Acer 486 User manual

6\VWHP$*

User’s Guide

&RS\ULJKW

this publication may be reproduced, transmitted, transcribed, stored in

a retrieval system, or translated into any language or computer

language, in any form or by any means, electronic, mechanical,

magnetic, optical, chemical, manual or otherwise, without the prior

written permission of this company.

'LVFODLPHU

This company makes no representations or warranties, either

expressed or implied, with respect to the contents hereof and

specifically disclaims any warranties, merchantability or fitness for any

particular purpose. Any software described in this manual is sold or

licensed "as is". Should the programs prove defective following their

purchase, the buyer (and not this company, its distributor, or its dealer)

assumes the entire cost of all necessary servicing, repair, and any

incidental or consequential damages resulting from any defect in the

software. Further, this company reserves the right to revise this

publication and to make changes from time to time in the contents

hereof without obligation to notify any person of such revision or

changes.

Intel is a registered trademark of Intel Corporation.

IBM is a registered trademark and PS/2 is a trademark of International Business

Machines Corporation.

MS-DOS is a registered trademark of Microsoft Corporation.

Other brand and product names are trademarks and/or registered trademarks of their

respective holders.

iii

$ERXWWKLV0DQXDO

Purpose

This user’s guide aims to give you all the information you need to

operate the system properly.

Manual Structure

This user’s guide consists of two chapters as follows:

Chapter 1 System Board

This chapter describes the system board and all its major

components. It contains the system board layout, jumper

settings, cache and memory configurations, and other internal

devices.

Chapter 2 BIOS Utility

This chapter explains the system BIOS and tells how to

configure the system by setting the BIOS parameters.

Conventions

The following conventions are used in this manual:

Text entered by user Represents text input by the user.

Screen messages Denotes actual messages that

appear onscreen.

, etc. Represent the actual keys that you

have to press on the keyboard.

NOTE

Gives bits and pieces of additional

information related to the current

topic.

WARNING

Alerts you to any damage that

might result from doing or not doing

specific actions.

CAUTION

Suggests precautionary measures

to avoid potential hardware or

software problems.

IMPORTANT

Reminds you to take specific action

relevant to the accomplishment of

the procedure at hand.

TIP

Tells how to accomplish a

procedure with minimum steps

through little shortcuts.

7DEOHRI&RQWHQWV

Chapter 1 System Board

1.1 System Board Layout .................................................1-2

1.2 ESD Precautions ........................................................1-4

1.3 Pre-installation Instructions.........................................1-4

1.4 Jumper Settings..........................................................1-5

1.5 Installing Memory........................................................1-8

1.5.1 Installing a SIMM.........................................1-9

1.5.2 Removing a SIMM.....................................1-10

1.5.3 Reconfiguring the System .........................1-10

1.6 Upgrading the CPU...................................................1-11

1.6.1 Unpacking the Upgrade CPU....................1-11

1.6.2 Installing the Upgrade CPU.......................1-11

1.7 Power Daughter Board.............................................1-13

1.8 Upgrading VGA Memory...........................................1-14

1.9 Upgrading Cache Memory........................................1-16

1.10 Post-installation Instructions.....................................1-17

1.11 Power-Management Feature....................................1-18

1.12 Advanced Power Management (APM) .....................1-21

1.13 Intel SL-Enhanced CPU............................................1-22

1.14 VESA DPMS.............................................................1-22

1.15 Error Messages ........................................................1-23

1.15.1 Software Error Messages..........................1-23

1.15.2 System Error Messages............................1-23

1.15.3 Correcting Error Conditions......................1-26

Chapter 2 BIOS Utility

2.1 Entering Setup ........................................................... 2-2

2.2 Basic System Configuration....................................... 2-3

2.2.1 Date and Time............................................ 2-5

2.2.2 Diskette Drives............................................ 2-6

2.2.3 IDE Fixed Disk Drives................................. 2-6

2.2.4 System Memory.......................................... 2-9

2.2.5 Math Coprocessor ...................................... 2-9

2.2.6 Video Display............................................ 2-10

2.2.7 Communication Status.............................. 2-10

2.2.8 Enhanced IDE Features ........................... 2-11

2.2.9 Num Lock After Boot................................. 2-12

2.2.10 Memory Test............................................. 2-12

2.2.11 Auto-Configuration Mode.......................... 2-12

2.2.12 Fast Boot Mode......................................... 2-12

2.3 Advanced System Configuration.............................. 2-13

2.3.1 Shadow RAM............................................ 2-13

2.3.2 System Cache........................................... 2-14

2.3.3 System Speed........................................... 2-14

2.3.4 Memory at 15MB-16MB............................ 2-14

2.4 Power-Saving Configuration .................................... 2-15

2.4.1 Power-Management Mode ....................... 2-16

2.4.2 Monitored Activities................................... 2-18

vii

2.5 System Security Setup .............................................2-19

2.5.1 Disk Drive Control......................................2-19

2.5.2 Onboard Communication Ports.................2-21

2.5.3 Setup Password ........................................2-23

2.5.4 Power-On Password..................................2-24

2.6 Load Setup Default Settings.....................................2-25

2.7 Leaving Setup...........................................................2-26

2.8 Fixed Disk Types......................................................2-27

viii

List of Figures

1-1 System Board Layout................................................. 1-3

1-2 Jumper Locations....................................................... 1-5

1-3 Installing a SIMM........................................................ 1-9

1-4 Removing a SIMM.................................................... 1-10

1-5 Pin 1 Indicator on the Upgrade CPU and Socket..... 1-12

1-6 Installing an Upgrade CPU....................................... 1-12

1-7 Installing VGA RAM.................................................. 1-15

1-8 Installing Cache........................................................ 1-16

List of Tables

1-1 System Board Jumpers.............................................. 1-6

1-2 CPU Clock Selection.................................................. 1-6

1-3 CPU Type Selection................................................... 1-7

1-4 Cache RAM Size Selection........................................ 1-7

1-5 Memory Configurations.............................................. 1-8

1-6 Cache Size Options and Chip Locations.................. 1-16

1-7 Power-Management Modes..................................... 1-20

1-8 VESA DPMS Modes................................................. 1-22

1-9 System Error Messages........................................... 1-24

2-1 IDE Fixed Disk Configurations................................... 2-6

2-2 Drive Control Parameters......................................... 2-20

2-3 Serial Port 1 Parameters.......................................... 2-21

2-4 Serial Port 2 Parameters.......................................... 2-21

2-5 Parallel Port Control Parameters ............................. 2-22

2-6 Fixed Disk Types...................................................... 2-27

Other manuals for 486

Table of contents

Popular Motherboard manuals by other brands

DFI

DFI SD170 user manual

ASROCK

ASROCK ROMED8-2T user manual

Asus

Asus P2L97A user manual

Winmate

Winmate IC70 user manual

Asus

Asus MES-B user manual

Grantech

Grantech SYS8F377VGGA-3OMN user manual

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR user guide

Gigabyte

Gigabyte GA-9IVDT user manual

Texas Instruments

Texas Instruments ADS8372EVM user guide

Commell

Commell MS-C73 user manual

IBT Technologies

IBT Technologies MB860 user manual

Nvidia

Nvidia TEGRA DG-04927-001_V01 user guide

Biostar

Biostar M7VIT Bravo Description

Intel

Intel D33217CK specification

Asus

Asus F1A55-M LX PLUS R2.0 user manual

EPC

EPC EPC9147C quick start guide

Asus

Asus EX-B760M-V5 D4 quick start guide

EPOX

EPOX MU-8KHA0010 user manual