6(Floppy Disk) : Primary
MODEM Use IRQ : 3 IRQ7(LPT1) : Primary
Soft-Off by PWRBTN : Delay 4 sec. IRQ8(RTC Alarm) : Disabled

HDD Power Down : Disabled IRQ10(Reserved) : Secondary
Doze Mode : Disabled IRQ11(Reserved) : Secondary
Suspend Mode : Disabled IRQ12(PS/2 Mouse) : Primary

VGA : OFF IRQ14(Hard Disk) : Primary
LPT & COM : LPT/COM IRQ15(Reserved) : Disabled
HDD & FDD : ON
DMA/master : OFF

Modem Ring Resume : Disabled
RTC Alarm Resume : Disabled

** PM Timers ** IRQ9(IRQ2 Redir) : Secondary

** PM Events ** IRQ13(Coprocessor) : Disabled

ESC : Quit ↑↓ →← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

Power Management Setup - Default Settings Chart

Setting Option BIOS De fault Setup Default

ACPI Function Disabled Disabled
Pow er Management User Define Us er Define
PM Con tr ol by APM No No
Video Off Option Sus pend -> Off Suspend -> Off
Video Off Method V/ H SYNC+Blank DPMS Support
MODEM U s e IR Q 3 3
Soft-Off by PWRBTN Delay 4 sec. InstantOff
HDD Pow er Dow n Disabled Disabled
Doz e Mode Disabled Disabled
Suspend Mode Disabled Disabled
VGA OFF OFF
LPT & COM LPT / COM LPT/ COM
HDD & F DD ON ON
DMA/ma ste r O F F OFF

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Settings Chart (Continued)

Setting Option BIOSDefault Setup Default

Modem Ring Resum e Disabled Disabled
RTC AlarmResume Disabled Disabled
Primary INTR ON ON
IRQ3 (COM2) Primary Primary
IRQ4 (COM1) Primary Primary
IRQ5 (LPT2) Primary Primary
IRQ6 (Floppy Disk) Primary Primary
IRQ7 (LPT1) Primary Primary
IRQ8 (RTC Alarm) Disabled Di sabled
IRQ9 (IRQ2 Redir) Secondary Secondary
IRQ10 (Reserv ed) Secondary Secondary
IRQ11 (Reser ved) Secondary Secondary
IRQ12 (PS/2 Mouse) Primary Primary
IRQ13 (Coprocessor) Disabled Primary
IRQ14(Hard Disk) Primary Primary
IR Q 15 (Reserved) Disabled Disabled

ACPI Function

Enable or disable Advanced Configuration Power Interface.

Power Management

This option allows you to select the type (or degree) of power saving for Doze,
Standby, and Suspend modes. See the section PM Timers for a brief descrip­tion of each mode. This table describes each power management mode:

BIOS

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PM Control by APM

If Advanced Power Management (APM) is installed on your system, selecting
Yes gives better power savings.

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Video Off Option

Selects the power-saving modes during which the monitor goes blank.

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Video Off Method

Determines the manner in which the monitor is blanked. The Blank Screen
option will let the system BIOS blank the screen when disabling video. V/H
sync+Blank will allow the system BIOS to turn off the V -SYNC and H-SYNC
signals running from the VGA card to the monitor .

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MODEM Use IRQ

If Modem Ring Resume is Enabled, it is possible to wake the system by dialing
in to it. This field determines which IRQ will be monitored for the incoming call.

Soft-Off by PWRBTN

When you select Instant Off or Delay 4 Sec., turning the system off with the
on/off button places the system in a very low power usage state, either
immediately or after 4 seconds, with only enough circuitry receiving power to
detect wake-up event activity.

** PM Timers **

The following modes are Green PC power saving functions that are user­configurable only in User Defined Power Management mode.

HDD Power Down

After the selected period of drive inactivity (1 to 15 minutes), the hard disk
drive powers down while all other devices remain active.

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Doze Mode

After the selected period of system inactivity (1 minute to 1 hour), the CPU
clock runs at slower speed while all other devices still operate at full speed.

Suspend Mode

After the selected period of system inactivity (1 minute to 1 hour), all devices
except the CPU shut off.

** PM Events **

A power management (PM) event awakens the system from, or resets activity
timers for, Suspend mode. You can disable monitoring of common interrupt
requests so they do not generate PM events.

VGA

When On, any video activity is a PM event.

LPT & COM

Select none, or one or more, ports whose activity is a PM event.

HDD & FDD

When On, any hard drive or floppy drive activity is a PM event.

DMA/master

When On, any DMA or bus master activity is a PM event.

BIOS

Modem Ring Resume

When Enabled, an input signal on the serial Ring Indicator (RI) line (in other
words, an incoming call on the modem) awakens the system from Suspend
mode.

RTC Alarm Resume

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

Primary INTR

A system peripheral signals that it wants to gain the attention of the operating
system by sending an interrupt request. When the system is in Suspend mode,
IRQ activity can cause a Primary or Secondary wake-up. When Primary INTR is
On, the IRQs in the above fields can be configured as Primary , Secondary , or
Disabled.

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Chapter 3

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IRQn

The following is a list of IRQs (Interrupt Request Lines) assigned to common
system peripherals.
IRQ3 (COM2) IRQ10 (Reserved)
IRQ4 (COM1) IRQ11 (Reserved)
IRQ5 (LPT2) IRQ12 (PS/2 Mouse)
IRQ6 (Floppy Disk) IRQ13 (Coprocessor)
IRQ7 (LPT1) IRQ14 (Hard Disk)
IRQ8 (RTC Alarm) IRQ15 (Reserved)
IRQ9 (IRQ2 Redir)

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PnP/PCI Configuration

Note: This chapter describes all fields offered by A ward Software in this
screen. Your system board designer may omit or modify some fields.

ROM PCI/ISA BIOS (2A5LET5A)

PNP/PCI CONFIGURATION

AWARD SOFTWARE, INC.

PNP OS Installed : No
Resources Controlled By : Auto
Reset Configuration Data : Disabled

CPU to PCI Write Buffer : Enabled
PCI Dynamic Bursting : Disabled
PCI Master 0 WS Write : Enabled
PCI Delay Transaction : Disabled
PCI Master Read Prefetch : Disabled
PCI#2 Access #1 Retry : Disabled
AGP Master 1 WS Write : Disabled
AGP Master 1 WS Read : Disabled

PCI IRQ Activated By : Level
Assign IRQ for USB : Enabled
Assign IRQ for VGA : Disabled

ESC : Quit ↑↓ →← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

BIOS

PnP / PCI Configuration - Default Settings Chart

Setting O ption B IO S D efault Setup Default

PnP OS Ins talled No No
Re sources Con troll ed By Auto Auto
Re set C onfiguration D ata Disabled Disabled
CP Uto P CIWrite Buffer E nabled Enabl ed
P CIDynamic Bursting D isabled Enabled
P CIM aster 0 WS Write Ena bled E nabled
P CIDel ay Transaction Di sable d E nabled
P CIMaster Read P refetch D isabled Enabled
P CI#2Access #1 Retry Disabled Disabled
AGPM aster 1 WS Write Disabled Enabled
AGPMaster 1 WS Re ad D isabled Disabled
P CIIR QActivated By Level Level
Assign IR Qfor U SB E nabled Enab led
Assign I RQ for VGA Disabled Enabled

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PNP OS Installed

Select Yes if the system operating environment is Plug-and-Play aware (e.g.,
Windows 95).

Resources Controlled By

The Plug and Play EliteBIOS 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 , because the BIOS automatically
assigns them.

Reset Configuration Data

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

IRQ-n Assigned to

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-n Assigned to

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

When this field is Enabled, writes from the CPU to the PCI bus are buffered, to
compensate for the speed differences between the CPU and the PCI bus.
When Disabled, the writes are not buffered and the CPU must wait until the
write is complete before starting another write cycle.

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54

PCI Dynamic Bursting

When Enabled, every write transaction goes to the write buffer . Burstable
transactions then burst on the PCI bus; nonburstable transactions do not.

PCI Master 0 WS Write

When this field is Enabled, writes to the PCI bus are executed with zero wait
states.

PCI Delay T ransaction

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

PCI Master Read Prefetch

A prefetch occurs during a read operations process when the controller
“peeks” at the next instruction and actually begins the next read instruction.
When this field is Enabled, the PCI bus master device is allowed to prefetch
the next read instruction and initiate the next read operation.

PCI#2 Access #1 Retry

Select Enabled to rotate priority of PCI masters.

AGP Master 1 WS Write

Select Enabled to add one clock tick to AGP write operations.

AGP Master 1 WS Read

Select Enabled to add one clock tick to AGP read operations.

PCI IRQ Activated By

Leave the IRQ trigger set at Level unless the PCI device assigned to the
interrupt specifies Edge-triggered interrupts.

Assign IRQ for USB

Assign an IRQ number to the onboard USB port.

Assign IRQ for VGA

Assign an IRQ number to your VGA adapter .

BIOS

Assign IRQ for ACPI

Assign an IRQ number to ACPI.

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Chapter 3

BIOS Configuration

Integrated Peripherals

Note: This chapter describes all fields offered by A ward Software in this
screen. Your system board designer may omit or modify some fields.

ROM PCI/ISA BIOS (2A5LET59)

INTEGRATED PERIPHERALS

AWARD SOFTWARE, INC.

OnChip IDE First Channel : Enabled Onboard FDD Controller : Enabled
OnChip IDE Second Channel : Enabled Onboard Serial Port 1 : 3F8/IRQ4
IDE Prefetch Mode : Disabled Onboard Serial Port 2 : 2F8/IRQ3
IDE HDD Block Mode : Enabled UART2 Mode : Standard
IDE Primary Master PIO : Auto
IDE Primary Slave PIO : Auto
IDE Secondary Master PIO : Auto Onboard Parallel Port : 378/IRQ7
IDE Secondary Slave PIO : Auto Onboard Parallel Mode : SPP
IDE Primary Master UDMA : Disabled
IDE Primary Slave UDMA : Disabled
IDE Secondary Master UDMA : Disabled
IDE Secondary Slave UDMA : Disabled
Init Display First : PCI Slot

ESC : Quit ↑↓ →← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

Integrated Peripherals - Default Settings Chart

Setting O ption B IO S D efault Setup Default

OnC hip I DEFi rst Chann el E nabled E nabled
OnC hip I DESecond C hannel Enabl ed E nabled
IDEPrefetch M ode Disabled Enabled
I DEHD DBlock M ode Ena bled E nabled
I D EP ri m ary M a ster P I O Auto Auto
I D EP ri m ary Sl aveP I O Aut o Auto
IDESecondary Master P IO Auto Auto
IDESecondary Slave P IO Auto Auto
IDE Primar y Master UDMA Disabled Auto
I DEP rim ary Slave UD MA Disable d Auto
IDESecondary Master UD MA Disabled Auto
I DESecondary Sl ave UD M A D isabled Auto
Init Display First PCI Slot AGP
Onboard FDDController E nabled E nabled
Onboard Serial P ort 1 3F8 / IR Q4 3F8 / IRQ 4

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Settings Chart (Continued)

Setting Options BIOS Default Setup Default

Onboard Serial Port 2 2F8 / IRQ3 2F8 / IRQ3
UART2 Mode Standard Standard
Onboard ParallelPor t 378 / IRQ7 378 / IRQ7
Onboard ParallelMode SPP SPP

On-Chip PCI IDE First/Second Channel

This chipset contains a PCI IDE interface with support for two IDE channels.
Select Enabled to activate the primary and/or secondary onboard IDE interface.
Select Disabled to deactivate this interface, if you install a primary and/or
secondary add-in IDE interface.

IDE Prefetch Mode

The onboard IDE drive interface supports IDE prefetching for faster drive
accesses. If you install a primary and/or secondary add-in IDE interface, set
this field to Disabled if the interface does not support prefetching.

IDE HDD Block Mode

Select Enabled only if your hard drives support block mode. Most new drives
support block mode. If Enabled, block mode yields automatic detection of the
optimal number of block read/writes per sector that the drive can support.

IDE Primary/Secondary Master/Slave PIO

The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-

4) for each of up to four IDE devices that the internal PCI IDE interface
supports. Modes 0 through 4 provide successively increased performance. In
Auto mode, the system automatically determines the best mode for each
device.

IDE Primary/Secondary Master/Slave UDMA

UDMA (Ultra DMA) is a DMA data transfer protocol that utilizes AT A
commands and the ATA bus to allow DMA commands to transfer data at a
maximum burst rate of 33 MB/s. When you select Auto in the four IDE UDMA
fields (for each of up to four IDE devices that the internal PCI IDE interface
supports), the system automatically determines the optimal data transfer rate
for each IDE device.

BIOS

Init Display First

Select the type of display adapter used in your system.

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BIOS Configuration

Onboard FDD Controller

Select Enabled if your system has a floppy disk controller (FDC) installed on
the system board and you wish to use it. If you install an add-in FDC or the
system has no floppy drive, select Disabled in this field.

Onboard Serial Port 1/ 2

Select a logical COM port address and corresponding interrupt for the first and
second serial ports. The second serial port offers infrared options in the next
field.

UART2 Mode

Select an operating mode for the second serial port:

dradnatStroplairesC232-SR
RISPHtropderarfnilairestnailpmocADrI
RIKSAtropderarfnideyektfihsedutilpmA

Onboard Parallel Port

Select a logical LPT port address and corresponding interrupt for the physical
parallel port.

Onboard Parallel Mode

Select a mode for the onboard parallel port.

ECP Mode Use DMA

Select a DMA channel for the parallel port for use during ECP mode.

Parallel Port EPP T ype

Select EPP port type 1.7 or 1.9. Your device’s user information should tell you
which port type is required. EPP1.9 is common in newer devices.

User Password

When you select this function, a message appears at the center of the screen:

ENTER P ASSWORD:

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Type the password, up to eight characters, and press Enter. Typing a password
clears any previously entered password from CMOS memory . Now the
message changes:

CONFIRM P ASSWORD:

Again, type the password and press Enter. To abort the process at any time,
press Esc.

In the Security Option item in the BIOS Features Setup screen, select System
or Setup:

metsyS

puteS.puteSretneuoyrevenehwdrowssaparetnE

.puteSretneuoy

revenehwdnastoobmetsysehtemithcaedrowssaparetnE

Note: To clear the password, simply press Enter when asked to enter a
password. Then the password function is disabled.

Flash Writer Utility

You can upgrade the BIOS on your motherboard by using the Flash Memory
Writer (FMW) utility . This utility can be downloaded from TYAN’s BBS and
from the TYAN website. The system BIOS is stored on a flash EEPROM chip
on the mainboard, which can be erased and reprogrammed by the FMW. The
following three files make up the FMW:
AWD F LA S H. E XE The Flash Memory W riter utility for Award to

Award upgrade.
README.TXT A text file of instructions.
S71A WXX.BIN* The new BIOS file.

(*This file name is subject to change and can have either a .bin or .rom extension.)

The FMW records (or programs) a new BIOS onto the flash memory chip. You
cannot upgrade an Award BIOS to an AMI BIOS or vice-versa.

BIOS

Note: You should always clear your CMOS after flashing a BIOS. This will clear
out any stray settings from your old BIOS which may have been carried over
from the flashing process. Most problems encountered after flashing a BIOS

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will be solved by this simple procedure (see Hardware CMOS & Password
Reset, page 33).

T o reprogram the system BIOS, the CPU must be running in real mode. FMW
will not run if the CPU is operating in a protected or virtual mode. This means
that you cannot run it with W indows running or with any memory manager
software. You must disable any memory manager software before you can run
FMW. The easiest way to do this is as follows:

1) Boot your system from a bootable floppy disk with no CONFIG .SYS or
AUTOEXEC.BAT files, and then run FMW from a backup copy of your
support disk. You can make your back-up floppy bootable when you format it,
and use one disk for both purposes.

2) If you are using MS-DOS 6.x, you can use the feature that allows you to
bypass the CONFIG .SYS and AUT OEXEC.BA T files. You can access this
feature by pressing <F5> while the “Starting MS-DOS...” line is on the screen
during boot-up.

If you are uncertain whether or not you have a memory manager running, try
FMW. If it works, then there is no active memory manager on your system. If
you see a warning message about the CPU mode, follow the above directions
to get around the memory manager.

Once you have your CPU in real mode, you can run FMW. You can copy the
contents of the “Flash” directory to your hard drive, or you can run the utility
from a backup of the support floppy disk. Either way, make sure that the new
BIOS file is in the same directory as the FMW utility .
T o start FMW, change to the “Flash” directory if you are not already in it.
T ype “awdflash” at the DOS command line and press the <Enter> key . The
FMW utility screen will appear:

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FLASH MEMORY WRITER V3.0

Copyright(C) 1993, AWARD SOFTWARE, INC.

For VX/HX-2A59CT51 Date:4/13/98

File Name to Program:

Error Message:

T ype in the whole file name, e.g. A61A W10.BIN, and confirm that you want to
program the BIOS. The utility will then “Blank,” “Erase,” and “Program” the
flash memory on the mainboard with the new BIOS file. You should choose
“Yes” to save the original system BIOS to a floppy diskette before you
program the new BIOS. This leaves you with a backup of your original BIOS in
case you need to re-install it. If you cannot successfully program the new
BIOS file for some reason, re-install your original BIOS from the backup file.
Remember, always reset the CMOS after flashing to a new BIOS (see page 33).

BIOS

W arning: If you do not successfully install a complete BIOS file in the flash
memory on the mainboard, your system may not be able to boot. If this
happens, it will require service by your system vendor. Follow the instructions
in this section precisely to avoid such an inconvenience.

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Chapter 4

System Resources

chapter 4

System Resources

POST Messages

During the power-on self test (POST), the BIOS either sounds a beep code or
displays a message when it detects a correctable error. Following is a list of
POST messages for the ISA BIOS kernel. Specific chipset ports and BIOS
extensions may include additional messages. An error message may be
followed by a prompt to press F1 to continue or press DEL to enter Setup.

Beep

Currently the only beep code indicates that a video error has occurred and the
BIOS cannot initialize the video screen to display any additional information.
This beep code consists of a single long beep followed by two short beeps.

BIOS ROM checksum error - System halted

The checksum of the BIOS code in the BIOS chip is incorrect, indicating the
BIOS code may have become corrupt. Contact your system dealer to replace
the BIOS.

CMOS battery failed

CMOS battery is no longer functional. Contact your system dealer for a
replacement battery.

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CMOS checksum error - Defaults loaded

Checksum of CMOS is incorrect, so the system loads the default equipment
configuration. A checksum error may indicate that CMOS has become corrupt.
This error may have been caused by a weak battery. Check the battery and
replace if necessary.

CPU at nnnn

Displays the running speed of the CPU.

Display switch is set incorrectly .

The display switch on the motherboard can be set to either monochrome or
color. This message indicates the switch is set to a different setting than
indicated in Setup. Determine which setting is correct, and then either turn off
the system and change the jumper, or enter Setup and change the VIDEO
selection.

Press ESC to skip memory test

The user may press Esc to skip the full memory test.

Floppy disk(s) fail

Cannot find or initialize the floppy drive controller or the drive. Make sure the
controller is installed correctly . If no floppy drives are installed, be sure the
Diskette Drive selection in Setup is set to NONE or AUTO.

HARD DISK initializing Please wait a moment...

Some hard drives require extra time to initialize.

SYSTEM

HARD DISK INST ALL FAILURE

Cannot find or initialize the hard drive controller or the drive. Make sure the
controller is installed correctly. If no hard drives are installed, be sure the Hard
Drive selection in Setup is set to NONE.

Hard disk(s) diagnosis fail

The system may run specific disk diagnostic routines. This message appears if
one or more hard disks return an error when the diagnostics run.

Keyboard error or no keyboard present

The keyboard cannot initialize. Make sure the keyboard is attached correctly
and no keys were pressed during POST. To purposely configure the system
without a keyboard, set the error halt condition in Setup to HAL T ON ALL,
BUT KEYBOARD. The BIOS then ignores the missing keyboard during POST .

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Keyboard is locked out - Unlock the key

This message usually indicates that one or more keys have been pressed
during the keyboard tests. Be sure no objects are resting on the keyboard.

Memory T est :

This message displays during a full memory test, counting down the memory
areas being tested.

Memory test fail

If POST detects an error during memory testing, additional information appears
giving specifics about the type and location of the memory error.

Override enabled - Defaults loaded

If the system cannot boot using the current CMOS configuration, the BIOS
can override the current configuration is a set of BIOS defaults designed for
the most stable, minimal-performance system operations.

Press TAB to show POST screen

System OEMs may replace the EliteBIOS POST display with their own propri­etary display. Including this message in the OEM display permits the operator
to switch between the OEM display and the default POST display .

Primary master hard disk fail

POST detects an error in the primary master IDE hard drive.

Primary slave hard disk fail

POST detects an error in the secondary master IDE hard drive.

Resuming from disk, Press TAB to show POST screen

The BIOS offers a save-to-disk feature for notebook computers. This message
may appear when the operator re-starts the system after a save-to-disk shut­down. See the Press TAB ... message above for a description of this feature.

Secondary master hard disk fail

POST detects an error in the primary slave IDE hard drive.

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Appendix 1

Glossary

Secondary slave hard disk fail

POST detects an error in the secondary slave IDE hard drive.

Appendix 1

Glossary

ACPI (Advanced Configuration and Power Interface) is a power management
specification that allows the operating system to control the amount of power
distributed to the computer’s devices. Devices not in use can be turned off,
reducing unnecessary power expenditure.

AGP (Accelerated Graphics Port) is a PCI-based interface which was designed
specifically for demands of 3D graphics applications. The 32-bit AGP channel
directly links the graphics controller to the main memory. While the channel
runs at only 66MHz, it supports data transmission during both the rising and
falling ends of the clock cycle, yielding an effective speed of 133MHz.

The AT was the original form factor of IBM’ s PC.

A T API (AT Attachment Packet Interface), also known as IDE or ATA, is a drive
implementation that includes the disk controller on the device itself. It allows
CD-ROMs and tape drives to be configured as master or slave devices, just
like hard drives.

The ATX form factor was designed to replace the A T form factor . It improves
on the AT design by rotating the board ninety degrees, so that the IDE
connectors are closer to the drive bays, and the CPU is closer to the power

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66

supply and cooling fan. The keyboard, mouse, serial, USB, and parallel ports
are built in.
Bandwidth refers to carrying capacity . The greater the bandwidth, the more
data the bus, phone line, or other electrical path, can carry . Greater bandwidth,
then, also results in greater speed.

A BBS (Bulletin Board System) is a computer system with a number of
modems hooked up to it which acts as a center for users to post messages and
access information.

The BIOS (Basic Input/Output System) program resides in the ROM chip, and
provides the basic instructions for controlling your computer’s hardware. Both
the operating system and application software use BIOS routines to ensure
compatibility.

A buffer is a portion of RAM which is used to temporarily store data, usually
from an application, though it is also used when printing, and in most key­board drivers. The CPU can manipulate data in a buffer before copying it, all at
once, to a disk drive. While this improves system performance--reading to or
writing from a disk drive a single time is much faster than doing so repeatedly-­there is the possibility of losing your data should the system crash. Informa­tion stored in a buffer is temporarily stored, not permanently saved.

A bus is a data pathway. The term is used especially to refer to the connection
between the processor and system memory, and between the processor and
PCI or ISA local buses.

Bus mastering allows peripheral devices and IDEs to access the system
memory without going through the CPU (similar to DMA channels).

A cache is a temporary storage area for data that will be needed often by an
application. Using a cache lowers data access times, since the needed informa­tion is stored in the SRAM instead of in the slower DRAM. Note that the
cache is also much smaller than your regular memory: a typical cache size is
512KB, while you may have as much as 1GB of regular memory .

Cache size refers to the physical size of the cache onboard. This should not
be confused with the cacheable area, which is the total amount of memory
which can be scanned by the system in search of data to put into the cache. A
typical setup would be a cache size of 512KB, and a cacheable area of 512MB.
In this case, up to 512MB of the main memory onboard is capable of being

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GLOSSARY

Appendix 1

Glossary

cached. However, only 512KB of this memory will be in the cache at any given
moment. Any main memory above 512MB could never be cached.
Closed and open jumpers Jumpers and jumper pins are active when they are
On or Closed, and inactive when they are Off or Open.

CMOS Complementary Metal-Oxide Semiconductors are chips that hold the
basic start-up information for the BIOS.

The COM port is another name for the serial port, which is so-called because it
transmits the eight bits of a byte of data along one wire, and receives data on
another single wire (that is, the data is transmitted in serial form, one bit after
another). Parallel ports transmit the bits of a byte on eight different wires at the
same time (that is, in parallel form, eight bits at the same time).

DIMM Dual In-line Memory Modules are a faster and more capacious form of
RAM than SIMMs, and do not need to be installed in pairs.

DIMM bank DIMM banks are sometimes called DIMM sockets, because the
physical slot and the logical unit are the same. That is, one DIMM module fits
into one DIMM socket, which is capable of acting as a memory bank.

DMA Direct Memory Access channels are similar to IRQs. DMA channels
allow hardware devices (like sound cards or keyboards) to access the main
memory without involving the CPU. This frees up CPU resources for other
tasks. As with IRQs, it is vital that you do not double up devices on a single
line. Plug and Play devices will take care of this for you.

In Doze mode, only the CPU’s speed is slowed.

DRAM Dynamic RAM is a widely available, very affordable form of RAM
which has the unfortunate tendency to lose data if it is not recharged regularly
(every few milliseconds). This refresh requirement makes DRAM slower three
to ten times slower than non-recharged RAM such as SRAM.

EDO RAM (Extended Data-Out RAM) speeds access to memory locations by
assuming that memory addresses are static: the next time it looks for a bit of
data, it will be at the same spot, or one nearby .

EEPROM Electrically Erasable Programmable ROM, also called Flash BIOS, is
a ROM chip which can, unlike normal ROM, be updated. This allows you to

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keep up with changes in the BIOS programs without having to buy a new chip.
TY AN’ s BIOS updates can be found at http://www .tyan.com/html/drivers.html
ESCD (Extended System Configuration Data) is a format for storing informa-
tion about Plug and Play devices in the system BIOS. This information helps
properly configure the system each time it boots.

Firmware is low level software that controls the system hardware.

Form factor is an industry term for the size, shape, power supply type, and

external connector type of the PCB (personal computer board) or motherboard.
The standard form factors are the AT and ATX, although TYAN also makes
some Baby-AT boards.

A Global timer is an onboard hardware timer, such as the Real Time Clock.

Handshaking is a form of encryption. One system, typically the server, sends
an encryption scheme to another agent, typically a client. Thus, the client’s
data is protected during transmittal to the server.

HDD stands for Hard Disk Drive.

H-SYNC controls the horizontal properties of the monitor .

IC (Integrated Circuit) is the formal name for the computer chip.

IDE Integrated Device (or Drive) Electronics is a simple, self-contained hard

drive interface. It can handle drives up to 8.4GB in size. Almost all IDEs sold
now are in fact Enhanced IDEs (EIDEs).

IDE INT (IDE Interrupt) is a hardware interrupt signal that goes to the IDE.

I/O Input/Output is the connection between your computer and another piece

of hardware (mouse, keyboard, etc.).

IRQ An Interrupt Request is an electronic request that runs from a hardware
device to the CPU. The interrupt controller assigns priorities to incoming
requests and delivers them to the CPU. It is important that there is only one
device hooked up to each IRQ line; doubling up devices on IRQ lines can lock
up your system. Happily, Plug and Play operating systems take care of these
details for you.

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GLOSSARY

Appendix 1

Glossary

ISA stands for Industry Standard Architecture. ISA is a slower 8- or 16-bit BUS
(data pathway).
Latency is the amount of time that one part of a system spends waiting for
another part to catch up. This is most common when the system sends data
out to a peripheral device, and is waiting for the peripheral to send some data
back (peripherals tend to be slower than onboard system components).

NVRAM ROM and EEPROM are both examples of Non-Volatile RAM , memory
that holds its data without power. DRAM, in contrast, is volatile.

OEMs (Original Equipment Manufacturers) like Compaq or IBM package other
companies’ motherboards and hardware inside their case and sell them.

The parallel port transmits the bits of a byte on eight different wires at the
same time (that is, in parallel form, eight bits at the same time).

PCI stands for Peripheral Component Interconnect. PCI is a 32-bit local bus
(data pathway) which is faster than the ISA bus. Local buses are those which
operate within a single system (as opposed to a network bus, which connects
multiple systems).

The PCI PIO (PCI Programmable Input/Output) modes are the data transfer
modes used by IDE drives. These modes use the CPU for data transfer (DMA
channels do not). PCI refers to the type of bus used by these modes to
communicate with the CPU.

PCI-to-PCI bridge allows you to connect multiple PCI devices onto one PCI
slot.

Pipeline burst SRAM is a fast secondary cache. It is used as a secondary
cache because SRAM is slower than SDRAM, but usually larger . Data is
cached first to the faster primary cache, and then, when the primary cache is
full, to the slower secondary cache.

Pipelining improves system performance by allowing the CPU to begin
executing a second instruction before the first is completed. A pipeline can be
likened to an assembly line, with a given part of the pipeline repeatedly
executing a set part of an operation on a series of instructions.

PM timers (Power Management timers) are software timers that count down
the number of seconds or minutes until the system times out and enters sleep,

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suspend, or doze mode.

PnP is an acronym for Plug and Play , a design standard that has become
ascendant in the industry. Plug and Play devices require little set-up to use.
Novice end users can simply plug them into a computer that is running on a
Plug and Play-aware operating system (such as W indows 95), and go to work.
Devices and operating systems that are not Plug and Play require you to
reconfigure your system each time you add or change any part of your
hardware.

The term RAM (Random Access Memory), while technically referring to a type
of memory where any byte can be accessed without touching the adjacent
data, is often used to refer to the system’s main memory. This memory is
available to any program running on the computer.

ROM (Read-Only Memory) is a storage chip which contains the BIOS (Basic
Input/Output System), the basic instructions required to boot the computer
and start up the operating system.

SDRAM (Synchronous Dynamic RAM) is so-called because it can keep two
sets of memory addresses open simultaneously. By transferring data alter­nately from one set of addresses, and then the other, SDRAM cuts down on
the delays associated with non-synchronous RAM, which must close one
address bank before opening the next.

The serial port is so called because it transmits the eight bits of a byte of data
along one wire, and receives data on another single wire (that is, the data is
transmitted in serial form, one bit after another).

GLOSSARY

SIMM Single In-line Memory Modules are the most common form of RAM.
They must be installed in pairs, and do not have the carrying capacity or the
speed of DIMMs.

SIMM bank/socket SIMM sockets are the physical slots into which you stick
SIMM modules. A pair of SIMM sockets form a SIMM bank, and act as a unit.
If only one socket is filled, the bank will not operate.

In Sleep/Suspend mode, all devices except the CPU shut down.

SRAM Static RAM, unlike DRAM, does not need to be refreshed in order to
prevent data loss. Thus, it is faster, and more expensive.

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Appendix 1

Glossary

In S tandby mode, the video and fixed disk drive shut down; all other devices
operate normally.

UltraDMA/33 is a fast version of the old DMA channel. UltraDMA is also
called UltraATA. Without UltraDMA your system cannot take advantage of
the higher data transmission rates of the new UltraATA hard drives.

Universal Serial Bus or USB, is a versatile port. This one port type can
function as a serial, parallel, mouse, keyboard, or joystick port. It is fast
enough to support video transfer, and is capable of supporting up to 127
daisy-chained peripheral devices.

VGA (Video Graphics Array) is the PC video display standard.

V -SYNC controls the vertical properties of the monitor .

ZIF socket Zero Insertion Force sockets make it possible to insert CPUs

without damaging the sensitive pins. The CPU is lightly placed in an open ZIF
socket, and the metal lever pulled down. This shifts the processor over and
down, guiding it into place on the board.

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Notice for the USA

Compliance Information Statement (Declaration of Conformity Procedure) DoC
FCC Part 15: This Device complies with Part 15 of the FCC Rules.
Operation is subject to the following conditions:

1) this device may not cause harmful interference, and

2) this device must accept any interference received including interference that
may cause undesired operation. If this equipment does cause harmful interfer­ence to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try one or more of the
following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Plug the equipment into an outlet on a circuit different from that of

the receiver.

• Consult the dealer or an experienced radio/television technician for

help.

CAUTION: LITHIUM BA TTERIES included with This PC board. Danger of
explosion if battery is incorrectly replaced. Replace ONL Y with the same or
equivalent type recommended by manufacturer. Dispose of used batteries
according to manufacturer instructions.

Notice for Canada

This apparatus complies with the Class B limits for radio interference as
specified in the Canadian Department of Communications Radio Interference
Regulations.

Cet appareil est conforme aux normes de Classe B d’ interference radio tel que
spécifié par le Ministére Canadien des Communications dans les réglements
d’interférence radio.

Notice for Europe (CE Mark)

This product is in conformity with the Council Directive 89/336/EEC, 92/31/EEC
(EMC).

Document # D1318-150

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