DataExpert TX531 User Manual

TX531

CPU Auto-Voltage Detection

Design

User’s Manual

451-053100000

REVISION: D

01-Oct-1997

Printed in Taiwan

DECLARATION OF

CONFORMITY

APPLICATION OF COUNCIL DIRECTIVE(S):

89/336/EEC

STANDARD TO WHICH CONFORMITY IS DECLARED:

EN 50082-1 (IEC 801-2:1984, IEC 801-3:1984, IEC 801-4:1988)

M

ANUFACTURER

A

DDRESS

T

ELEPHONE

T

YPE OF PRODUCT

M

ODEL NO

I, the undersign ed, hereby declare tha t t h e equipment specified a bove conforms to the
above Directive and Standards.

: DataExpert Corporation

:

:

. :

S I G N A T U R E

EN 55022:1994/A1:1995 CLASS B

REGUETLAAN

B

1, 1438 BA O

[phone]

:

Motherboard

TX531

UDE MEER

FAX:

J

ULY

D A T E O F I S S U E

ICE P R E S I D E N T

V

P O S I T I O N T I T L E

HE NETHERLANDS

, T

[phone]

, 4, 1997

2

U

SER’S NOTICE

No part of this product, including the hardware and software may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form by any means without the express written permission o f
DataExpert Corporation. (hereinafter referred to as DataExpert) except
documentation kept by the purchaser for backup purposed.

Specifications are subject to changes without notice, DataExpert provides this
manual “as is” without warranty of any kind, either express or implied, including
but not limited to the implied warranties or conditions of merchantability or
fitness for a particular purpose. In no event shall DataExpert be liable for any
loss or profits, loss of business, loss of use or data, interruption of business, or
for indirect, special , incidental, or consequential damages of any kind, even if
DataExpert has been advised of the possibility of such damages arising form any
defect or error in this manual or product. DataExpert may revise this manual
from time to time without notice.

Products mentioned in this manual are mentioned for identification purposes
only. Product names appearing in this manual may or may not be registered
trademarks or copyrights of their respective companies.

• Intel and Pentium are registered trademarks of Intel Corporation.

• Windows and MS-DOS are registered trademarks of Microsoft Corporation.

The product name and revision number are both printed on the board itself.
Manual revisions are released for each board design represented by the digit
before and after the period of the manual revision number. Manual updates are
represented by the revision letter shown on the back of this manual. For
previous or updated BIOS, drivers, or product release information you may visit
our home page at: http://www.dataexpert.com.tw/.

I

NSTALLATION GUIDE

- It is recommended for installation of AMD K6 MMX 233 and Cyrix M1

CPU

PR200 CPU to be installed with certified CPU Cooler (Big Cooler) from the
approved suppliers. Insufficient Cooling for the CPU may render the system
unstable. Our BIOS will check for the ID code of the CPU and if the CPU ID
code do not match your CPU marking, then return them as it is re-marked from
the original marking. Check that the CPU is firmly installed on the CPU socket
and CPU Cooler secured before powering up the system.

Memory

not mixed SDRAM (3.3V) with EDO 5V type of memory. Please check for re­marked 60ns EDO DRAM by visual inspection of the surface on the
components. Most re-marked memory will shows polished surface. We do not
guarantee reliability for re-marked memory. For BIOS setting for DRAM
configuration, it is advisable to set the default setting for initial checking of the
system. Good Performance needs all installed configuration device installed to
be of excellent quality including memory, hard disk, VGA and others.

Hard Disk

DMA/33 mode hard disk. It works in conjunction with Ultra DMA 33 drivers on
our utility disk attached.

VGA

like ExpertColor VGA, Diamond, ATI, Matrox series. The VGA should be 4
layers PCB type for good display reliability with certified EMI test like CE or
DOC (FCC).

BIOS
Cables

bracket. Check each of the cable has been connected to their respective devices
before power-up.

- Bes t Re co mmend ed for 60 ns E DO D RAM on S IM Ms me mor y. Do

- For best Performance, it is best recommended to install Ultra

- For best compatibility, TX531 has been tested with famous VGA brand

- Setup the system as “Optimal default Setting”.

- The TX531 has prevention of reverse connection with connector

Trademarks and/or registered trademarks are the
properties of their respective owners:

The information in this publication has been carefully for reliability; however, no
responsibility is assumed for inaccuracies. Specifications are subject to change
without notice.

IBM, PC/AT, and PC/XT are trademarks of International Business Machines
Corporation.
Pentium is a trademark of Intel Corporation
MS-DOS and WINDOWS NT are register trademarks of Microsoft Corporation.
Cyrix is a trademark of Cyrix Corporation
AMD is a trademark of Advanced Micro Devices, Inc.

Static Electricity Precautions

Static electricity can easily damage your mainboard. Observing a few basic
precautions can help you safeguard against damage that could result in expensive
repairs. Follow the measures below to protect your equipment from static
discharge:

•

Keep the mainboard and other system computers in their
antistatic packaging until you are ready to install
them.

•

Touch a grounded surface before you remove any system
component from its protective anti-static packaging.
A grounded surface within easy reach is the expansion
slot covers at the rear of the system case. Or any
other unpainted portion of the system chassis.

•

During configuration and installation, touch a
grounded surface frequently to discharge any static
electric charge that may build up in your body.
Another option is to wear a grounding wrist strap.

•

When handing a mainboard or an adapter card, avoid
touching its components. Handle the mainboard and

adapter cards either by the edges or by the mounting
bracket that attaches to the slot opening in the case.

2

Unpacking the Mainboard

The mainboard comes packed in a sturdy cardboard shipping carton. The carton
contains:

• The Mainboard

• This User’s Manual

Note: Do not remove the mainboard from its original packing until you are
ready to install it.

The mainboard is easily damaged by static electricity. Observe the following
precautions while unpacking and installing the mainboard.

1. Touch an unpainted area of system chassis before

handling the mainboard or any component. Doing so
discharge the static charge your body may have
built.

2. Remove the mainboard for appearance checking.

Shipping may have lossened integrated circuits from
their sockets. If any integrated circuit appears
loose, press carefully to seat it firmly in its
socket.

Do not apply power if the mainboard appears damaged. If there is damage to the
board, or items are missing, contact your dealer immediately.

Power Precautions

Before you begin co nfiguration, make sure you ar e working with an unplugged
mainboard. Many components are powered by low-voltage current, but there
still may be a dangerous electric current coming from the leads and power
supply. You should take the following precautions:

•

Turn off the power supply, and unplug the power cord
before you begin.

•

Unplug all canles that connect the mainboard to any

external devices.

TX531 User’s Manaul

Note: Before making connections to the board, make sure that power to the

system is turned off.

2

ABLE OF CONTENTS

T

CHAPTER 1 INTRODUCTION .................... 1

1.1 Overview ...............................1

1.2 System Features ........................2

1.3 System Specification ...................3

1.4 System Performance .....................5

CHAPTER 2 INSTALLATION .................... 6

2.1 Installing DRAM ........................6

2.2 TX531 Board Layout .....................9

2.3 Setting Other Jumpers & Connectors .....10

2.4 Configuring CPU ........................14

2.5 Installing Flash ROM ...................19

2.6 Installing Flash ROM Utility ...........20

CHAPTER 3 SYSTEM BIOS SETUP ............... 21

3.1 Standard CMOS Setup ....................22

3.2 Advanced CMOS Setup ....................24

3.3 Advanced Chipset Seup ..................29

3.4 Power Management Setup .................32

3.5 PCI/PnP Setup ..........................34

3.6 Peripheral Setup .......................35

CHAPTER 1 INTRODUCTION

1.1 Overview

TX531

The
Allocation feature and Cyrix M2-Linear Wrap Mode incorporates the Auto-Voltage
detection and DIP switches for CPU fast and easy installation. With on-board 512K
L2-write-back cache, it provides workstation level computing performance at PC
system level.

TX531

The
and highly integrated design with MESI tag memory built-in, USB, PS/2 KBC, 2
channel dedicated Ultra DMA/33 IDE Master, with the best power management and
ACPI. Also built-in is Super I/O that supports Win95 plug-and-play function.

TX531

The
up to 75MHz and 83.3MHz. Its design provides Auto-banking for memory
expansion with 4x SIMMs or 2x DIMMs sockets up to 256MB of DRAM.

The
mastering slots for a high bandwidth data path for data-movement intensive
functions such as graphics acceleration and all its advanced features for a cost
effective, high performance, and highly expandable platform which delivers the
latest CPU and I/O technologies.

motherboard optimized for MMX CPUs for INTEL, AMD K6-Write

provides highly efficient bus transaction, highly concurrent architecture

also supports all Pentium class CPU family and supports host frequency

TX531

motherboard provides outstanding I/O capabilities with 4x PCI 2.1 bus

1

1.2 System Features

TX531

The
motherboard, including the following:

•

AT Form-Factor ACER PC’97 compliance (Intel 430TX
compatible) chipset Pentium-based Motherboard with 512K
Pipeline Burst SRAM Cache.

•

Supports Intel Pentium Family CPU running at 90MHz~200MHz
(P54C), Intel Pentium with MMX 166/200/233MHz (P55C), AMD
K5 Pentium-level CPU 100/133/166, AMD K6 166/200/233 MMX
CPU and Cyrix 6x86 133/150/166/200 & 6x86MX.

•

Integrated Programmable 2 fast serials (16550) / 1
Parallel (Standard/ECP/EPP) / FDC controller / PS/2 Mouse
Port, 2 x PCI Bus Master (Ultra DMA/33 Mode) IDE
controllers.

•

Provides 3 x 16-bit ISA slot & 4 x Concurrent PCI 2.1
expansion slot.

•

Supports Auto-banking 8MB~256MB Memory utilizing 4 x 72
pin EDO/FPM SIMMs or 2 x 3.3V or 5V 168-pin DIMMs for
SDRAM expansion.

•

Support Flash BIOS for Plug & Play/DMI/Anti-virus/LS120
technology (120MB Capacity) features to provide an ease­of-use add-on cards configuration for users.

•

Supports optional Universal Serial Bus Port and Infrared
IR port (115.2 Kbps/Sec) pin header ready.

•

Provides CPU Auto Voltage detection for fast and easy CPU
installation and upgrade. Low Thermal switching voltage
design for reliability.

has many performance and system features integrated into the

2

Chapter 1: Introduction

1.3 System Specification

Multi-Processor Support: Intel Pentium 90~200 MHz, Intel Pentium with MMX

166~233 MHz
AMD-K5 (90-166 MHz), AMD-K6 (166~233 MHz)

Cyrix 6x86 (120
CPU Clock Speed: 50/55/60/66/75 MHz
DRAM: 8MB to 256MB (Auto Banking)
SRAM: 512K L2 Cache
BIOS type: AMI BIOS with built-in CPU Auto-voltage detection

capabilities
Slot types: Three 16-bit ISA slots + four 32-bit PCI 2.1 slots
Dimension: 22x25 cm (AT form factor)
Utilities Disk: DMI for LAN management, Ultra DMA/33 Drivers,

Acer Chipset ID setup

Additional Features

+

~200+ MHz) & Cyrix 6x86MX

Miscellaneous Button: Reset button, Turbo LED, HDD LED
Board Design: 4-layer Implementation for low noise operation

Utility Drivers

The utility disk contains drivers for the
Windows 3.x, Windows 95, Windows NT3.5x, NT4.0, Novell Netware, and IBM
OS/2.

To install DOS/Windows 3.x drivers, just run the batch file named
“INSTALL.BAT”. To install drivers for other OSes, please refer to the readme file
in certain directory.

TX531

motherboard, including DOS,

3

Windows 95 Drivers Installation

1. Popup ‘Control Panel’ and open ‘Add New Hardware’.

2. Click on “Next”.

3. Click “No” - don’t let Windows to search for your new hardware, then click

“Next”.

4. Select “Hard disk controller” and click “Next”.

5. Click the button “Have Disk” (or press Alt+H).

6. Make sure the install disk is in drive A (or drive B), and then click “OK”.

7. The “Select Device” dialog box will appear.

8. Select the device that you wish to install and click “Next”.

9. After this install procedure is complete, you may need to restart the computer.

Attention:

1. If you have any DOS Real-mode driver on your system. It will be conflict

between ACER Bus Master IDE Driver and a Real-mode ATAPI CD-ROM or
IDE device driver. ALL REFERENCES TO REAL-MODE DRIVERS (IDE or
ATAPI) in the AUTOEXEC.BAT and CONFIG.SYS should be removed.

2. Sometimes, the ACER IDE controller has already been installed with the

standard driver provided by Microsoft. In order to use ACER IDE controller
with the driver we provided, it is necessary to remove the standard driver fro m
“Control Panel/System/Device Manager”.

Ultra DMA/33 Hard Disk Protocol:

Ultra DMA is a new protocol for the ATA/IDE hard disk drive interface that doubles
the current burst data transfer rate to 33 megabytes (MB) per second. The protocol
is a Quantum Corporation patented technology that will be implemented in industry
standard hard drive products. The
DMA/33 capability onto the system to support hard disk with Ultra DMA/33 mode.

TX531

provides a utility disk to install the Ultra

4

Chapter 1: Introduction

1.4 System Performance

The following CPU benchmark programs provide a wide range of performance
indexes, which do not reveal the true speed that the motherboard can provide.

This test is performed on most types of CPUs which are installed on the
motherboard.

SOFTWARE

CPU TYPE

PENTIUM 133
PENTIUM 150
PENTIUM 166
PENTIUM 200
PENTIUM MMX 166
PENTIUM MMX 200
PENTIUM MMX 233
CYRIX 6x86-133
CYRIX 6x86-150
CYRIX 6x86-166
CYRIX 6x86-200
AMD K5-133
AMD K5-166
AMD K6-166
AMD K6-200
AMD K6-233

POWER

LANDMARK

V2.0

771.33 MHz 67.7 MIPS 423.5

878.06 MHz 74.8 MIPS 482.1

964.19 MHz 83.6 MIPS 529.3

1157.04 MHz 98.1 MIPS 635.2

1093.16 MHz 83.6 MIPS 567.2

1311.8 MHz 101.6 MIPS 680.6

1530.42 MHz 113.8 MIPS 784.0

+

1353.98 MHz 74.8 MIPS 761.2

+

1469.25 MHz 81.3 MIPS 826

+

1613.31 MHz 88.9 MIPS 907

+

1089 MHz 101.6 MIPS 1018.1

892.59 MHz 66.1 MIPS 430.5

1041.38 MHz 76.9 MIPS 502.3

1687.6 MHz 123.6 MIPS 991.9

2025.15 MHz 148.7 MIPS 1190.3

2362.67 MHz 177.7 MIPS 1388.7

METER V1.8

MIPS

NORTON

V8.0

CPU SPEED

TX531

5

6

CHAPTER 2 INSTALLATION

2.1 Installing DRAM

The hardware must be set up for a variety of functions before the system is ready to
operate. It is easy to set up the
few jumpers, connectors, and sockets.

TX531

The

!!!!

motherboard can support extended memory of 8MB to 256MB.

The layout of the DRAM memory banks on board is

shown below:

TX531

motherboard. The user only has to adjust a

BANK1

BANK1

AND/OR

SIMM4 SIMM3

SIMM1+SIMM

SIMM3+SIMM

=

6

Chapter 2: Installation

=

DIMM1

DIMM2

AND/OR

7

Chapter 2: Installation

System Memory (SIMM & DIMM)

This motherboard supports four 72-pin, 32-bit SIMMs (Single Inline Memory
Modules) of 4, 8, 16, 32, or 64 MB to form a memory size from 8MB to 256MB.
The SIMMs can be either 60ns or 70ns Fast Page Mode (FPM) (Asymmetric or
Symmetric), or Enhanced Data Out (EDO) (BEDO & Parity are not supported).
SIMMs must be installed in pairs so that each Row (see Map of Motherboard for
Row locations) contains 64-bits of the same size and type of memory chips. One
side (with memory chips) of the SIMM module takes up half a Row on the
motherboard.

Dual Inline Memory Modules (DIMMs) can be used when the SIMM sockets are
not used. Two sockets are available for 3.3 Volt (power level) Unbuffered
Synchronous DRAMs (SDRAM) or EDO DRAM of either 8, 16, 32, 64, or
128MB to form a memory size between 8MB to 256MB. One side (with
memory chips) of the DIMM module takes up one Row on the motherboard.

7

TX531 User’s Manual

!!!!

Table 1 (SIMM)

BANK 0 BANK 1

SIMM1 SIMM2 SIMM3 SIMM4 Total

4MB 4MB None None 8MB
4MB 4MB 4MB 4MB 16MB
8MB 8MB None None 16MB
4MB 4MB 8MB 8MB 24MB
8MB 8MB 4MB 4MB 24MB
8MB 8MB 8MB 8MB 32MB

16MB 16MB None None 32MB

4MB 4MB 16MB 16MB 40MB

16MB 16MB 4MB 4MB 40MB

8MB 8MB 16MB 16MB 48MB
16MB 16MB 8MB 8MB 48MB
16MB 16MB 16MB 16MB 64MB
32MB 32MB None None 64MB

4MB 4MB 32MB 32MB 72MB
32MB 32MB 4MB 4MB 72MB

8MB 8MB 32MB 32MB 80MB
32MB 32MB 8MB 8MB 80MB
16MB 16MB 32MB 32MB 96MB
32MB 32MB 16MB 16MB 96MB
32MB 32MB 32MB 32MB 128MB

Memory

!!!!

Table 2 (DIMM)

DIMM1 (BANK0) DIMM2 (BANK1) Total

8MB --- 8MB

--- 8MB 8MB

8MB 8MB 16MB
16MB 16MB 32MB
32MB 32MB 64MB

8

Memory

Chapter 2: Installation

J

64MB 64MB 128MB

Note: DIMM and SIMM can’t be installed at

Note: DIMM and SIMM can’t be installed at

Note: DIMM and SIMM can’t be installed atNote: DIMM and SIMM can’t be installed at
the same time.

the same time.

the same time.the same time.

2.2 TX531 Board Layout

The general layout of the

SL

SL

SL

SL

J8

J14

1

J13

1

A

J9

J12 J11
J10

SL

U5

SL

A

PCI

CPU SOCKET

TX531

motherboard is shown in the following diagram:

PCI

Acer
M1543

A

JP3

PCI

JP1

5

U3

PR

IDE

PCI

JP8

JP5

U9

32Kx32/

U14

32Kx32/

CN

1

FD

IDE

SIMM4

−

SIMM3

Acer
M1543

BT

SIMM

KB

CN2

U11

SIMM1

32Kx8

U4

DIMM DIMM1

U15

1
2

9

TX531 User’s Manual

2.3

Setting Other Jumpers & Connectors

Connector Description

Connector Pin Out Signal Name

JP1
USB

CONNECTOR

J12

RESET

J14

KEYLOCK

CONNECTOR

J13

SPEAKER

CONNECTOR

J11

HDD_LED

J9

CPU FAN

HEADER

JP2

CLEAR CMOS

1
2
3
4

1
2
1
2
3
4
5
1
2
3
4

1
2

1
2

1
2

"

CLEAR CMOS
NORMAL

( RED WIRE)

+5V DC

DATA OUT
DATA OUT

GROUND
GROUND

RESET IN

+5V DC

GROUND

KEYBOARD INHIBITOR

GROUND

DATA LINE

GROUND
+5V DC

HARD DISK LED

+12V

GROUND

NC

NC

#

J10

SPEED LED

J8

SMI

1
2
1
2

TURBO LED

SUSPEND SWITCH

10

Chapter 2: Installation

DIMMs memory voltage selection

♣♣♣♣

5V EDO type

"

1

JP6

"

#
#

7

♣♣♣♣

Default Setting

3V SDRAM

(Default)

1

JP6

7

#
#

"
"

11

TX531 User’s Manual

1. LED Lead (TB LED)

This indicates whether a message has been received from a fax/modem. The

LED will remain lit when there is no signal and blink when there is data
transfer or waiting in the inbox.

2. Reset Switch Lead (RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting

your computer without having to turn off your power switch. This is a
preferred method of rebooting in order to prolong the life of the system’s
power supply.

3. Keyboard Lock Switch Led & System Power LED (KEYLOCK)

This 5-pin connector connects to the case-mounted keyboard lock switch for

locking the keyboard and also to connect the system power LED. The
system power LED lights when the system is powered on and blinks in sleep
mode.

4. Speaker Connector (SPEAKER)

This 4-pin connector connects to the case-mounted speaker.

5. PS/2 Mouse, USB, Infrared Connector

If you are using a PS/2 mouse, USB, or Infrared devices, you must purchase

an optional external connector set. The external connector set connects to
the 18 pin block and mounts to an open slot on your computer’s chassis.
The system will direct IRQ12 to the PS/2 mouse if one is detected. If not

12

Chapter 2: Installation

detected, expansion cards can use IRQ12. See ”PS/2 Mouse Control” in
BIOS Features Setup and “USB Function” in PnP and PCI Setup of the
BIOS SOFTWARE. See “Second Infrared” connector for details on the
infrared connector.

6. Second Infrared (IrDA) & Fast IR-Compliant Infrared Connector (IR)

This is a second connector that supports the optional wireless transmitting

and receiving infrared module. This module mounts to a small opening on
system cases that support this feature. You must also configure the setting
through “UART2 Use Infrared” in Chipset Featur es Setup to select whether
UART2 is directed for use with COM2 or IrDA. Use the five pins as shown
on the Back View and connect a ribbon cable from the module to the
motherboard according to the pin definitions.

7. SMI Suspend Switch Lead (SMI function)

This allows the user to manually place the system into a suspend mode or

“Green” mode where system activity will be instantly decreased to save
electricity and expand the life of certain components when the system is not
in use. This 2-pin connector (see the figure below) connects to the case­mounted suspend switch. If you do not have a switch fo r t he c onne ct o r, you
may use the “Turbo Switch” since it does not have a function. SMI is
activated when it detects a Short to open moment and therefore leaving it
shorted will not cause any problems. May require one or two pushes
depending on the position of the switch . Wake-up can be controlled by
settings in the BIOS but the keyboard will always allow wake-up (the SMI
lead cannot wake-up the system). If you want to use this connector,
“Suspend Switch” in the Power Management Setup of the BIOS
SOFTWARE section should be on the default setting of Enable.

13

TX531 User’s Manual

2.4 Setting CPU Configuration

Definition of DIP Switch SW 1

SW 1,2,3 - CPU Ratio (1.5x, 2.0x, 2.5x, 3.0x, 3.5x same as 1.5x setting ).
SW 4,5,6 - CPU Frequency (50/55/60/66/75 MHz clock).

For JP8: CPU Mode type:

“OFF” Position: Interleave Burst (Intel/AMD CPUs including MMX).
“ON” Position: Linear Burst (Cyrix CPU including 6x86MX Processor).

•

TX531 CPU Auto-Voltage Detection Feature

TX531

The
Processor. No setting is required to prevent wrong CPU voltage setting. All
Pentium-based processor use two power supplies; one supply is for the CPU core,
and the other is for the I/O interface. Some CPU vendor provide the same voltage
for the core and I/O, it is called “SINGLE VOLTAGE CPU”. If the core and I/O use
different voltages, it is called “DUAL VOLTAGES CPU”. Instead of setting the
CPU as “single” or “dual” voltage by jumper,
automatic detect the CPU is “single” or “dual” voltage when system power-on.

provides Auto-detection voltage for all series of Pentium-based

TX531

Pentium-based series will

14

Processors Configuration

CPU Type Jumper Setting

Chapter 2: Installation

PENTIUM 90MHz/AMD K5-PR90/
AMD K5-PR120

PENTIUM 100MHz/AMD K5­PR100/
AMD K5-PR133

PENTIUM 120MHz

PENTIUM 133MHz

SW1

SW1

SW1

SW1

15

TX531 User’s Manual

PENTIUM 150MHz

PENTIUM 166MHz/PENTIUM
MMX-166/
AMD K5-PR166/AMD K6-PR166

Processors Configuration

CPU Type Jumper Setting

PENTIUM 166MHz/PENTIUM
MMX-166/
AMD K5-PR166/AMD K6-PR166

PENTIUM 200MHz/PENTIUM
MMX-200/
AMD K6-PR200

SW1

SW1

(Continued)

SW1

SW1

PENTIUM MMX-233MHz/
AMD K6-PR233

SW1

16

Chapter 2: Installation

CYRIX 6x86-133+

CYRIX 6x86-150+

CYRIX 6x86-166+

Processors Configuration

CPU Type Jumper Setting

CYRIX 6x86-200+

(Continued)

SW1

SW1

SW1

SW1

JP

•

JP

•

JP

•

CYRIX 6x86MX-PR166

SW1

17

TX531 User’s Manual

JP

•

JP

•

CYRIX 6x6MX-PR200

SW1

JP

•

CYRIX 6x86MX-PR233

Manual Configuration for Switch CPU speed bus & CPU ratio relationships of
the CPUs:

SW1

JP

•

Definition of DIP Switch

DIP: 1,2,3 - CPU Ratio (1.5x,2.0x,2.5x,3.0x,3.5x same as 1.5x setting).
DIP: 4,5,6 - CPU Frequency (50/55/60/66/75 Mhz clock).

DIP1 DIP2 DIP3 Multiplier

ON ON OFF 2.5x

OFF ON OFF 3.0x

ON OFF OFF 2.0x

OFF OFF OFF 1.5/3.5x

18

Chapter 2: Installation

J

DIP4 DIP5 DIP6 CPU Clock

(MHz)
ON ON ON 50
ON ON OFF 55
ON OFF OFF 60

OFF OFF OFF 66
OFF ON ON 75

2.5 Installing FLASH ROM

U3

JP3

PCI

PCI

PCI

PCI

JP1

5

PR

IDE

CN

1

FD

IDE

KB

CN2

−

BT

U4

19

TX531 User’s Manual

♣♣♣♣

5V FLASH ROM 12V FLASH ROM

JP3

" "

1 2

♣♣♣♣

Default Setting

JP3

#

"

1 2

2.6 Installing Flash ROM Utility

Please check the utility software included with your motherboard. This is the Flash
Memory writer utility that updates the BIOS by uploading a new BIOS file to the
programmable Flash ROM chip on the motherboard.

Flash ROM Writer Utility AMIFLASH.COM

AMIFLASH Version 5.30 - Flash EPROM Programming Utility
Copyright (C) 1992-1996 American Megatrends Inc.
Release Date : 05/12/96

Help/Error

20

Chapter 2: Installation

Enter BIOS Filename:

Enter the BIOS Filename from which Flash EPROM will be
programmed.
The Format:- [Drv:\Pathname\Filename.Ext]
The Filename must end with a <ENTER>.

You cannot run this utility from the Windows 95 MS-DOS box. Please run it in real
mode. The method is :

1. Restart your computer.

2. Press F8 to show the multiboot menu as soon as the

“ Starting Windows 95...” message appears on the
screen.

3. Choose 6 (Command prompt only).

4. Run “ AMIFLASH” to write the updated content to

your BIOS if necessary.

Another method is: Create a bootable system floppy diskette by typing “FORMAT A:/S”
from the DOS environment without creating AUTOEXEC.BAT and CONFIG.SYS, then
save the AMIFLASH utility and the BIOS file to the diskette. Note that you should have
a BIOS file ready to update your BIOS chip if you really want to change the original
content of your BIOS.

Press <ESC>

Notice

Notice : If the flashing of the BIOS content fails to

NoticeNotice
boot-up, we recommend you to refer to your nearest
Technical support site for replacement or have a
qualified technician to do the updates for your system.

21

CHAPTER 3 SYSTEM BIOS SETUP

This chapter discusses AMIBIOS Setup program built into the ROM BIOS. The
Setup program allows users to modify the basic system configuration. This special
information is then stored into battery-backed RAM so that it contains the Setup
program when the power is turned off.

The AMIBIOS has been customized by adding important, but non-standard features
such as virus and password protection as will as special support for detailed fine­tuning of the chipset controllin g the entire system.

The Setup utility provided by AMIBIOS is accessed by pressing <Del> at the
appropriate time during system boot. Setup configures data in CMOS RAM.

The following screen shows the types of AMIBIOS Setup:

AMIBIOS HIFLEX SETUP UTILITY

(C)1996 American Megatrends, Inc. All Rights Reserved

Standard CMOS

Setup

Advanced CMOS Setup
Advanced Chipset Setup
Power Management Setup

PCI / Plug and Play Setup

Peripheral Setup

Auto-Detect Hard Disks

Change User Password

Change Supervisor Password

Auto Configuration with Optimal Settings

Auto Configuration with Fail Safe Settings

Change Language Setting

Save Settings and Exit

Exit Without Saving

Standard CMOS setup for changeing time, date, hard disk type,

etc.
ESC: Exit $%: Sel F2/F3: Color
F10: Save & Exit

21

TX531 User’s Manual

22

TX531 User’s Manual

3.1 Standard CMOS Setup

The AMIBIOS Setup options described in this section are displayed by choosing the
Standard Setup icon from the Setup section on the AMIBIOS Setup main menu. All
Standard Setup options are described in this section.

•

Date/Time

Select the Date/Time option to change the date or time. The current date and time
are displayed. Enter new values through the displayed window.

•

Floppy Drive A, B

Choose the Floppy Drive A or B icon to specify the floppy drive type. The settings
are 360 KB 5¼”, 1.2 MB 5¼”, 720 KB 3½”, 1.44 MB 3½”, or 2.88 MB 3½”.

•

IDE Device Auto-detection for Primary/Secondary Hard Disk/CD­ROM Drives/LS-120 device.

•

Configuring IDE Drives

If the hard disk drive to be configured is an IDE drive, select the appropriate drive
icon (Pri Master, Pri Slave, Sec Master, or Sec Slave). Choose the
and select Auto.

Type

parameter

TX531 User’s Manual

AMIBIOS automatically detects the IDE drive parameters and displays them. Click
on the OK button to accept these parameters.

Click on
capacities greater than 528 MB. Note that hard disk with LBA mode formatted on
other system may not bootup and you needs to do a “sys c:” for system bootup.

Click on

Click on
accesses.

•

Select the appropriate drive icon (Pri Master, Pri Slave, Sec Master, or Sec Slave).
Choose the
CD-ROM drive.

•

The LS-120 device will be auto-detected by BIOS. To create LS-120 device boot
able Disc, format the LS-120 disk under Windows 95 or for data storage. Do not
format LS-120 disk under DOS environment.

•

Do not enable this option during operating system installation like OS/2 and
Windows 95. This may render your system unable to install.

LBA/Large Mode

Block Mode

32Bit Mode

and choose On to enable support for IDE drives with

and choose On to support IDE drives that use Block Mode.

and choose On to support IDE drives that permit 32-bit

Configuring a CD-ROM Drive

Type

parameter and select CD ROM. You can boot the computer from a

Configuring a LS-120 device

Anti-Virus Option

24

Chapter 3: System BIOS Setting

3.2 Advanced CMOS Setup

The AMIBIOS Setup options described in this section are displayed by choosing the
Advanced Setup icon from the Setup section on the AMIBIOS Setup main menu.
All Advanced Setup options are described in this section.

AMIBIOS SETUP — – ADVANCED CMOS SETUP

(C)1996 American Megatrends, Inc. All Rights Reserved

1st Boot Device FLOPPY Available Options:
2nd Boot Device IDE-0 Disabled
3rd Boot Device CDROM FLOPTICAL
4th Boot Device Disabled
S.M.A.R.T. for Hard Disks Disabled
Quick Boot Disabled
BootUp Num-Lock Off
Floppy Driver Swap Disabled
Floppy Driver Seek Disabled
PS/2 Mouse Support Disabled
System Keyboard Absent
Primary Display Absent
Password Check Setup
Parity Check Disabled
Boot To OS/2 No
Wait For “ F1” If Error Disabled
Hit “ DEL” Message Display Disabled ESC: Exit $% : Sel
External Cache Disabled PgUp/PgDn : Modify
System BIOS Cacheable Enabled F2/F3 : Color

•

xxx Boot Device

Piority of Device pre-defined in-sequence for Booting.

•

S.M.A.R.T. Feature

S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a technology
developed to manage the reliability of the hard disks by predicting some (but NOT
ALL) of the future device failures. This feature helps BIOS warn the user of th e
possible device failure thereby giving user a chance to back up the device and
replace the device before actual failure happens. S.M.A.R.T. capable devices should
predict an impending failure and return that information through the Return
S.M.A.R.T. Status command. Note that S.M.A.R.T. can not predict all f uture d evice
failures and it should be used as an warning tool, not as a tool to predict the device
reliability.

25

TX531 User’s Manual

•

Quick Boot

Set this option to Enabled to permit AMIBIOS to boot within 5 seconds. This
option replaces the old
Safe default settings are Disabled.

Setting Description

DisabledAMIBIOS tests all system memory. AMIBIOS wait

up to 40 seconds for a READY signal from the IDE
drive. AMIBIOS waits up to .5 seconds after
sending a RESET signal to the IDE drive to
permit the IDE drive to send a READY signal.
AMIBIOS checks if the <Del> key was pressed.
AMIBIOS Setup is executed if <Del> was pressed.

Enabled AMIBIOS does not test any system memory above 1

MB. AMIBIOS does not wait for a READY signal
from the IDE drive. If a READY signal is not
received immediately, AMIBIOS does not configure
the drive. AMIBIOS does not wait .5 seconds
after sending a RESET signal to the IDE drive.
AMIBIOS does not check if the <Del> key was
pressed.

boot if this setting is selected.

Above 1 MB Memory Test

You cannot run AMIBIOS Setup at system

option. The Optimal and Fail-

•

Boot Up Sequence

This option sets the sequence of boot drives (floppy drive A:, hard disk drive C:, or a
CD-ROM drive) that AMIBIOS attempts to boot from after AMIBIOS POST
completes. The settings are C:,A:, CDROM, A:,C:, CDROM, or CDROM, C:,A:.
The Optimal and Fail-Safe default settings are C:,A:,CDROM.

•

Boot Up CPU Speed

This option sets the CPU speed when the computer boots. The settings are Low or
High. The Optimal and Fail-Safe default settings are High.

•

Boot Up Num Lock

When this option is set to On, AMIBIOS turns off the Num Lock key when the
system is powered on so the end user can use the arrow keys on both the numeric

26

Chapter 3: System BIOS Setting

keypad and the keyboard. The settings are On or Off. The Optimal default and Fail­Safe default settings are On.

•

Floppy Drive Swap

Set this option to Enabled to specify that floppy drives A: and B: are swapped. The
settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are

Disabled.

•

Floppy Drive Seek

When this option is set to Enabled, AMIBIOS performs a Seek command on floppy
drive A: before booting the system. The settings are Enabled or Disabled. The
Optimal default setting is Disabled. The Fail-Safe default setting is Enabled.

•

PS/2 Mouse Support

When this option is set to Enabled, AMIBIOS supports a PS/2-type mouse. The
settings are Enabled or Disabled. The Optimal and Fail-Safe default settings are
Disabled.

•

System Keyboard

This option configures the keyboard. The settings are Present or Absent. If you
select Absent, AMIBIOS does not report keyboard errors. The Optimal and Fail-Safe
default settings are Present.

•

Primary Display

This option configures the primary display subsystem in the computer. The settings
are Absent, Mono (monochrome), 40CGA, 80CGA, or VGA/EGA. The Optimal and
Fail-Safe default settings are VGA/EGA.

•

Password Check

This option specifies the type of AMIBIOS password protection that is implemented.
The Optimal and Fail-Safe default settings are Setup. The settings are:

Setting Description

Setup The password prompt appears only when an end user

attempts to run AMIBIOS Setup.

Always A password prompt appears every time the

27

TX531 User’s Manual

computer is powered on or rebooted.

The AMIBIOS password does not have to be enabled. The end user sets the
password by choosing the Password icon on the AMIBIOS Setup screen.

•

Boot to OS/2

Set this option to Yes to permit AMIBIOS to run properly if OS/2 or any other
operating system that does not support Plug and Play is to be run on this computer.
If running OS/2 in a computer with 64 MB or more of system memory, set this
option to Yes. The settings are Yes or No. The Optimal and Fail-Safe default
settings are No.

Wait for "F1" If Error

AMIBIOS POST runs system diagnostic tests that can generate a message followed
by:

Press <F1> to continue

If this option is set to Enabled, AMIBIOS waits for the end user to press <F1>
before continuing. If this option is set to Disabled, AMIBIOS continues the boot
process without waiting for <F1> to be pressed. The settings are Enabled or
Disabled. The Optimal default and Fail-Safe default settings are Enabled.

Hit "DEL" Message Display

Disabling this option prevents

Hit <DEL> if you want to run Setup

from appearing when the system boots. The settings are Enabled or Disabled. The
Optimal and Fail-Safe default settings are Enabled.

•

External Cache

This option selects the type of caching algorithm used by AMIBIOS and the CPU to
access L2 secondary (external) cache memory. The settings are:

Setting Description

WriteBackA write-back algorithm is used.

WriteThruA write-through algorithm is used.

28

Chapter 3: System BIOS Setting

Disabled AMIBIOS does not specify the type of caching

algorithm.

The Optimal default setting is WriteBack. The Fail-Safe default setting is
Disabled.

•

System BIOS Cacheable

AMIBIOS always copies the system BIOS from ROM to RAM for faster execution.
Set this option to Enabled to permit the contents of the F0000h RAM memory
segment to be written to and read from cache memory. The settings are Enabled or

Disabled. The Optimal default setting is Enabled. The Fail-Safe default setting is
Disabled.

C000,16K Shadow
C400,16K Shadow

These options specify how the contents of the video ROM at C0000h are handled.
The settings are:

Setting Description

Disabled The Video ROM is not copied to RAM.

Cached The contents of the video ROM area from

C0000h - C7FFFh are not only copied from ROM
to RAM, the contents of the C0000h - C7FFFh
RAM area can be written to or read from
cache memory.

Enabled The contents of the video ROM area from

C0000h - C7FFFh are copied (shadowed) from
ROM to RAM for faster execution.

The Optimal and Fail-Safe default settings are Cached.

C800,16K Shadow
CC00,16K Shadow
D000,16K Shadow
D400,16K Shadow
D800,16K Shadow
DC00,16K Shadow

29

TX531 User’s Manual

These options specify how the contents of the adapter ROM named in the option title
are handled. The ROM area that is not used by ISA adapter cards will be allocated to
PCI adapter cards. The settings are:

Settin

Description

g

DisabledThe specified ROM is not copied to RAM.

Cached The contents of the ROM area are not only copied

from ROM to RAM for faster execution, the contents
of the RAM area can be written to or read from
cache memory.

EnabledThe contents of the ROM area are copied from ROM

to RAM for faster execution.

The Optimal and Fail-Safe default settings are Cached.

3.3 Advanced Chipset Setup

Choose the Chipset Setup icon from the Setup section on the AMIBIOS Setup main
menu. All Chipset Setup options are then displayed and are described in this
chapter.

AMIBIOS SETUP — – ADVANCED CHIPSET SETUP

(C)1996 American Megatrends, Inc. All Rights Reserved

USB Function Disabled Available Options:
USB Keyboard/Mouse Legacy
Support
DRAM Write Timing 4-3-3-3 Enabled
Page Mode DRAM Read Timing X-4-4-4
EDO DRAM Read Timing X-3-3-3
DRAM Data Integrity Mode Parity
AT Bus Clock Auto
Cyrix Burst Mode Linear

Enabled Disabled

30

Chapter 3: System BIOS Setting

Memory Hole Disabled

ESC: Exit $%: Sel
PgUp/PgDn: Modify
F2/F3: Color

•

USB Function

Set this option to Enabled to enable the system BIOS USB (Universal Serial Bus)
functions. The settings are Enabled or Disabled. The Optimal and Fail-Safe default
settings are Disabled.

•

USB Keyboard/Mouse Legacy Support

Set this option to Enabled to provide support for older non-USB keyboard and
mouses. The settings are Enabled or Disabled. The Optimal and Fail-Safe default
settings are Disabled.

•

DRAM Write Timing

This option specifies the access timings for DRAM system memory write operations.
The Optimal and Fail-Safe default settings are x4-4-4 or x-3-3-3. Default setting as
x-4-4-4.

•

Page Mode DRAM Read Timing

This option specifies the access timings for Page Mode DRAM system memory read
operations. The settings are x-4-4-4 or x-3-3-3. The Optimal default setting as x-4-4-

4. It is recommend that for CPU Frequency 233 MHz or CPU clock above 66MHz
speed, it should be set as x-4-4-4.

•

EDO DRAM Read Timing

This option specifies the access timing for Page Mode DRAM system memory read
operations. The settings are x-4-4-4-4, or x-3-3-3. The Optimal default settings are

x-3-3-3.

31

TX531 User’s Manual

•

DRAM Data Integrity Mode

This option sets the Error Check and Correction feature (ECC

RAM)

to provides single-error correction, double-error correction and detection of
all errors confined to a single nibble fo r the DRAM data integrity. The settings are
Parity/ECC. The Optimal and Fail-Safe default settings are Parity. If you do not
install SIMMs with Parity Check RAM, then don’t care or “Parity”. Do not set it as
“ECC” option if your SIMMs do not have parity check RAM as wrong setting may
cause system unstable.

•

AT Bus Clock

This option set the AT Bus Clock for system I.O. Default setting set as “Auto”.

•

Cyrix Burst Mode

This option enable the Cyrix CPU to take advantage of the Burst mode incorpo rated
in the CPU to increase performance.

•

Memory Hole

This option allows the end user to sp ecify the location of a memory hole for ISA
card with firm ware ROM. The settings are Disabled, 512-640K, 14-16 MB, or 15-
16M (from 15MB to 16 MB). The Optimal and Fail-Safe default settings re
Disabled.

Memory Specification Notice

The problem with EDO RAM when looking in the future is that it hardly works with
any bus speed higher than 66 MHz, which is already reached. As CPUs demand
higher bus speeds and the Cyrix 6x86 already needing 75 MHz, it is not
recommended to use EDO Memory on the
above 66 MHz or install SDRAM DIMMs memory which supports up to 83.3 MHz
bandwidth depending on the type of the SDRAM DIMMs installed. Current Intel
and AMD CPUs (100~233 MHz) require 66 MHz system clock.

TX531

for system clock frequency of

) (SIMMs with Parity

32

Chapter 3: System BIOS Setting

3.4 Power Management Setup

The AMIBIOS Setup options described in this section are selected by choosing the
Power Mgmt Setup icon from the Setup section on the AMIBIOS Setup main menu.

AMIBIOS SETUP — – POWER MANAGEMENT SETUP

(C)1996 American Megatrends, Inc. All Rights Reserved

Power Management/APM Disabled Available Options:
Green PC Monitor Power
State
Video Power Down Mode Disabled Enabled
Hard Disk Power Down Mode Disabled
Standby Time out Disabled
Suspend Time Out Disabled

Stand By Disabled

33

TX531 User’s Manual

Monitor Parallel Port Yes
Monitor Serial Port Yes
Monitor Floppy Yes
Monitor VGA No
Monitor Pri-HDD No
Monitor Sec-HDD No

Power Button Function Green

ESC : Exit $% : Sel
PgUp/PgDn: Modify
F2/F3: Color

•

Power Management/APM

Set this option to Enabled to enable the Intel 430TX power management features
and APM (Advanced Power Management). The settin gs are Enabled or Disabled.
The Optimal and Fail-Safe default settings are Enabled.

•

Green PC Monitor Power State

This option specifies the power state that the green PC-compliant video monitor
enters when AMIBIOS places it in a power savings state after the specified period o f
display inactivity has expired. The settings are Off, Standby, Suspend, or Disabled.
The Optimal and Fail-Safe default settings are Standby.

•

Video Power Down Mode

This option specifies the power conserving state that the VESA VGA video
subsystem enters after the specified period of display inactivity has expired. The
settings are Disabled, Standby, or Suspend. The Optimal and Fail-Safe default
settings are Disabled.

•

Hard Disk Power Down Mode

This option specifies the power conserving state that the hard disk drive enters after
the specified period of hard drive inactivity has expired. The settings are Disabled,
Standby, or Suspend. The Optimal and Fail-Safe default settings are Disabled.

•

Standby Time out

This option specifies the length of a period o f system inactivity while in Full power
on state. When this length of time expires, the computer enters Standby power state.
The settings are Disabled, 1 min, 2 min, 3 min, 4 min, 5 min, 6 min, 7 min, 8 min, 9

34

Chapter 3: System BIOS Setting

min, 10 min, 11 min, 12 min, 13 min, 14 min, or 15 min. The Optimal and Fail-Safe
default settings are Disabled.

•

Suspend Time out

This option specifies the length of a period of system inactivity while in Standby
state. When this length of time expires, the computer enters Su spend power state.
The settings are Disabled, 1 min, 2 min, 3 min, 4 min, 5 min, 6 min, 7 min, 8 min, 9
min, 10 min, 11 min, 12 min, 13 min, 14 min, or 15 min. The Optimal and Fail-Safe
default settings are Disabled.

•

Power Button Function (SMI switch)

This option specifies the length of a period of system inactivity while in Standby.

3.5 PCI/PnP Setup

Choose the PCI/PnP Setup icon from the AMIBIOS Setup screen to display the PCI
and Plug and Play Setup options, described below.

OnChip USB Disabled Available Options:
Plug and Play Aware O/S No Disabled
PCI IDE BusMaster Disabled Enabled
Assign IRQ To PCI VGA Cars No
IRQ3 PCI/PnP
IRQ4 PCI/PnP

(C)1996 American Megatrends, Inc. All Rights Reserved

AMIBIOS SETUP — – PCI / PLUG PLAY SETUP

35

TX531 User’s Manual

IRQ5 PCI/PnP
IRQ7 PCI/PnP
IRQ9 PCI/PnP
IRQ10 PCI/PnP
IRQ11 PCI/PnP
IRQ12 PCI/PnP
IRQ14 PCI/PnP
IRQ15 PCI/PnP
Reserved Memory Size Disabled
Reserved Memory Address C8000

ESC : Exit $% : Sel
PgUp/PgDn: Modify
F2/F3 : Color

•

OnChip USB:

Set this option to Enabled if any USB device is installed. Default setting as
Disabled.

•

Plug and Play-Aware O/S

Set this option to Yes if the operating system in this computer is aware of and
follows the Plug and Play specification. Currently, only Windows 95 is PnP-aware.
The settings are Yes or No. The Optimal and Fail-Safe default settings No.

•

Reserved Memory Size

This option specifies the size of the memory area reserved for legacy ISA adapter
cards. The settings are Disabled, 16K, 32K, or 64K. The Optimal and Fail-Safe
default settings are Disabled.

•

Reserved Memory Address

This option specifies the beginning address (in hex) of the reserved memory area.
The specified ROM memory area is reserved for use by legacy ISA adapter cards.

The settings are C0000, C4000, C8000, CC000, D0000, D4000, D8000, or DC000.
The Optimal and Fail-Safe default settings are C8000.

3.6 Peripheral Setup

Choose the Peripheral Setup icon from the AMIBIOS Setup screen to display the
Peripheral Setup options, described below.

AMIBIOS SETUP — – PERIPHERAL SETUP

(C)1996 American Megatrends, Inc. All Rights Reserved

OnBoard FDC Auto Available Options:
OnBoard Serial Port1 3F8h Auto
Serial Port1 Mode Normal Disabled

36

Chapter 3: System BIOS Setting

Serial Port1 IRQ 4 Enabled

IR Transmitter Polarity N/A
IR Receiver Polarity N/A

IR Half-Duplex Time-Out N/A
OnBoard Serial Port2 2F8h
Serial Port2 Mode Normal
Serial Port2 IRQ 3

IR Transmitter Polarity N/A

IR Receiver Polarity N/A

IR Half-Duplex Time-Out N/A
OnBoard Parallel Port 378
Parallel Port Mode Normal
EPP Version N/A
Parallel Port IRQ 7
Parallel Port DMA Channel N/A
Onboard IDE Both

•

Onboard FDC

This option enables the FDC (Floppy Drive Controller) on the motherboard. The
settings are Auto (AMIBIOS automatically determines if the floppy controller should

be enabled), Enabled, or Disabled. The Optimal and Fail-Safe default settings are
Auto.

•

Onboard Serial Port1

This option specifies the base I/O port address of serial port 1. The settin gs are Auto
(AMIBIOS automatically determines the correct base I/O port address), Disabled,
3F8h, 2F8h, 2E8h, or 3E8h. The Optimal and Fail-Safe defaults are 3F8H.

ESC : Exit $% :
Sel
PgUp/PgDn : Modify
F2/F3 : Color

•

Onboard Serial Port2

This option specifies the base I/O port address of serial port 2. The settin gs are Auto
(AMIBIOS automatically determines the correct base I/O port address), Disabled,
3F8h, 2F8h, 2E8h, or 3E8h. The Optimal and Fail-Safe defaults are 2F8H.

This option works in conjunction with the Infared (IR) device option. If you can
installing IR device, you needs to set this option as “Auto” for IRQ sharing for COM
2 device and IR device.

•

Serial Port2 Mode

37

TX531 User’s Manual

This option is not available if the setting of the

Disabled. This option specifies the serial port 2 mode. The settings are Standard,
IrDA, or ASK IR (the ASK Computer infrared specificatio n). The Optimal and Fail-
Safe default settings are Standard.

•

IR Transmission Mode

This option specifies the type of duplex transmission used by serial port 2. This
option is only valid if the
settings are Half Duplex or Full Duplex. The Optimal and Fail-Safe default settings
are N/A.

•

Receiver Polarity

This option specifies the manner in which the inf rared receive transmission signal is
active. The settings are Active High or Active Low. The Optimal and Fail-Safe
default settings are N/A.

•

Transmitter Polarity

This option specifies the manner in which the infrared send transmission signal is
active. The settings are Active High or Active Low. The Optimal and Fail-Safe
default settings are N/A.

•

Onboard Parallel Port

This option specifies the base I/O port address of the parallel port on the
motherboard. The settings are Auto (AMIBIOS automatically determines the correct
base I/O port address), Disabled, 378h, 278h, or 3BCh. The Optimal and Fail-Safe
default settings are 378H.

Serial Port2 Mode

Onboard Serial Port2

option is not set to Normal. The

option is

•

Parallel Port Mode

This option specifies the parallel port mode. The Optimal and Fail-Safe default
settings are Normal. The settings are:

Setting Description

Normal Specify this option to use the standard 8-bit

IBM PC/AT-compatible Centronics parallel port.

EPP The parallel port can be used with devices that

38

Chapter 3: System BIOS Setting

adhere to the Enhanced Parallel Port (EPP)
specification. EPP uses the existing parallel
port signals to provide asymmetric bidirectional
data transfer driven by the host device.

ECP The parallel port can be used with devices that

adhere to the Extended Capabilities Port (ECP)
specification. ECP uses the DMA protocol to
achieve data transfer rates up to 2.5 Megabits
per second. ECP provides symmetric bidirectional
communication.

The Optimal and Fail-Safe default settings are Normal.

•

EPP Version

This option is only valid if the
specifies the version of the Enhanced Parallel Port specification th at will be used by
AMIBIOS. The settings are 1.7 or 1.9. The Optimal and Fail-Safe default settings
are N/A.

•

Parallel Port IRQ

This option is only valid if the
This option sets the IRQ used by the parallel port. The settings are 5, 7, or Auto
(AMIBIOS automatically sets the correct parallel port IRQ). The Optimal and Fail­Safe default settings are Auto.

Parallel Port Mode

Onboard Parallel Port

option is set to EPP. This option

option is not set to Disabled.

•

Parallel Port DMA Channel

This option is only available if the setting of the
This option sets the DMA channel used by the ECP-capable parallel port. The
settings are None, 0 (DMA Channel 0), 1 (DMA Channel 1), or 3 (DMA Channel 3).
The Optimal and Fail-Safe default settings are 3

•

Onboard IDE

This option specifies the channel used by the IDE controller on the motherboard.
The settings are Disabled, Primary, Secondary, or Both. The Optimal and Fail-Safe
default settings are Primary.

Parallel Port Mode

option is ECP.

39

TX531 User’s Manual

For Fast Configuration

•

Optimal Defaults (Default setting)

The Optimal default values provide optimum performance settings for all devices
and system features.

•

Fail-Safe Defaults

The Fail-Safe default settings consist of the safest set of parameters. Use them if the
system is behaving erratically. They should always work but do not provide optimal
system performance characteristics.

40

LIMITED WARRANTY

Congratulations on your purchase of an the Motherboard . This product is
engineered to give many years of trouble free performance. This limited
warranty is provided for your protection.

The warrants this product to be in good working order for a period of one year
from date of purchase as a new product. In the event of failure of any part(s) due
to defects in material or workmanship occurring within that one year period,
DataExpert will, at its option, either repair or replace the defective product or
part thereof at no charge for the parts or labor.

The limited warranty described above is in addition to whatever implied
warranties may be granted to purchaser by law. To the extent permitted by
applicable law, ALL IMPLIED WARRANTIES INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE ARE
LIMITED TO THE PERIOD FROM T HE DATE OF PURCHASE FOR ONE
YEAR. Some states do not allow limitations on how long an implied warranty
lasts, so the above limitations may not apply to you.

The limited warranty is non-transferable and does not apply if the product has
been damaged by abuse, misuse, modification, accident, misapplication, or
shipment to DataExpert. Service by anyone other than an authorized
DataExpert service agent will also render this limited warranty void. It is the
purchaser's responsibility to determine the suitability of this product for your
purposes. DataExpert does not warrant that this product will meet your
requirements.

LIABILITY DISCLAIMER

The product described in this manual is warranted in accordance with the terms
of the applicable DataExpert product specifications. Product performance is
affected by system configuration, software, application, customer data, operator
control, and other factors.

RMA FORM

When the motherboard can not work well, please fill up
this form to describe related situations. If the
space is not enough to use, you can attach separate
paper.

MODEL: MODEL NO:
HARDWARE

Brand , Model , Speed

CPU:

MHz

CD-PROCESSOR:

Brand , Speed

SIMM:

ns, Q’ty pcs, Total MB

CACHE:

ns, Total K

TAG RAM:

ns

BIOS DATA CODE:
SYSTEM SPEED RUNNING
VIDEO CARD:

, VGA Mode

(ISA, VESA or PCI)

Brand , Speed

Brand , Speed

Brand , Model , Speed

MHz

MHz

Chip , RAM

Bus

OTHER ADD-ON CARDS:

SOFTWARE

OPERATING SYSTEM
VERSION

SOFTWARE PROGRAM

TX531 User’s Manual

BIOS SETUP: DRAM Wait State
CACHE Wait State

If you change BIOS SETUP, please describe the changes:

<A>ERROR

HANG UP

&

ERROR

HARD DISK R/W ERROR

&

ERROR

OTHER

&

<B>ERROR MESSAGES ON YOUR SCREEN (PLEASE SHOW US THE
WHOLE SENTENCE)

<C>PROBLEM DESCRIPTION

NO SCREEN

&

FLOPPY R/W

&

PARITY MEMORY

&

2