Epson ActionTower 3000 Computer User Manual

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IMPORTANT NOTICE

DISCLAIMER OF WARRANTY

Epson America makes no representations or warranties, either express or implied, by or with respect to anything in this manual, and shall not be liable for any implied warranties of merchantability and fitness for a particular purpose or for any indirect, special, or

consequential damages. Some

consequential

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Epson America, Inc. No patent liability is assumed with respect to the use of

contained herein. Nor is any liability assumed for damages resulting from the use of the information contained subject to change without notice.

EPSON is a registered trademark

EPSON Connection and EPSON Direct are service marks of Epson America, Inc. General Notice: Other product names used herein are for identification purposes only and

may be trademarks of their respective companies

damages,

states do

so this exclusion may

herein. Further, this publication and features

not allow the exclusion

not

apply to you.

TRADEMARKS

of Seiko Epson Corporation.

of incidental or

described herein are

information

The Energy Star emblem does not represent EPA endorsement of any product or service.

8/94

Important Safety Instructions

Read all of these instructions and save them for later reference. Follow all warnings and instructions marked on the computer.

Unplug the computer before cleaning. Clean with a damp cloth only. Do not spill liquid on the computer.

Do not place the computer on an unstable surface or near a radiator or heat register.

Do not block or cover the openings in the computer’s cabinet. Do not insert objects through the slots.

Use only the type of power source indicated on the computer’s label.

Connect all equipment to properly grounded power outlets. Avoid using outlets on the same circuit as photocopiers or air control systems that regularly switch on and off.

Do not let the computer’s power cord become damaged or frayed.

If you use an extension cord with the computer, make sure the total ampere rating of the devices plugged into the extension cord does not exceed the cord’s ampere rating. Also, make sure the total of all devices plugged into the wall outlet does not exceed 15 amperes.

Except as specifically explained in this User’s Guide, do not attempt to service the computer yourself. Adjust only those controls that are covered by the operating instructions.

Unplug the computer and refer servicing to qualified service personnel under the following conditions:

If the power cord or plug is damaged; if liquid has entered the computer; if the computer has been dropped or the cabinet damaged;

if the computer does not operate normally or exhibits a distinct

change in performance.

If you plan to use the computer in Germany, observe the following:

To provide adequate short-circuit protection and over-current

protection for this computer, the building installation must be protected by a 16 Amp circuit breaker.

Beim Anschluß des Computers an die Netzversorgung muß sichergestellt werden, da8 die Gebäudeinstallation mit einem

16 A Uberstromschutzschalter abgesichert ist.

iii

Importantes instructions de sécurité

Lire attentivement les instructions suivantes et les conserver pour les consulter en cas de besoin. Observer soigneusement tous les avertissements et directives marques sur l’ordinateur.

Débrancher l’ordinateur avant de le nettoyer. N’utiliser qu’un chiffon humide. Veiller à ne pas renverser de liquides sur l’appareil.

Ne pas placer l’ordinateur sur une surface instable ni près d’une source de chaleur.

Ne pas bloquer ni couvrir les orifices d'aération de l’appareil. Ne pas introduire d’objets dans les ouvertures.

Utiliser settlement le type de source d’alimentation électrique indiqué sur I’étiquette.

Tout l’équipement doit âtre branché sur des prises de courant avec contact de terre. Ne jamais utiliser une prise sur le même circuit qu’un appareil à photocopies ou un système de contrôle de ventilation avec commutation marche-arrêt automatique.

S'assurer que le cordon d’alimentation de l’ordinateur n’est pas abîmé ni effiloché.

Dans le cas où on utilise un cordon de rallonge avec l’ordinateur,

s’assurer que l’intensité en ampères requise pour tous les appareils branchés sur ce cordon ne soit pas supérieure à la capacité du cordon. S’assurer aussi que cette intensté ne dépasse jamais la somme de 15 amperes pour l’ensemble des appareils.

Sauf dans les cas spécifiques expliqués dans ce manuel de l’usager, ne pas essayer d’entretenir ou de réparer l’ordinateur soi-même. N’ajuster que les commandes décrites dans les directives.

Débrancher l!ordinateur et contacter un technicien qualifié dans les circonstances suivantes:

Si le cordon ou la prise sont abîmés; si un liquide a pénétré à l’intérieur de l’appareil; si on a laissé tomber l’appareil ou si le boîtier est endommagé; si l’ordinateur ne fonctionne pas normalement ou fonctionne d'une manière très différente de l’ordinaire.

Pour utiliser l’ordinateur en Allemagne, il est nécessaire que le bâtiment soit muni d’un disjoncteur de 16 amperes pour protéger l’ordinateur contre les courts-circuits et le survoltage.

FCC COMPLIANCE STATEMENT

FOR AMERlCAN USERS

This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio and television reception. However, there is no guarantee that interference will not occur in a particular installation. If this equipment

does cause interference to radio and

television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the

receiver is connected Consult an experienced radio/TV technician for help.

WARNING

The

connection of a non-shielded equipment interface cable to this equipment will invalidate the FCC Certification of this device and may cause interference levels that exceed the limits established by the FCC for this equipment. It is the responsibility of the user to obtain and use a shielded equipment interface cable with this

equipment has

more than one interface connector, do not leave cables connected to unused

device. If this

interfaces. Changes or modifications not expressly approved by the manufacturer

could void the

user’s authority to operate the equipment.

FOR CANADlAN USERS

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.

Le present appareil numérique n’émet pas

bruits radioéelectriques dépassant les limites applicables aux appareils numériques de Classe B prescrites dans le règlement sur le brouillage radioélectrique édicté par le Ministère des Communications du Canada.

Contents

Introduction

Video Energy Savings VGA Drivers optional Equipment

How to Use This Manual Where to Get Help

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CompuServe On-line Support

Chapter 1

Unpacking Your Computer

Setting up Your system

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Setting the Voltage Selector Switch Connecting System Components Connecting the Power Cord Turning Your System On and Off Running the SETUP Program

Starting the SETUP Program The System Setup Option The Fixed Disk Setup Option

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The Advanced System Setup Option

Setting the Boot Options

The System Security

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and Anti-Virus Options Using the Green PC Features The System Summary Option Exiting SETUP Post-SETUP Procedures

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2 3 3 4 5 6 7

1-1 1-2 1-4 1-5 1-5 1-7 1-8 1-10 1-11 1-12 1-14 1-15

1-18 1-19 1-20 1-20

Chapter 2

Using Your Computer

Working Comfortably Stopping a

Comman Resetting the Computer Using Energy Wisely Using Your Green PC Features Changing the Processor Speed

chapter

Installing and Removing Options

Removing the Cover Replacing the Cover

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d or Program

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Locating the Internal Components Changing the Jumper Settings

Setting the Jumpers

Installing Memory Modules

lnserting SlMMs

..........................

Removing SIMMs installing an Option Card Removing an Option Card Adding Video Memory Installing External Cache

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installing the External Cache Chips

Upgrading the Microprocessor

....................

Replacing the Processor Chip

Post-installation Procedures

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

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

3-8

3-10 3-12 3-14 3-15 3-18 3-18 3-21 3-22 3-24 3-25 3-27

Chapter 4

Removing Mounting Frames

Installing a Drive in the Front Internal Drive Bay

Removing a Drive From the Front Internal Drive Bay Installing a Drive in an External Drive Bay

Removing a Drive From an External Drive Bay

Installing a Drive in the Rear Internal Drive Bay Removing a Drive From the Rear Internal Drive Bay Post-installation Procedures

Installing

and Removing Drives

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4-3

4-4 4-8 4-10 4-13 4-15 4-19 4-21

Chapter 5

Trobleshooting

Identifying Your System The Computer Will Not Start

........................

.....................

The Computer Does Not Respond Keyboard Problems Mouse Problems.. Monitor Problems..

Diskette Problems

Diskette Drive Problems

Hard Disk Drive Problems Password Problems Software Problems Printer Problems Option Card Problems Memory Module Problems Controller Problems

External Cache Problems

Appendix A Specifications

CPU and Memory

Controllers

lnterfaces

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.................................

Mass Storage Keyboard Mouse

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...................................

SETUP Program Physical Characteristics Power Supply

Option Slot Power Limits Environmental Requirements

Video Resolutions and Colors

Hard Disk Drive Types Drive Option Information Options Available from EPSON Tested Operating Environments DMA Assignments

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5-1 5-3

5-4 5-5

5-5 5-6

5-7

5-8

5-10

5-11

5-12

5-12 5-13 5-14 5-14

A-1 A-3 A-3 A-4 A-5 A-5 A-5 A-6 A-6 A-6 A-7

A-7 A-8

A-10 A-11`

A-12 A-12

vii

Hardware Interrupts System Memory Map

..........................

System I/O Address Map

Connector Pin Assignments

Glossary

Index

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A-13 A-14 A-14

A-16

viii

lntroduction

Your EPSON® computer provides powerful system performance and offers a wide range of enhancement options. System features include:

Choice of microprocessor: Intel® or Cyrix® 486SX/25 or /33; DX/33, /40, or /50; DX2/50 or /66; SX2/50; DX4/75 or /100; or Pentium™ OverDrive™

Energy Star compliant, low-power standby mode for the hard disk drive and video display

4MB or 8MB of internal memory, expandable to 64MB System and video BIOS shadow RAM 8KB of internal cache integrated into the microprocessor

and support for up to 256KB of optional external cache on the main system board

Integrated high-speed, local bus SVGA video interface 512KB (expandable to 1MB) or 1MB of on-board video

memory Video resolutions up to 1280 x 1024 in 16 colors (with 1MB

of VRAM)

True

Color™ support in the 640 x 480 resolution with 1MB

of VRAM Two built-in serial ports and one built-in bidirectional

parallel port One built-in PS/2™ compatible keyboard port and one

built-in PS/2 compatible mouse port

Introduction 1

Five 16-bit, ISA-compatible option slots Space for up to seven mass storage devices (four externally

accessible and three internal) On-board support for up to two IDE hard disk drives and

two diskette drives (or one diskette drive and one tape drive)

Math coprocessor integrated into the DX, DX2, and Pentium microprocessors

Real-time clock and calendar on main system board with built-in rechargeable battery backup.

Using the built-in interfaces, you can

connect

most of your peripheral devices directly to the computer so you do not have to install option cards. You can use the option slots to enhance your system with extra functions such as a modem card, a network controller card, or additional interface ports.

The shadow RAM feature allows your system to speed up processing by moving the system and video BIOS into the RAM area of memory.

Video

The local bus SVGA video interface provides data transfer at the full speed of the processor, rather than at the standard

8.33 MHz ISA bus speed. With 512KB of video RAM, the SVGA controller supports

standard resolutions up to 640 x 480 in 16 colors and extended resolutions up to 640 x 480 in 256 colors or 1024 x 768 in 16 colors (interlaced and non-interlaced). With 1MB of VRAM, it

supports extended resolutions up to 1280 x 1024 in 16 colors.

2 Introduction

Energy Savings

In standard configurations, this computer complies with the United States Environmental Protection Agency’s Energy Star Program, which promotes the manufacture of energyefficient printers, computers, and monitors. Your computer’s “Green PC” feature places the hard disk drive in a low-power standby mode when the mouse and keyboard have been inactive for a specified period of time. It also stops sending video signals to your monitor.

Note

If you have an Energy Star compliant monitor, it also goes into a low-power standby mode because it isn’t receiving video signals from your computer. (Screens on noncompliant monitors go blank, but do not enter a low-power standby mode.)

VGA Drivers

Your computer comes with VGA drivers and utilities for use with the integrated video interface. With these drivers, you can take advantage of the extended VGA features such as higher resolutions and 132-column text mode when you run popular applications. If your system was configured for you, these drivers and utilities may be installed on your hard disk. If you need to install them yourself, see the instructions in Chapter 1. To obtain drivers for additional applications, call the EPSON

Connection”” or access the Epson America Forum on CompuServe.*

Introduction 3

Optional Equipment

You can easily upgrade your computer by installing additional memory and a wide variety of options, as described in Chapters 3 and 4.

Memory

Video memory

CPU

Cache

Drives

By adding 1MB, 2MB, 4MB, 8MB, 16MB, or 32MB SIMMs (single inline memory modules) to the main system board, you can expand the computer’s memory up to 64MB.

You can increase the video memory in your system to 1MB, which allows you to use higher resolutions with more colors.

Your system supports a variety of microprocessors, including 5 Volt, 3.3 Volt,

3.45 Volt, and 3.6 Volt processors; see Chapter 3 for more information.

You can increase the external cache memory size to 64KB, 128KB, or 256KB by installing cache SRAM chips on the main system board, allowing you to access data faster and improve overall system performance.

Your system supports up to seven mass storage devices, including hard disk drives, diskette drives, a tape drive, a CD-ROM drive, or an optical drive.

4 Introduction

How to Use This Manual

You do not have to read everything in this manual; check the

following chapter summaries. Chapter 1 provides simple instructions for setting up your

system and for turning it on and off. It also describes running the SETUP program to define your computer’s configuration.

Chapter 2 covers general operating procedures, resetting the computer, using the Green PC features, and changing the processor speed.

Chapter 3 describes how to remove and replace the computer’s cover, change jumper settings, and install optional equipment such as option cards and memory modules.

Chapter 4 explains how to install and remove drives.

Chapter 5 contains troubleshooting tips. Appendix A lists the specifications of your computer.

At the end of this manual you’ll find a Glossary, an Index, and

a list of EPSON’s U.S. and international marketing locations.

Introduction 5

Where to Get Help

If you purchased your computer in the United States or Canada, EPSON provides customer support and service through a network of Authorized EPSON Customer Care

Centers. EPSON also provides support services through the

EPSON Connection. In the United States, dial (800) 92245911. In Canada, dial (800) GO-EPSON.

Call the EPSON Connection for the following:

Technical assistance with the installation, configuration,

and operation of EPSON products Assistance in locating your nearest Authorized EPSON

Reseller or Customer Care Center Customer Relations EPSON technical information library fax service Product literature on current and new products.

You can purchase accessories, manuals, or parts for EPSON

products from EPSON Accessories at (800) 873-7766 (U.S. sales

only). In Canada, call (800) GO-EPSON for sales locations. When you call for technical assistance, be ready to identify

your system and its configuration, and provide any error messages to the support staff. See Chapter 5 for more information.

If you purchased your computer outside the United States or Canada, contact your EPSON dealer or the marketing location

nearest you for customer support and service. International marketing locations are listed at the end of this manual

6 Introduction

If you need help with any software application program you are using, see the documentation that came with that program for technical support information.

CompuServe On-line Support

If you have a modem, the fastest way to access helpful tips, specifications, drivers, application notes, tables for DIP switch or jumper settings, and bulletins for EPSON products is through the Epson America Forum on CompuServe.

If you are not currently a member of CompuServe, you are eligible for a free introductory membership as an owner of an EPSON product. This membership entitles you to:

An introductory $15 credit on CompuServe Your own user ID and password A complimentary subscription to CompuServe

CompuServe’s monthly publication.

To take advantage of this offer, call (800)

States and Canada and ask for representative #529. In other countries, call the following U.S. telephone number:

(614) 529-1611

If you are already a CompuServe member, simply type GO

EPSON

Forum;

or your local CompuServe access number.

at the menu prompt to reach the Epson America

845-8199

Magazine,

in the United

Introduction 7

Chapter 1

Setting Up Your System

This chapter briefly describes how to set up your computer. It includes the following information:

Unpacking your computer

Setting the voltage selector switch

Connecting system components Turning the computer on and off

Running the SETUP program

Post-SETUP procedures.

Unpacking Your Computer

When you unpack your system, make sure you have the items shown below.

setting Up Your system

1-1

If you purchased any optional equipment that goes inside the

computer-such as option cards, memory modules, or

drives-you should install these devices before you

connect

your computer. See Chapters 3 and 4 for instructions.

Setting the Voltage Selector Switch

Your system is powered by a 200 Watt power supply. The

power supply voltage is controlled by a voltage selector switch

on the computer’s back panel. You can set this switch to

110 VAC or 220 VAC.

EPSON ships the computer with the voltage selector switch set

to 110 VAC. This setting is appropriate for line source voltages

between 100 and 120 VAC, and is generally the appropriate

setting to select if you plan to use your computer in North

America, South America, or Japan.

If you plan to operate the computer in the United Kingdom,

Europe, or some South American countries, you will probably

need to reset the voltage selector switch to 220 VAC. Doing so

allows your computer to handle line source voltages between

200

and 240 VAC, which are standard in Europe.

1-2

Setting Up Your System

caution

Before you turn on the power to your system, make sure the voltage selector is set to the appropriate setting for the electrical power source in your location or you will seriously damage your system.

To change the voltage selector switch setting, slide the switch to the right to select 220 VAC or to the left to select 110 VAC.

voltage selector switch

Setting Up Your System

1-3

Connecting System Components

Use the following illustration to locate the ports on the back of your system as you connect the keyboard, monitor, printer, and other devices.

caution

Although the connectors and ports for the mouse and keyboard are physically identical, they cannot be used interchangeably. Be sure to plug the mouse connector into the MOUSE port, or you may damage your system.

1-4

setting Up Your system

Your system also includes two removable panels below the option slots; these panels provide access to a game port on the main system board (which you can enable via a jumper) or a

game port on an option card.

Connecting the Power Cord

Follow these steps to connect the power cord:

Plug the power cord into the power inlet on the back panel

of the computer.

WARNING

To avoid an electric shock, be sure to plug the cord into the computer before plugging it into the wall outlet.

Plug the other end of the power cord into an appropriate

grounded electrical outlet.

After you connect the components of your system, you are ready to turn on the power.

Turning Your System On and Off

Before you turn on your system, be sure to read the Important

Safety Instructions at the beginning of this manual.

caution

If there is a protective card in a diskette drive, remove it now

or you may damage your drive.

First turn on the monitor, printer, and any other external

devices connected to the computer.

Setting Up Your System

1-5

Then turn on the computer by pressing the power button

located on the left side of the front panel.

The power indicator lights up. After a few seconds, the computer performs its power-on diagnostics. This is a series of

checks the computer runs each time you turn it on to make sure everything is working correctly.

If necessary, use the controls on your monitor to adjust the

brightness and contrast until you can easily see the characters

on the screen.

1-6

setting up Your system

Whenever you turn off your system, be sure to save your data and exit any application program you are using. Then check the hard disk drive light and the diskette drive light(s) to make sure they are not on. Press the power button to turn off the computer and then turn off the monitor, printer, and any other peripheral devices.

Now follow the instructions below to configure your system using the SETUP program.

Running the SETUP Program

be sure to run SETUP the first time you use your computer, so you can verify or update the configuration information. You also may need to run SETUP again later if you change your configuration.

SETUP lets you verify or change the following:

System settings such as date, time, diskette drive type(s), and video display type

Automatic or manual selection of hard disk drive(s)

Automatic or manual selection of advanced hardware features for optimizing system performance

System booting options Password security and anti-virus features Green PC options, such as the time intervals before the

system and the hard disk drive go into low-power standby mode.

SETUP also allows you to see summar system.

y information about your

Setting Up Your System

1-7

The SETUP program and the factory default settings are stored in the computer’s ROM BIOS (read-only memory, basic input/output system). The configuration information you enter is stored in an area of memory called CMOS RAM. This memory is backed up by a battery, so it is not erased when you turn off or reset the computer.

Starting the SETUP Program

When you start your computer, it performs some power-on diagnostics. During these diagnostics, you may see the following message:

press <F2> to enter SETUP

(In SETUP, you can disable this message, if desired.)

Press F2 to run

SETUP. This message is only on the screen for a few seconds. If you missed it, restart the computer and try again.

If the system detects an error in your configuration, you hear two beeps and see an error message followed by this message:

Press <F1> to resume, <F2> to Setup

Press F2 to run SETUP. SETUP displays the Main Menu. From this menu, you can

select the various options to identify your system’s configuration and then save your new values to CMOS. If you change your mind, you can cancel any changes you have made and restore the default values stored in ROM or load the values previously stored in CMOS.

1-8

setting up Your system

The table below lists the keys you can use to perform SETUP operations.

SETUP function keys

Key

Home End Move the cursor to the top or bottom of the menu F1 or AltH

Function

Move the cursor to the next or pervious modifiable option

Displays a help screen describing the option

currently

selected

F5 or F6 or + or

Spacebar F9

F10

Enter

Esc or Alt X Returns to the previous screen

Selects the previous value Selects the next value

Loads the factory default values for the SETUP options on the current screen

Ignores any changes you have made on the current

screen

Selection the current option or value

Whenever you are in SETUP, the bottom of the screen lists the

keys you can press to perform specific functions.

Setting Up Your System

1-9

The System Setup Option

From the System Setup screen, you can set the options described below.

Setting the time and date

The real-time clock in your computer continuously tracks the date and time-even when the computer is turned off. Once you set the System Time and

System

Date options, you should not need to change them, unless you adjust the time for daylight savings or a different time zone. (The computer automatically changes the date for leap years.)

Setting the video display type

The Video

System option allows you to define the type of display adapter you are using. If you connected your monitor to the computer’s built-in VGA port, select

If you

connected

a monitor that doesn’t support VGA to a

EGA/VGA

video adapter card installed in your system, select either the

CGA 80 X 25

or the

Monochrome

option. Also make sure

you disabled the onboard VGA controller by setting jumpers

J14 and J15 to the Off position. (See Chapter 3 for instructions.)

Checking system memory

When you boot your system, the system BIOS detects the total

memory size automatically. You see the memory configuration displayed in the System fields on this SETUP screen.

You cannot

change these values; if they are not what you expect them to be, check that the SIMM(s) are securely seated in their sockets. (See Chapter 3 to locate the SIMM sockets.)

Memory

and

Extended Memory

1-10 Setting

Up Your System

Setting the diskette drive type(s)

On your system, diskette drive A is the 3.5-inch high-density drive installed in your computer. You may also have another drive of a different size or capacity; this is drive B. Check the settings for both drives and correct them if necessary.

The Fixed Disk Setup Option

The options on the Fixed Disk Setup screen define the types of hard disk drives you installed in your system. From this screen,

select Fixed Dick 0 Control or Fixed Dick 1 Control.

Your computer comes with a hard disk auto-sensing feature. Press Enterwhenthe highlighted. The system detects the type of hard disk drive and fills in the remaining fields on the screen.

If you are using an older drive or a preformatted drive, it may not support the auto-sensing feature. If you press Enter when the

Autotype

drive parameters do not match your drive, check Appendix A

to see if your drive’s parameters are included in the hard disk drive table. If not, you need to define your own drive type or reformat the disk. See the next section for instructions on how

to define your own drive type.

Autotype Fixed Disk option is

Fixed Disk

option is highlighted and the

Defining your own drive type

If the parameters for your hard disk do not match the parameters detected by the auto-sensing feature, or if you want

to use your drive with parameters other than the defaults, you can define your own type. (See Appendix A for a list of predefined hard disk drive types and their parameters.)

Setting Up Your System

1-11

To define your own drive type, follow these steps:

Move the cursor to me and select User.

Type the values in each field that are appropriate for your

hard disk drive.

When you exit SETUP, make sure you save your changes.

The Advanced System Setup Option

When you select this option from the Main Menu, you see the Advanced System Setup screen, which contains the options described below.

Your system can automatically configure the Advanced

System

problems, you should let the system configure these options. However, if you connected a scanner or a parallel port network adapter to your parallel port, be sure to select Advanced chipset parallel port to page 1-13 for more information.

Setup options for you. To avoid configuration

Control so you can change the operation of the

PS2

mode (for bidirectional operation). See

Configuring cache memory

The system can configure your Memory can manually set them. If you installed external cache, enabling cache memory improves system performance, especially in large data’ retrieval and processing environments.

If you choose to configure the cache memory yourself (rather than let the system configure it for you), you can define the write and burst wait states and two non-cacheable areas of

memory. However, it’s a good idea to let the system

automatically configure these features.

1-12 Setting Up Your System

Cache options or you

Configuring memory shadow

Setting Up Your System

1-13

The system can configure the

Memory

Shadow options or you

can manually set them. You can enable or disable shadowing of your system and video memory and control the specific blocks of ROM used for this purpose.

Your computer can access RAM faster than ROM. The options

on this screen allow your system to copy the contents of its system and/or video ROM into RAM. When you use shadowing, your system can perform certain operations faster, providing a significant increase in performance.

Note

For the best system performance, always set the System

shadow and the Video

shadow options to Enabled.

If you enable shadowing for specific blocks, the ROM located in these blocks is copied to the shadow area.

Configuring chipset registers

The system can set your Advanced Chipset Control

options or you can manually change the values in the chipset registers. setting these values correctly increases your system performance; however, setting them incorrectly may cause your system to malfunction or shut down. Be sure to set the Auto Configuration option to Enabled to let the system automatically configure these options to avoid problems.

However, if you connected a

adapter to your parallel port, you should set Auto

Configuration

Printer Port Control option to PS2 made (for

bidirectional operation). The default setting for the parallel port

mode (for unidirectional operation).

scanner

to Disabled so you can change the

or a parallel port network

Setting the Boot

1-14

Setting Up Your System

Options

When you select Boot Options from the Main Menu, you see the boot Options screen, which contains the options described below.

Selecting the drive boot sequence

The

Disk

drive boot sequence option determines the order in which the computer checks the drives when it looks for the operating system.

If you select A:

then C:, each time you turn on the computer, it first tries to load the operating system from drive A. If drive A doesn’t contain an operating system, the computer loads it from drive C. If you select C :

then A : , the computer tries to load the operating system from drive C first. If drive C doesn’t contain an operating system, the computer tries to load it from drive A. If you select C :

only, the

computer tries to load the operating system from drive C only.

Setting the floppy seek option

If you set the

only, you can disable the Floppy seek option so the

Disk

drive boot sequence option to

system does not try to access the diskette drive at startup. Disabling the Floppy seek option decreases the time needed to boot the system.

Disabling the-SETUP prompt

The

Display SETUP

prompt during

POST

option allows

you to disable the message Preen <F2> to enter SETUP

that you see during power-on diagnostics. You may want to disable this prompt to prevent unauthorized users from seeing

the SETUP prompt. Even when the message is disabled, however, you can still start SETUP by pressing F2 within the

allowed amount of time.

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