Epson U11, U12 User Manual

Download

Epson® Progression™ User’s Guide

Update

Please note that the memory configuration table shown on pages 3-12 and

3-13

of your

User’s Guide

is incorrect. Please

replace it with the following table.

SIMM configuration

Socket U11

1MB 1MB

4MB 4MB

14MB 16MB

64MB**

* Standard soldered memory **

Check with your dealer to see if this SIMM is available

With this memory configuration, the 4MB of soldered memory is disabled-

Socket U12

64MB**

Total memory

4MB* 6MB

12MB

36MB

128 MB t

Epson is a registered trademark and Progression is a trademark of Seiko Epson Corporation.

1992 by Epson America, Inc.

m02184 400183400

EPSON® PROGRESSION™

User’s Guide

l%is

manual is printed on recycled paper and is 100% recyclable

FCC COMPLIANCE STATEMENT

FOR AMERICAN 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 installations 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 the dealer or 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 KC for this equipment. It is the responsibility of the user to obtain and use a shielded equipment interface cable with this device. If this equipment has more than one interface connector, do not leave cables

connected to unused

interfaces. Changes or modifications not expressly approved by the manufacturer could void the

user’s authority to operate the equipment.

FOR CANADIAN 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.

L.e p&sent appareil num&que

n&net

pas de bnits

radio&&iques d+assant

les limites applicables aux appareik num&riques de Chsse B prescrites dans le rhgkment sur le brouillageradioe]ectriqw~ct~parle~~des~~~ti~duCaMda

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 states do not allow the exclusion of incidental or consequential damages, so this exclusion may not apply to you

All rights

system, or transmitted, in any form or by any means, electronic, mechanical, photocopying. recording, or otherwise, America, Inc. No patent liability is assumed with respect to the use of information contained herein. Nor is any liability assumed for damages resulting from the use of the information contained herein. Further, this publication and features described herein are subject to change without notice.

Epson is a registered trademark and Epson Progression is a trademark of Seiko Epson Corporation.

VirtualCache is a trademark of Epson Portland, Inc. General notice: Other product names used herein are for identification purposes only and

may be trademarks of their respective companies.

reserved No part of this publication may be reproduced, stored in a retrieval

without the prior written permission of Epson

TRADEMARKS

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 from the wall outlet before cleaning. Use a damp cloth for cleaning; do not use liquid or aerosol cleaners.

Do not spill liquid of any kind on the computer.

Do not place the computer on an unstable cart, stand, or table.

Slots and openings in the cabinet and the back or bottom are provided for ventilation; do not block or cover these openings. Do not place the computer near or over a radiator or heat register.

Operate the computer using the type of power source indicated on its label. If you are not sure of the type of power available, consult your dealer or local power company.

If you plan to operate the computer in Germany, observe the

following safety precaution: To provide adequate short-circuit protection and overcurrent

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

Connect all equipment to properly grounded (earthed) power outlets. If you are unable to insert the plug into an outlet, contact your electrician to replace your outlet. Avoid using outlets on the same circuit as photocopiers or air control systems that regularly switch on and off.

10.

Do not allow the computer’s cord to become damaged or frayed.

iii

11.

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

12.

Do not insert objects of any kind into this product through the cabinet slots.

13.

Except as specifically explained in this User’s Guide, do not attempt to service the computer yourself. Refer all servicing to qualified service personnel.

14.

Unplug the computer from the wall outlet and refer servicing to qualified service personal under the following conditions:

A. When the power cord or plug is damaged. B.

If liquid has entered the computer.

C. If the computer does not operate normally when the

operating instructions are followed. Adjust only those controls that are covered by the operating instructions. Improper adjustment of other controls may result in damage and often requires extensive work by a qualified technician to restore the computer to normal operation.

If the computer has been dropped or the cabinet has been damaged.

E. If the computer exhibits a distinct change in performance.

Instructions Importantes de Sécurité

Lire compMtement les instructions qui suivant et les conserver

pour references futures.

Bien suivre tous les avertissements et les instructions indiquks l’ordinateur.

Wbrancher l’ordinateur de toute sortie murale avant le nettoyage.

Utiliser un chiffon humide; ne jamais utiliser un nettoyeur

liquide ou une bonbonne aerosol.

Ne jamais renverser un liquide d’aucune sorte sur l’ordinateur.

Ne pas placer l’ordinateur sur un chariot, un support, ou une table instable.

Les events dans le meubles, a l’arriere et en dessous sont concus pour Yakration; on ne doit jamais les bloquer. Ne pas placer l’ordinateur pres d’une source de chaleur dire&e.

Le fonctionnement de l’ordinateur doit s’effectuer conformement au type de source d’aiimentation indiqu&e sur l’etiquette. Dans le cas d’un doute de la source disponible, on doit communiquer avec le concessionaire ou la compagnie d’&ctriciM.

sur

Lorsqu’on desire utiliser l’ordinateur en Allemagne, on doit observer les normes s&uitaires qui suivent:

Afin d’assurer une protection adequate a l’ordinateur contre les court-circuits et le survoltage, l’installation de l’&difice doit comprendre un disjoncteur de 16 amp.

On doit brancher tout l’+ipement darts une sortie reli4e a la masse. Lorsqu’il est impossible d’inserer la fiche dans la prise,

on doit retenir les services d’un electricien ou remplacer la prise.

Ne jamais utiliser une prise sur le m&ne circuit qu’un appareil a photocopie ou un syst&me de contrble d’aeration avec

commutation marche-arr&.

10. S’assurer que le cordon d’alimentation de l’ordinateur n’est pas

effrs.

11. Dans le cas ou on utilise un cordon de rallonge avec l’ordinateur,

on doit s’assurer que la valeur totale d’amperes branches dans le cordon n’excede en aucun temps les amperes du cordon de rallonge. La quantit6 totale des appareils branches dam la prise murale ne doit jamais

exckkr 15

amperes.

12.Ne

13. Sauf tel que spkifie dans la notice d’utilisation, on ne doit jamais

14. Debrancher l’ordinateur de la prise murale et confier le service au

jamais ins&w un objet de quelque sorte que ce soit dans les

cavites de cet appareil.

tenter d’effectuer une reparation de I’ordinateur. On doit r&!rer le service de cet appareil a un technicien qualifie.

personnel de service qualifie selon les conditions qui suivent:

A. Lorsque le cordon d’alimentation ou la prise sont

endommagk

Lorsqu’un liquide s’est infib& dans l’ordinateur.

C. Lorsque I’ordinateur refuse de fonctionner normalement

meme en suivant les instructions. N’ajuster que les commandes qui sont ~num&!es clans les instructions de fonctionnement. Tout ajustement inad6quat de tout autre contr6le peut provoquer un dommage et souvent nkcessiter des rkparations &labor&s par un technicien qua&S afin de remettre l’appareil en service.

Lorsqu’on a

le boitier.

&hap@

l’ordinateur ou que l’on a endommage

Lorsque l’ordinateur demontre un changement note au niveau de sa performance.

Optional Equipment

Memory.. Drives

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

CPU Card OverDrive Module Math Coprocessor

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

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

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

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

Video Daughterboard

VGA UtiIities How to Use This Manual

Where to Get Help

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

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

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

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

2 2 3 3 3 3 4 4 5 6

Chapter

Turning On the Computer Turning Off the Computer Using Disks and Disk Drives

Using Your Computer

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

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

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

How Disks Store Data Types of Diskette Drives

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

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

Caring for Diskettes and Diskette Drives Write-protecting Diskettes Inserting and Removing Diskettes

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

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

Using a Single Diskette Drive System Formatting Diskettes Making Backup Copies Using a Hard Disk Drive

Special Keys on the Keyboard Stopping a

Command or Program

Resetting the Computer

Locking the Computer’s Cover

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

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

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

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

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

.........

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

1-2 1-4 1-5 1-6 1-7 1-10 1-12 1-14 1-16

1-17 1-17 1-18 1-20 1-21 1-22

1-23

vii

Using a Password

Changing a Password Deleting a Password

Using Your Computer as a Network Server

Using a Password in Network Server Mode

Changing the Processor Speed

Entering Keyboard Commands Using the ESPEED Program

Changing the Speaker Volume

Preparing the Hard Disk for Moving Using AUTOEXEC.BAT and Other Batch Files

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

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

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

...........

........

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

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

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

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

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

.........

Chapter 2 Accessing Internal Components

1-24 1-25 1-26 1-27 1-28 1-29 1-31 1-32

1-34 1-36 1-37

Special Precautions Removing the Cover Removing the Front Panel Removing the Subassembly Replacing the Subassembly

Replacing the Front Panel Replacing the Cover

Chapter 3

Main System Board Map Jumper Settings

Setting the Jumpers

Option Cards

Installing an Option Card

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

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

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

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

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

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

Installing and Removing Options

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

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

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

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

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

Removing an Option Card

Memory Modules (SIMMs)

Installing SIMMs Removing SIMMs

Replacing the CPU Card

Removing the CPU Card

Installing the CPU Card

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

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

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

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

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

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

2-2 2-3 2-5

2-7 2-9 2-11 2-12

3-3 3-4

3-5 3-6

3-8 3-10

3-11 3-14 3-16 3-17 3-18

3-19

Viii

Installing an OverDrive Module Installing a Math Coprocessor

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

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

Installing the Intel 487SX/25 Microprocessor Installing a Weitek 4167 Coprocessor

Replacing the Video Daughterboard Using the VGA Feature Connector

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

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

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

.......

3-22 3-24 3-26 3-27 3-29

3-34

Chapter 4

Choosing the Correct Drive Bay Installation/Removal Sequence Checking the IDE Hard Disk Drive Jumpers

Where to Go Next

Installing a Drive in the External Bay

Connecting the Cables

Removing a Drive From the External Bay

Installing a Hard Disk Drive in the Internal Bay

connecting the Cables Removing a Hard Disk Drive From the Internal Bay Post-installation Procedures

Chapter 5

Starting the Program

Deleting Tests. Adding Tests

Running Tests

Resuming From an Error System Diagnostic Tests Error Messages

Installing and Removing Drives

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

...........

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

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

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

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

.........

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

......

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

Running System Diagnostics

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

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

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

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

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

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4-2 4-3 4-4

4-5 4-6 4-9 4-14 4-16 4-20 4-25 4-27

5-2 5-3 5-4 5-5 5-6 5-7 5-8

Chapter 6

Formatting a Hard Disk

Starting the Program

Formatting a New Disk Reformatting a Used Disk Selecting an Option Selecting a Drive

Option 1, Format

Modifying the Defective Track Table Formatting the Disk

Option 2, Destructive Surface Analysis

Option 3,

Nondestructive Surface Analysis

Exiting the Program

Chapter 7

Troubleshooting

Identifying Your System Error Messages The Computer Won’t Start The Computer Does Not Respond

Restoring the Power Supply

Password Problems

Accessing Your System Keyboard Problems Monitor Problems Diskette Problems

Diskette Drive Problems Hard Disk Problems

Installing the Drive

Preparing the Drive

Accessing Data on the Drive

Software Problems Printer Problems Option Card Problems Mouse Problems Memory Module Problems

Math Coprocessor Problems

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

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

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

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

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

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

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...........

6-2 6-3 6-3 6-4 6-4 6-4 6-7

6-8

6-9 6-11 6-12

7-1 7-2 7-5

7-6

7-8

7-9

7-10

7-11

7-12

7-13

7-15 7-16

7-17

7-18

7-18 7-19 7-20

7-22 7-23 7-23

7-24

Appendix A Specifications

CPU and Memory Controllers Interfaces

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

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

Mass Storage Keyboard

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

Power Supply

Environmental Requirements

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

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

Physical Characteristics

Power Source Requirements System Memory Map Extended VGA modes Wingine Modes

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

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

Index

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

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

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

A-1 A-4 A-4 A-5 A-5 A-4 A-7 A-7

A-8 A-9 A-10 A-11

Introduction

Your new Epson® Progression™ computer is a very fast,

high-performance system offering flexibility and expandability

in a compact design. It provides the following features:

4MB of internal memory, expandable to 128MB System and video BIOS shadow RAM 8KB of internal cache VirtualCache™ -the Epson proprietary memory

architecture which allows the system to use all its system memory as a virtual cache pool

Integrated VGA (video graphics array) controller with Wingine™ video technology developed by Chips and Technologies® for Microsoft® Windows™ users

Built-in serial and parallel ports Built-in IBM® PS/2™ compatible keyboard and mouse ports Six 16-bit option slots Support for up to five mass storage drives: two internal and

three externally-accessible Upgradable CPU (central processing unit) card with sockets

for a math coprocessor and an Intel Upgradable video interface daughterboard Password security Lockable case.

OverDrive™ module

Introduction 1

Your computer’s video and memory features work together to make it extremely fast. The advanced system architecture allows the CPU to communicate directly with the Wingine video controller, providing direct throughput from the system memory to the display. Combined with the speed and graphics capabilities of the Wingine VGA controller, this technology produces screen refresh rates that are ten tunes faster than

standard super VGA systems and up to five tunes faster than systems that employ “local bus” technology.

Additionally, your computer can use all of its memory as a virtual cache pool. Unlike most systems that provide only a 64KB or 128KB cache buffer-which typically fills up with the

first or second memory access command-your computer uses

all the RAM as a “virtual” cache buffer. You’ll notice the

improved performance especially when running

memory-consuming graphics programs such as Windows

applications or draw programs.

Using the built-in interfaces, you can connect your peripheral

devices directly to the computer so you don’t have to install

option cards. You can use the option slots to enhance your

system with extra functions such as a modem card, network

card, or additional interface ports.

Optional Equipment

You can easily upgrade your computer by installing additional

memory and a wide variety of options, as described below.

Memory

By adding 1MB, 4MB, 16MB, or 64MB SIMMs (single inline memory modules) to the main system board, you can expand the computer’s memory up to 128MB.

2 Introduction

Your system can support up to five mass storage devices, such

as hard disk drives, diskette drives, a tape drive, or a CD-ROM drive. As your storage needs expand, you can install these drives to provide the necessary space for all your data.

Because the CPU card is replaceable, you can easily upgrade your system without having to purchase a new computer. The CPU card is available in three models: 486SX/25, 486DX/33, and 486DX2/66. In addition to the system speed and performance enhancements that come with a faster CPU, the Wingine VGA controller speeds up your video performance to match the capability of your CPU card.

OverDrive Module

You can also enhance your system-without replacing the CPU card-by installing an Intel OverDrive module on the CPU card. This doubles the internal clock speed of the microprocessor so your system runs much faster.

Math Coprocessor

You may want to install a math coprocessor to enhance the

speed and performance of mathematical calculations in certain application programs. Roth the 486DX/33 and the 486DX2/66 cards have a math coprocessor built into the CPU and also have a socket for an optional Weitek® math coprocessor chip. On the 486SX/25 card you can install an Intel 487SX/25 microprocessor chip, which has a built-in math coprocessor.

Introduction 3

Video Daughterboard

While the Wingine super VGA controller is soldered on the computer’s main system board, the video interface is supplied on a small, upgradable daughterboard which you can replace with an enhanced daughterboard. The standard board provides resolutions up to 1024 x 768 and the enhanced board supports resolutions up to 1280 x 1024, as well as “true color.” The 24-bit,

true color technology allows your compatible monitor to

display in millions of colors, instead of just 16 or 256.

Check with your authorized Epson dealer for information on

optional equipment. For installation instructions, see

Chapters 2,3, and 4 of this manual.

VGA Utilities

Your computer comes with special MS-DOS VGA device

drivers and utilities for use with the integrated VGA interface.

With these utilities, you can take advantage of extended VGA

features such as high resolutions and 132-column text mode

when you run popular application programs. The Wingine

controller works with the display drivers to provide sharp, clear resolutions of up to 1280 x 1024 for the Windows environment. See the instructions.

VGA Utilities Guide

for installation

4 Introduction

This manual contains the information you need to get the best results from your computer. You don’t have to read everything in this book; check the following summary.

Chapter 1 covers general operating procedures, such as turning

the computer on and off, using disks and disk drives, entering a password, and changing the processor speed.

Chapter 2 provides instructions for removing and replacing the computer’s cover, front panel, and subassembly so you can access components inside the computer.

Chapter 3 describes how to change jumper settings and install optional equipment such as option cards, memory modules, a CPU card, an OverDrive module, a math coprocessor, and a video daughter-board.

Chapter 4 explains how to install and remove disk drives. Chapter 5 provides instructions for running system diagnostics. Chapter 6 gives the procedure for formatting a hard disk. Chapter 7 contains troubleshooting tips. Appendix A lists the specifications of your computer.

At the end of this manual, you’ll find a glossary and an index.

Note

Please see the

Setup Guide

for instructions on setting up your

system and running the SETUP program.

Where to Get Help

If you purchased your computer in the United States, Epson America provides local customer support and service through a nationwide network of authorized Epson dealers and Service Centers. Epson also provides the following support services through the Epson Customer Support Center at (800) 922-8911:

Technical assistance with the installation, configuration, and operation of Epson products

Assistance in locating your nearest Authorized Epson Reseller or Service Center

Sales of ribbons, supplies, parts, documentation, and

accessories for your Epson product

Customer Relations

Epson technical information library fax service-also available directly by calling the toll number (310) 782-4214

Product literature with technical specifications on our current and new products

User group information.

If you purchased your computer outside the United States,

please contact your dealer or the marketing location nearest

you for customer support and service. International marketing

locations are listed on the inside back cover.

If you need help with any software application programs you are using, see the manuals that came with the programs for information about the technical support offered by the manufacturer.

introduction

Chapter 1

Using Your Computer

This chapter gives you a brief overview of some basic computer operations that you’ll use on a daily basis, such as how to turn your system on and off, use diskettes and disk drives, and reset the computer.

If you are familiar with these aspects of operating a computer,

you may want to skip the first few sections of this chapter. However, be sure to read the later sections which describe system operations specific to your computer, such as using a

password, changing the processor speed, and preparing the

hard disk for moving.

Using Your Computer

1-1

Turning On the Computer

Before turning on your computer, check the following safety rules to avoid accidentally damaging your computer or injuring yourself:

Do not connect or disconnect any power cables or peripheral device cables (including the mouse or keyboard) when the computer’s power is on.

Never turn on the computer with a protective card in a

5.25-inch diskette drive.

Never turn off or reset your computer while a disk drive light is on. This can destroy data stored on the disk.

Always wait at least 10 seconds after you turn off the power before you turn it on again. This prevents possible damage to the computer’s electrical circuitry.

Follow these steps to turn on your system:

Turn on the monitor, printer, and any other peripheral devices connected to the computer.

1-2

If you do not have a hard disk (or if you have not installed the operating system on the hard disk), insert your main operating system diskette in drive A.

Note

If you do not have a hard disk, you need to insert the operating system diskette each time you turn on your system so the computer can copy the operating system to its memory. See your operating system manual for more information.

Using Your Computer

To turn on the computer, press the power button located on the right side of the front panel, as shown below.

button

power indicator

hard disk

access light

The power indicator below the button lights up. After a few

seconds, the computer displays a count of its system memory, and then 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 screen display.)

Note

If you or your dealer has made a major change to your

system, such as adding a disk drive, you may need to wait a few minutes for your computer to complete power-on diagnostics the first time you turn it on.

When the system has successfully completed its diagnostics, you see the following prompt:

Press

<F2>

run

SETUP

Using Your Computer

1-3

Note

If your computer’s configuration does not match the information stored in the computer’s CMOS RAM (defined through the SETUP pro a prompt to press the

am), you see an error message and

key. Press

[F21

to run the

SETUP program to correct the information. (See Chapter 2 of

the

Setup Guide

for instructions.)

If you do not want to run SETUP, ignore the prompt. Your computer then loads the operating system from the hard disk or the diskette in drive A. (If the operating system has not been installed on the hard disk or is not on the diskette you inserted, the computer displays an error message. See your operating system manuals for installation instructions.)

What happens next depends on how your computer is set up. If it is configured to automatically load a program (such as Windows or a word processing program), you see the first menu or screen display of that program. If not, you may see the operating system prompt, such as

: \ B or

A>.

See your

application program manuals for further instructions.

Turning Off the Computer

Whenever you turn off your system, follow these steps:

Save your data and exit any program you are using.

Check the hard disk access light and the diskette drive light(s)

to make sure they are not on. (See the illustration on page

1-3 to locate these lights.) Do not turn off the computer if a

drive light is on, because you can damage the drive or lose data.

1-4

Using Your Computer

Remove any diskette(s) from the diskette drive(s).

4. Press the power button to turn off the computer and then turn off any peripheral devices (monitor, printer, etc.).

If you need to move your computer, always wait at least

seconds after turning it off before you move it. This allows your hard disk drive’s read/write heads to move away from the disk to a safe location. If you move your computer before this happens, you could damage your hard disk drives.

Using Disks and Disk Drives

The disk drives in your computer allow you to store data on disk, and then retrieve and use your stored data. This section explains how disks work and tells you how to:

Use different types of diskettes and diskette drives

Care for your diskettes and diskette drives

Write-protect diskettes

Insert and remove diskettes

Use a single diskette drive system

Format diskettes

Make backup copies

Use a hard disk drive.

Using Your Computer

1-5

How Disks Store Data

Diskettes are made of flexible plastic coated with magnetic material. This plastic is enclosed in a square jacket that is either slightly flexible (5.25-inch diskette) or hard (3.5-inch diskette).

Unlike a diskette, a hard disk is rigid and fixed in place. It is

sealed in a protective case to keep it free of dust and dirt. A hard disk stores data the same way that a diskette does, but it works much faster and has a much larger storage capacity.

All disks are divided into data storage compartments by sides, tracks, and sectors. Double-sided diskettes store data on both sides. On each side are concentric rings, called tracks, on which a disk can store data.

A disk is further divided by sectors, which can be visualized as

pie slices. The illustration below provides a simple

representation of tracks and sectors.

1-6

Using Your Computer

Double-sided, double-density diskettes have either 40 or 80 tracks on each side, and double-sided, high-density diskettes have 80 tracks on each side. Diskettes can have 8,9,15, or 18 sectors per track.

A hard disk consists of two or more platters stacked on top of one another and thus has four or more sides. In addition, a hard disk has many more tracks per side than a diskette, but the number of tracks depends on the capacity of the hard disk. The number of sectors depends on the type of hard disk.

Your computer uses the read/write heads in a disk drive to store and retrieve data on a disk. To write to a disk, the computer spins it to the position under the read/write head where the data is to be written. A diskette has an exposed area where the read/write head can access it.

Because data is stored magnetically, you can retrieve it, record over it, and erase it just as you play, record, and erase music on a cassette tape.

Types of Diskette Drives

The following list describes the four types of diskette drives

you can use in your computer and which diskettes to use with them:

l.44MB drive-use 3.5-inch, double-sided, high-density,

135 TPI (tracks per inch), l.44MB diskettes. These diskettes contain 80 tracks per side, 18 sectors per track, and hold up to 1.44MB of information (approximately 600 pages of text).

Note

MB stands for megabyte, which equals 1024KB (or 1,048,576 bytes). KB stands for kilobyte, which equals 1024 bytes. Each byte represents a single character, such as A, $, or 3.

Using Your Computer

1-7

1.2MB drive-Use 5.25-inch, double-sided, high-density, 96 TPI, 1.2MB diskettes. These diskettes contain 80 tracks per side, 15 sectors per track, and hold up to 1.2MB of information (approximately 500 pages of text).

720KB drive-Use 3.5-inch, double-sided, double-density, 135 TPI, 720KB diskettes. These diskettes contain 80 tracks per side, 9 sectors per track, and hold up to 720KB of information (approximately 300 pages of text).

360KB drive-use 5.25-inch, double-sided, double-density, 48 TPI, 360KB diskettes. (You can also use single-sided, 160KB or 180KB diskettes.) These diskettes contain 40 tracks per side and 8 or 9 sectors per track. With 8 sectors per track, a diskette holds up to 320KB. With 9 sectors per track, a diskette holds up to 360KB of information

(approximately 150 pages of text).

Note

You

must format a new diskette before you can store data on

it. See “Formatting Diskettes,” later in this section.

Drive and diskette incompatibilities

If your computer has more than one type of diskette drive, or if you use different types of diskettes, you need to be aware of certain incompatibilities between the drives and diskettes.

Because of the type and size differences, you cannot use a

3.5-inch diskette in a 5.25-inch drive or vice versa. There are also limitations on using diskettes that are the same size as the drive but have different capacities. The following tables

summarize the possibilities and limitations.

1-8

Using Your Computer

5.25-inch drive/diskette compatibility

Drive type Diskette types it can read from and write to

360KB

1.2MB 1.2MB, 36OKB,* 32OKB,* 18OKB,* 160KB*

* If you write to this diskette in a 1.2MB drive, you may not be able to read it

or write to it In a 360KB drive later.

3.5-inch drive/diskette compatibility

Drive type

720KB

1.44MB

360KB, 320KB, 180KB, 160KB

Diskette types it can read from and write to

720KB

1.44MB, 720KB

Because of possible incompatibilities, always indicate the diskette type and density when you label your diskettes.

(Usually this information appears on the manufacturer’s label.)

Note

If you want to format a 720KB diskette in a 1.44MB drive or format a 360KB diskette in a 1.2MB drive, make sure you include the correct parameter in your format command. See your operating system manuals for instructions.

If you have any combination of the above drives (1.44MB,

1.2MB, 720KB, or 360KB) and you are using MS-DOS, you can copy files from one drive to another-using COPY or XCOPY -as long as the correct diskette type is in each drive. You can also use these commands to copy files between a hard disk and any type of diskette. However, you cannot use the

MS-DOS DISKCOPY command to copy from one diskette drive to another if the two drives are not the same type. For more about copying files and diskettes, see your MS-DOS or other operating system manuals.

Using Your Computer

1-9

Caring for Diskettes and Diskette Drives

Follow these basic precautions to protect your diskettes and avoid losing data:

Remove all diskettes before you turn off the computer.

If you have a diskette that contains data you don’t want to accidentally write over or erase, be sure you write-protect it. This is especially important for your operating system and application program diskettes. See ‘Writeprotecting Diskettes,” below, for more details.

Do not remove a diskette from the diskette drive or reset or turn off the computer while the drive light is on. This light indicates that the computer is copying data to or from a diskette. If you interrupt this process, you can destroy data.

Keep diskettes in a moderate environment.

Don’t leave them sitting in the sun or in

extreme cold or heat because this can destroy

the data.

1-10

Keep diskettes away from dust and dirt. Small particles of dust or dirt can scratch the magnetic surface, destroy data, and ruin the read/write heads in a diskette drive.

Keep diskettes away from magnetic fields, such as those generated by electrical appliances, telephones, and loudspeakers. (Diskettes store information magnetically.)

Using Your Computer

Do not place diskettes on top of your monitor or near an external hard disk drive.

Always hold a 5.25-inch diskette by its protective jacket and never touch the magnetic surface (exposed by the read/write slot). The oils on your fingertips can damage it.

Never wipe, brush, or try to clean diskettes in any way.

Write on a diskette label before you attach it to the diskette. If you need to write on a label that is already on the diskette, use only a soft-tip

pen-not a ballpoint pen or a pencil.

Carefully label your diskettes and indicate the type and

density. Do not stick several labels on top of one another; this can make it difficult to insert and remove the diskette in the drive.

Store diskettes in their protective envelopes and

in a proper location, such as a diskette container.

Do not store diskettes flat or stack them on top of each other.

Do not place anything on top of your diskettes, and be sure they do not get bent.

Using Your Computer

1-11

Write-protecting Diskettes

You can write-protect a diskette to prevent its data from being altered. When a diskette is write-protected, you can read it and copy data from it, but you cannot store new data on it or delete any files it contains.

To write-protect a 5.25-inch diskette, cover the small, rectangular notch (shown below) with an adhesive write-protect tab. Write-protect tabs usually are included in a new package of blank 5.25-inch diskettes.

To remove the write protection, peel off the write-protect tab.

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Using Your Computer

On a 3.5-inch diskette, the write-protect device is a small switch

on the back of the diskette in the lower right comer, shown

below. To write-protect a 3.5-inch diskette, slide the switch

toward the edge of the diskette until it clicks into position, exposing a hole in the comer.

switch

To remove the write protection, slide the switch toward the center of the diskette until it clicks into position and the hole is covered.

or switch so they are

Using Your Computer

1-13

Inserting and Removing Diskettes

If you have a 5.25-inch diskette drive, insert a diskette as follows: hold the diskette with the label facing up and the read/write slot leading into the drive, as shown below.

latch

Slide the diskette all the way into the slot. Then turn the latch down to lock it in a vertical position. This keeps the diskette in place and enables the read/write heads in the drive to access the diskette.

When you want to remove a diskette, first make sure the disk drive light is off. Then flip up the latch and carefully pull out the diskette. Place it in its protective envelope and store it in a

proper location, such as a diskette container.

1-14

Using Your Computer

If you have a 3.5-inch diskette drive, insert the diskette with the label facing up and the metal shutter leading into the drive, as

shown below. Slide the diskette into the drive until it clicks into

place.

release button

metal shutter

When you want to remove the diskette, make sure the drive light is off; then press the release button. When the diskette pops out, remove it and store it properly.

Never remove a diskette, or reset or turn off the computer

on. You could lose data. Also,

remove all diskettes before you turn off the computer.

Using Your Computer

1-15

Using a Single Diskette Drive System

Most operating systems expect the computer to have at least two diskette drives and display prompts and messages accordingly. MS-DOS, for example, recognizes the first diskette drive (the top drive) as drive A and a second diskette drive as drive B. If you have only one diskette drive, MS-DOS can treat it as both A and B when you need to perform operations that normally would use two diskette drives.

For example, if you enter a command to copy data from A to B, MS-DOS copies the data from the first diskette you place in the drive (which would be drive A) to the computer’s memory. Then MS-DOS prompts you to insert another diskette (for drive B) and copies the data from memory to the new diskette. When copying is complete, you see a prompt to insert the original diskette (A).

Because you may often swap diskettes this way, it is important to remember which diskette is which. It is also a good idea to write-protect your original diskette. (See ‘Write-protecting Diskettes,” above.)

If you have a hard disk and one diskette drive, you can load the operating system and application programs from the hard disk, create and store your data there, and use the diskette drive just for copying data to or from diskettes.

However, if you have only one diskette drive and no hard disk, you need to use that drive to load the operating system as well as any application program you are using. First, insert the operating system diskette (the MS-DOS Startup diskette, for example) in drive A and load the operating system; this copies it to the computer’s memory (RAM) so you do not need to leave the system diskette in the drive. Then remove the system diskette and insert your application program diskette to load that data into memory, too. See your application program manual for detailed instructions.

1-16

Using Your Computer

Formatting Diskettes

Before you can store data on a new diskette, you must format it. Formatting prepares the diskette so that the operating system can write data on it. You need to do this only once, before you use the diskette for the first time.

You can also reformat previously used diskettes to store new data. This process erases all the data on the diskette, so be sure you do not want to save any of the files on a used diskette before you format it. See your operating system manuals for instructions on formatting diskettes.

Making Backup Copies

It is important to make copies of all your data and system diskettes. Make backup (or working) copies of all diskettes that contain programs, such as your operating system, Reference,

and Utility diskettes; then use only the copies. Store the original

diskettes away from your working diskettes. Also, copy your data diskettes regularly, whenever you revise them, and store

them away from your originals.

If you have a hard disk, you’ll probably use it to store the programs and data files you use regularly. Keep backup copies

of all your files on diskettes or tapes (if you have a tape backup drive).

Using Your Computer

1-17

Using a Hard Disk Drive

Using a hard disk is similar to using a diskette. However, the hard disk provides several advantages:

A 240MB hard disk can store as much data as

approximately 198 1.2MB diskettes or 165 1.44MB diskettes.

Your computer can perform all disk-related operations faster.

You can store frequently used programs and data files on

the hard disk, eliminating the inconvenience of swapping

diskettes to access different files.

The added storage capacity makes it easy to move back and

forth between different programs and data files. However,

because it is so easy to add programs and files to your hard disk, you may find yourself trying to organize hundreds of files.

Most operating systems let you keep related files together in directories and subdirectories so they are easy to find and use. See your operating system manuals for instructions on managing your files and directories.

1-18

Note

A hard disk must be partitioned and formatted before you can use it. Be sure you have performed the procedures described in your operating system manuals to prepare your hard disk for use.

Using Your Computer

Backing up the hard disk

While the hard disk is very reliable, it is essential to back up your hard disk files to diskettes or tapes in case you lose some data accidentally. Make copies of all your system and application program diskettes before copying the programs to the hard disk. After you create data files on the hard disk, be sure to back them up whenever you revise them to keep your

backup diskettes or tapes up-to-date.

caring for your hard disk

Follow these precautions to protect your hard disk drive from damage and to avoid losing data:

Never turn off or reset the computer when the hard disk access light is on. This light indicates that the computer is copying data to or from the hard disk. If you interrupt this process, you can lose data. (See the illustration on page 1-3 to locate the hard disk access light.)

Never attempt to open the hard disk drive. The disk itself is enclosed in a sealed container to protect it from dust.

If you need to move your computer, you may need to run

the HDSIT program to prepare the hard disk for moving, as

described on page 1-36.

Using Your Computer

1-19

Special Keys on the Keyboard

Certain keys on your keyboard serve special functions when your computer is running your operating system or application programs, as described in the table below.

Special key functions

Moves the cursor one tab to the right In normal mode and one tab to the left in Shift mode.

Changes the letter keys from lower- to uppercase; changes back to lowercase when pressed again.

The numeric/symbol keys on the top row of the

keyboard and the symbol keys in the main part of

the keyboard are not affected.

Ishml

Produces uppercase characters or the top symbols on the keys when used with the main character keys. Produces lowercase characters when the Caps Lock function is on.

Works with other keys to perform special (control) functions.

Works with other keys to enter alternate character codes or functions.

Moves the cursor back one space, deleting the character to the left of the cursor.

Ends a line of keyboard input or executes a command.

Turns the insert function on and off. Deletes the character marked by the cursor.

I I

Cancels the current command line or operation.

1-20

Using Your Computer

Special key functions (continued)

hrpo=

Changes the function of the numeric/cursor keys from entering numbers to positioning the cursor.

=-l-[F1zl

lserdllpal Ipwrrl

The

[$GLiC), [lunlodr],

Perform special functions within application programs.

Prints the screen display on a printer. Generates the System Request function in some

application programs (used with Controls scrolling in some applications.

Suspends the current operation. Stops the current operation (used with

and

[*a]

keys work as toggles; press

I)],.

[CM]).

the key once to turn on a function and again to turn it off. When the function is enabled, the corresponding light in the upper

right comer of the keyboard is lit.

Stopping a Command or Program

You may sometimes need to stop a command or program while it is running. If you have entered an MS-DOS or application

program command that you want to stop, try one of the following:

Hold down

[ctrll

and press

and

press

[cl

If these methods do not work, you may need to reset the computer as described below. Do not turn off the computer to exit a program or stop a command unless you have to, because the computer erases any data you did not save.

Using Your Computer

1-21

Resetting the Computer

Occasionally, you may want to clear the computer’s current settings or its memory without turning it off. You can do this by resetting the computer.

For example, if an error occurs and the computer does not respond to your keyboard entries, you can reset it to reload your operating system and try again. However, resetting erases any data in memory that you have not saved; so reset only if

necessary.

Caution

Do not reset the computer as a means to exit a program.

Some programs classify and store new data when you exit

them in the normal

without properly exiting a program, you may lose data.

To reset the computer, the operating system must be either on the hard disk or on a diskette in drive A; so if you do not have a hard disk, insert a system diskette in drive A.

There are two ways to reset the computer:

manner.

If you reset the computer

1-22

If you are using MS-DOS, hold down m and press

The screen goes blank for a moment and then

the computer should reload your operating system.

Press the RESET button on the front panel (shown in the

(Alto

following illustration); this method works even when the computer does not respond to your keyboard entries.

Using Your Computer

and

RESET button

If resetting the computer does not correct the problem, you probably need to turn it off and on again to reboot it. Remove any diskette(s) from the diskette drive(s). Turn off the computer and wait 10 seconds. If you do not have a hard disk, insert a system diskette in drive A. Then turn on the computer.

locking the Computer’s Cover

You can lock the cover onto the computer to prevent

unauthorized users from accessing its internal components.

To lock the cover, insert the key as shown on the left and turn it clockwise. To unlock the cover, insert the key as shown on the right and turn it counterclockwise.

Using

Your

Computer

1-23

Using a Password

If you set a password when you ran the SETUP program, you must enter it every time you turn on or reset the computer. Follow these steps to use your password:

If you do not have a hard disk, insert your system diskette in drive A.

Turn on or reset the computer. You see a number and the key prompt:

Type your password. The key turns when you type a character, but the screen does not display the characters you type. Then press

You have three chances to enter the correct password. The number that appears before the key prompt indicates how many tries you have left. After the third incorrect try, the screen displays a zero, the keyboard locks up, and you cannot use the

computer. Press the RESET button and try to enter the correct password again.

Note

If you do not know the correct password, see “Password Problems” in Chapter 7.

After you type the password correctly and press I, a happy face character appears. Then the computer loads the operating system and displays the command prompt.

1-24

Using Your Computer

Note

If you turned on network server mode when you ran the SETUP program, you need to use a different procedure to enter your password. See “Using Your Computer as a

Network Server” on page 1-27.

Changing

To change your password, follow these steps:

Password

If you do not have a hard disk, insert your system diskette

in drive A. Turn on or reset the computer. At the key prompt, enter

your current password followed by a forward slash (/) and the new one you want to use. For example, if your current

password is 123 and you want to change it to ABC, type:

123/ABC

The screen does not display what you type. Do not use characters requiring the m key, such as %, @,

or #, in your new password. The computer does not distinguish between characters that are produced with the

key and those that are not.

Press

A happy face character appears and then the

computer loads the operating system.

Using Your Computer

1-25

Note

You can also change your password using the SETUP program. See Chapter 2 of the Setup Guide for instructions.

Deleting a Password

To delete your password, follow these steps:

If you do not have a hard disk, insert your system diskette in drive A.

Turn on or reset the computer. At the key prompt, enter

your current password followed by a forward slash. For

example, if your password is 123, type:

123/

Press

A happy face character appears and then the

computer loads the operating system.

The next time you turn on or reset the computer, it does not request a password and loads the operating system immediately.

Note

You can also delete your password using the SETUP program. See Chapter 2 of the

Setup Guide

for instructions. If you do not know the password, see “Password Problems” in Chapter 7.

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Using Your Computer

Using Your Computer as a Network Server

A network server is the master computer in a network and provides storage space for the other computers connected to it. It can also write files to and read files from the other computers, making it the most powerful computer in the network.

Even if no one is typing keyboard, the server can process commands sent to it from other computers. If you use your computer as the network server, you may want to prevent unauthorized users from entering commands at the keyboard. To provide this security, you can enable a password in network server mode using the SETUP program.

If you set a password but did not turn on network server mode,

you enter the password before the computer loads the operating system or the network software. Once you load it, anyone can access your system by typing commands on the keyboard.

However, if you set a password and turn on network server mode, you can load your operating system or network software before you enter the password. This allows other computers in

the network to access the system, but prevents unauthorized

users from entering commands at your keyboard and using any

network server access privileges. When you boot the computer in network server mode, you do

not see the key prompt mode was turned off. The password prompt is hidden to

prevent unauthorized users from knowing that a password is

required.

commands

(h),

as you would if network server

at the network server

Using Your Computer

1-27

You do not have to set a password in network server mode to

use your computer as a network server, but it is helpful. See “Setting the Password Options” in Chapter 2 of the

Setup Guide

enabling network server mode. Then read the next section to use your network password.

for instructions on setting the password and

Using a Password in Network Server Mode

When you turn on or reset the computer, it loads your

operating system or network software from your hard disk

and you see either the command prompt or the first screen

displayed by your network software.

Note

If you boot your computer from a diskette in drive A, however, you see the password key prompt before the computer loads your operating system or network software. Follow the instructions in “Using a Password” on page 1-24 to enter your password in this situation.

Follow these steps to enter your password:

Turn on or reset your computer. You do not see the key prompt you to enter the correct password.

Type your password and press display what you type.

Now you should be able to use your computer. Press a key such as If you entered an incorrect password, the computer does not

respond. Type the correct password, press

the computer again.

1-28

Using Your Computer

(h)

even though the computer is now waiting for

[burl.

The screen does not

to see if the keyboard accepts your command.

En*r

, and try using

c!3

Changing the Processor Speed

Your computer’s processor can operate at two speeds: high or low. High speed is the highest speed at which your microprocessor is capable of running, such as 33 MHz. Low speed simulates an 8 MHz processor to provide compatibility with older application programs.

You can also set the computer to automatic speed which switches your computer’s processor from high to low speed when it accesses a diskette drive.

Note

When your computer is operating at high speed, the TURBO light on the front panel is lit. It is off when the computer is operating at low speed.

You should use high speed for almost everything you do because your programs will work faster. However, certain application programs have specific timing requirements and can run only at the slower speed. See your software manual to determine if this is the case.

Using Your Computer

1-29

Some copy-protected programs require the computer to run at low speed while accessing the program on a diskette. These programs also usually require you to leave a

key

disk-the diskette that contains the copy protection-in the diskette drive. If you use a copy-protected program often, you may want to set your processor speed to change automatically to low speed when accessing the diskette and return to high speed when it is finished.

Depending on the type of copy-protected program you have, you may or may not want to set the processor to automatic

speed. Follow these guidelines:

If you are using a copy-protected program that can run only on a diskette or that requires a key disk, try to load the program at high speed. If this works, you do not need to set the speed to change automatically. If you can’t load the program on high, set the speed to change automatically.

If you are using a copy-protected program that does not require a key disk but requires a special procedure to install it on a hard disk, set the speed to low while you are installing the program. Then set the speed to high while you load and run the program.

If this does not work, try installing and loading the program at low speed and then change to high speed to run

it. Do not set the speed to change automatically. There are three ways to change the processor speed:

Run the SETUP program

Enter a keyboard command

Run the ESPEED program.

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Using Your Computer

If you frequently use programs that require low or automatic speed, use SETUP to change the processor speed. Your new setting remains in effect until you change it again using SETUP. See Chapter 2 of the

Setup Guide

for instructions.

If you use these programs only occasionally, you should use the keyboard commands or the ESPEED program (described

below) to change the processor speed. These methods

temporarily override the SETUP processor speed setting.

Entering Keyboard Commands

You can change the processor speed temporarily by entering a command from your keyboard. You can use these commands only if you have enabled the Software speed change option in the SETUP program. option is disabled, you cannot use the keyboard commands. The keyboard speed setting commands are listed in the table below.

Speed setting commands

(Enabled

is the default setting.) If this

Numeric

GiElIAnl[-1

To enter these commands, hold down the

keypad commands

Automatic (high speed: low speed only during diskette access)

Low (simulated 8 MHz)

[cbll

key simultaneously and then press the

&l,i5-

key on the numeric keypad.

Using Your Computer

key and the

, or

1-31

Note

You can use the commands listed above while you are running a program. However, if the program uses one of

these commands for another function, you cannot use it to change the processor speed. For example, if you are running a program that uses the the cursor, you cannot enter

[cbll[m

command to move

[mJIm1[-1

to change the processor speed to low. Another alternative is to use the ESPEED program, described below.

The speed setting remains in effect until you do the following:

Press

[cbl) (Alt) 66)

Turn off the computer

Change it using the SETUP program

Change it with another keyboard command

Change it using ESPEED.

or the RESET button

Using the ESPEED Program

ESPEED provides an easy way to change the processor speed if

your application program does not recognize the

commands or

if you want

to include the program command in

[cbll

key

a batch file. The ESPEED program is on the Reference diskette. If you

have a hard disk drive, copy the file ESPEED,EXE from your Reference diskette

onto

your hard disk and run the program

from there. If you do not have a hard disk, insert your

Reference diskette in drive A and log onto drive A before you

enter the command to start the program.

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Using Your Computer

To run SPEED,

e the

following at the MS-DOS command

prompt and

ESPEED

You see the following messages:

Usage: ESPEED[/H] [/L]

/High

/LOW

/Auto

Set

High speed (no Auto)

Set

Low speed (no Auto)

set Auto speed

[/A]

These messages tell you the switches you should use to set the

speed to high, low, or automatic. At the MS-DOS prompt, type the ESPEED command

again and include the appropriate

switch, such as the following:

ESPEED

(This command sets

the

processor speed to change to low speed

automatically when the computer accesses a diskette.) If you include the switch when you type the initial ESPEED

command, the program changes the speed without displaying the command options.

The processor speed you set remains in effect until you change it again or until

[ut) [A]

you turn off the computer or reset it with

or the

RESET

button.

Using Your Computer

1-33

Entering

the ESPEED

You may want to run the ESPEED program by including the command in a batch file. For example, let’s say you have a program called SLOWDOWN which requires a slower processor speed. You could include the following commands in a batch file to start the SLOWDOWN program:

command in a

butch file

ESPEED SLOwDO?IN

You could name the batch file SLOW.BAT. Whenever you need to run the SLOWDOWN program, type The computer changes the processor speed to automatic and starts the program.

SLOW

and press

[En(wl.

Changing the Speaker Volume

Your computer contains a built-in speaker that beeps when you perform certain operations. You can control the operation and volume of this speaker using the SETUP program and the SETVOL utility, described below.

To enable or disable your speaker, run the SETUP program and change the setting of the Chapter 2 of the

Speaker option is Enabled.)

If your speaker is enabled, you can run the SETVOL utility to adjust the volume of the speaker as desired. The file SETVOL.EXE is on the Reference diskette. You may want to copy it to your hard disk for convenience.

Setup Guide.

Speaker

option, as described in

(The default setting of the

1-34

Using Your Computer

Follow these steps to run SETVOL:

If you copied SETVOL.EXE to your hard disk, log onto the

directory where it is stored.

If you did not copy the file, insert the Reference diskette in

drive A and log onto that drive.

At the command prompt, type the following and press

SEWOL

[En*rl:

3. You see the volume selection menu. The VOLUME box at the top of the screen shows the percentage of volume currently set for your speaker, such as 50%. The solid bar in the middle of the screen graphically displays the volume setting as you increase or decrease it.

To decrease the volume, press increase the volume, press

[tl, l-T-1,

[-t,[7],

[-1.

r;7.

(You can

use the keys on the main keyboard or the numeric keypad.) As you change the volume, the speaker beeps so you can test

the volume of the current setting.

After you have selected the volume you want, press

[Enl#l

to store the current setting and exit SETVOL. You see a message confirming the volume setting you selected.

If you want to exit the program without saving the new setting, press [ You see the operating system command prompt.

The speaker volume you set remains in effect until you change it again.

Using Your Computer

1-35

Another way to run SETVOL is to enter the command with a parameter at the command line. The following table lists the parameters available.

SETVOL parameters

Parameter

lnnn

Just type

SETVOL

Function

Displays help information describing the SETVOL command and options

Specifies a numeric percentage (from 0% to 100%) for the volume

Displays the numeric percentage of the current volume

setting

followed by the parameter. For example, to

set the speaker to 50% of the maximum volume, type the

following and press

SEWOL /50

Be sure to include the slash (/) in the parameter.

Preparing the Hard Disk for Moving

If you need to move your computer to a new location, you may want to run the HDSIT program provided on your Reference diskette to protect the hard disk during the move.

HDSIT moves (or parks) the disk drive’s read/write heads to a region on the disk surface that does not contain data, and locks them securely in position. This protects the hard disk from being damaged if the computer is bumped accidentally.

Many hard disk drives, including all Epson drives,

automatically park their heads when you turn off the computer.

If your hard disk drive does not do this, or if you are not sure that it does, be sure to run HDSIT.

1-36

Using Your

Computer

If you have not already done so, copy the HDSIT.COM and HDSIT.VER files from the Reference diskette to your hard disk. Then, when you want to run HDSIT, log onto the directory

where these

files are stored.

Type

HDSIT

and press (br*rl.

You see a message on the screen that tells you the disk drive’s read/write heads will remain

locked until you reset the

computer or turn the power off and on again. The computer

then locks the heads and disables the keyboard. Remove any

diskettes and turn off the computer. Now you can move it to

the new location.

Caution

Whether you use HDSIT or not, always turn off your computer and wait at least 20 seconds before you move it. This allows your hard disk drive’s read/write heads to move away from the disk to a safe location. If you move your computer before this happens, you could damage your hard disk drives.

Using AUTOEXEC.BAT and Other Batch Files

If you are using MS-DOS to access your application programs, you may find that there are commands you need to run frequently. You can automate the execution of these commands by listing them in a special file called a batch file. When you

type the name of the batch file and press m, MS-DOS executes the commands in the file just as if you had typed each command from the keyboard.

If you have a word processing program that can save a file as a text only file (sometimes called an ASCII file), you can use it to create a batch file. You can also use the MS-DOS COPY, EDIT, or EDLIN command, or a text editor, to create the file.

Using Your Computer

1-37

One batch file that you may find particularly useful is called AUTOEXEC.BAT. Every time you turn on your computer, MS-DOS looks for the AUTOEXEC.BAT file and automatically executes each of the commands in the file.

When you install MS-DOS, it creates an AUTOEXEC.BAT file for you, which you can modify or replace as described above. Be sure to name the file AUTOEXEC.BAT and store it in the

root directory of the hard disk or diskette from which you load MS-DOS (You may want to rename your original file to AUTOEXEC.OLD, in case you need to use it again later.)

See your MS-DOS manuals for more information about creating and using batch files.

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Using Your Computer

Chapter 2

Accessing Internal Components

To access your computer’s internal components, you need to remove the cover. In some cases, you may also need to remove the front panel and the subassembly (the metal case that holds the drive bays). The instructions in this chapter explain how to do the following:

Remove and replace the cover

Remove and replace the front panel

Remove and replace the subassembly.

Read the safety precautions on the next page before you begin.

Accessing Internal Components

2-1

Special Precautions

As you perform the procedures described in this chapter and in Chapters 3 and 4, observe the following precautions to avoid damaging your equipment or injuring yourself:

Do not attempt a procedure if you have any reservations about performing it; ask your dealer for assistance.

Always turn off

the

computer, disconnect all cables, and wait at least 30 seconds before you remove the cover. First disconnect the power cord from the electrical outlet and from the computer’s back panel. Then disconnect all peripheral devices from the computer.

Every time you remove the cover, ground yourself by touching

the

metal inside of the computer’s back panel before you touch any components inside. If you are not properly grounded, you could conduct static electricity and damage your equipment.

When disconnecting a cable from

any

internal device (such as a disk drive), avoid pulling on the cable; grasp the plastic connector to remove it from the socket.

When plugging a connector or a component into a socket, be sure to position it correctly. Carefully align any connector pins with

the corresponding

holes in the socket before you push in the connector. Otherwise, you can

severely damage

the

equipment.

If you install an option, keep its original packaging in case you need to remove or transport it later.

2-2

Always replace

the

computer’s cover before you turn on the

power, or the computer may

Accessing Internal Components

overheat.

Removing the Cover

Remove the computer’s cover to do any of the following:

Change jumper settings

Install or remove option cards

Install or remove single inline memory modules (SIMMs)

Install or remove a CPU card

Install or remove a math coprocessor

Install or remove an OverDrive module

Install or remove the video daughterboard

Install or remove disk drives or other storage devices.

Follow these steps to remove the cover:

Turn off the computer and any peripheral devices connected to it. Then disconnect the computer’s power cord from the electrical outlet and from the back panel. Also disconnect any peripheral device cables that are connected to the computer, including the keyboard cable.

Turn the computer around so you are facing the back panel.

If necessary, unlock the computer’s cover. (See Chapter 1 for instructions.)

Accessing Internal Components

2-3

Loosen the three thumbscrews on the computer’s back panel by turning them counterclockwise, as shown below. (The

screws disengage but don’t come all the way off.)

5. Grasp the sides of the cover (toward the front of the computer) and pull it firmly toward you, as shown below. Then lift it up and off the computer.

2-4

Accessing Internal Components

Removing the Front Panel

You must remove the computer’s front panel if you need to install or remove a disk drive in an external drive bay or if you

need to remove the subassembly from the computer. (If you are installing an internal option, you do not need to remove the front panel.)

Follow these steps:

Turn the computer so you are facing the front panel.

2. Release the six tabs securing the front panel to the computer

case, as shown below. You may want to use a flat-blade screwdriver to release the tabs.

Accessing internal Components

2-5

Once the tabs are free, grasp the sides of the front panel

3. and pull it

straight

toward you to disengage the two tabs at the bottom, as shown below. Be careful not to pull the panel off at an angle; this may bend or pop off the power and

RESET

buttons. If a button pops off, carefully place it back

on to its post.

2-6

Accessing Internal Components

Removing the Subassembly

You need to remove the subassembly only if you are installing or removing a hard disk drive that is mounted next to the power supply. (See the installation instructions in Chapter 4 if

you are not sure if you need to remove the subassembly.) Follow these steps:

Turn the computer so you are facing the front panel.

Disconnect the power supply and drive cables from the backs of all the drives installed in your computer, as shown below. Note which cables are connected to which drives so you can easily reconnect them later.

power supply

drive cable

Accessing Internal Components

2-7

Open the clasps holding the power supply and drive cables to

the side of the subassembly, as shown below. Then remove all the cables from the clasps. (Do not disconnect any cables from the main system board.)

Grasp the back of the subassembly by the edge on its upper

4. left side, as shown below, and lift up the back end.

2-8

Accessing Internal Components

5. Pull the subassembly forward slightly to release it from the two pins beneath the front panel opening. Then lift it out of the computer and place it on your work surface.

Replacing the Subassembly

Follow these steps to replace the subassembly:

Turn the computer so you are facing the front panel.

2. Hold the subassembly at a slight angle and guide the front of it down through the opening in the front of the computer, as shown below.

3. Fit the two holes in the lower front of the subassembly over the two posts on the front of the computer case, as shown above.

Accessing Internal Components

2-9

Lower the back end of the subassembly into the computer.

4. If necessary, fit the post beneath the back right edge of the

subassembly into the hole on the top of the power supply.

Then lower the subassembly all the way down.

Gather the power supply and drive cables in the clasps on

5. the side of the subassembly; then shut the clasps.

2-10

Accessing Internal Components

Now you need to connect the drive and power supply cables to the backs of all your drives. See “Connecting the Cables” on page 4-9 for instructions. (If you also need to connect the diskette and/or hard disk drive cables to the main system board, follow steps 4 through 6 on pages 4-21 through 4-23.)

Replacing the Front Panel

Follow these steps to replace the computer’s front panel:

Turn the computer so you are facing the front.

Align the openings in the front panel with the power and

RESET

front of the computer case. Also align the front panel tabs with the corresponding notches in the case. Then guide the front panel straight onto the case, as shown below.

buttons, and any drives that extend out from the

3. Press the front panel onto the computer to fully insert all the tabs into the notches. If all the front panel tabs do not click into position, remove the front panel and try again.

Accessing Internal Components

2-11

Rep/acing the Cover

Follow these steps to replace the computer’s cover:

Turn the computer so you are facing the back panel.

1. Hold the cover at a slight angle, as shown below, and lower

2. the front part onto the computer. Then lower the back of the cover.

2-12

Slide the cover forward until the front edge overlaps the top

3. edge of the front panel.

Tighten the three thumbscrews on the back panel to secure

4. the cover to the computer.

Lock the cover onto the computer, if desired. (See Chapter 1

5. for instructions.)

Reconnect your monitor, printer, keyboard, and any other

6. peripheral devices you have. Then reconnect the power cord to the back of the computer and to an electrical outlet.

Accessing Internal Components

Chapter 3

Installing and Removing Options

You can enhance the performance of your computer by adding a variety of options or upgrading your system components, including the following:

Option cards

Memory modules

Upgraded CPU card

Intel OverDrive module

Math coprocessor

Enhanced video daughterboard.

Installing and Removing Options

3-1

This chapter provides instructions for installing the options listed above, and for changing the jumper settings inside the computer. Be sure to check the jumper information if you install or remove any options in your computer.

On the next page, you’ll find an illustration of your main

system board which shows the location of any components you

may need to locate.

All the instructions in this chapter assume you have removed the computer’s cover; if not, see Chapter 2 for the procedure. When you finish everything you need to do inside the computer, return to Chapter 2 for instructions on replacing the cover.

3-2

installing and Removing Options

Main System Board Map

As you follow the instructions in this chapter and in Chapter 4, use the illustration below to locate the necessary components on your main system board.

CPU cardconnector

option slots

SIMM sockets

larallel

hard disk drive connector

VGA monitor

port

blskette dr,ve

connector

keyboard port

serial

Pop

VGA feature connector

mouse port

VI&O

daughterboard connectors

power

SUPPlY

connectors

JP3

.IPA

Installing and Removing Options

3-3

Jumper Settings

A jumper is a small electrical connector that controls one of the computer’s functions. The jumper settings in your computer are preset at the factory; however, you can control certain features by changing the standard settings as follows:

Enable or disable the built-in mouse port

Enable or disable an external mouse port

Set your monitor type to monochrome or color

Enable or disable the power-on password function

Enable or disable the built-in VGA display adapter.

If you need to change any jumper settings, or if you want to check the current settings, follow the instructions in this section. Refer to the “Main System Board Map” on page 3-3 to locate the jumpers.

The following table lists the main system board jumper settings and their functions.

3-4

Installing and Removing Options

Main system board jumper settings

number

JP4

JP5

JP6

JP7

* Factory setting

Jumper

A* B

B* A*

B A

B* A*

Function

Enables the built-in mouse port Disables the built-in mouse port so you can use an external mouse port on an option card

Enables an external mouse port on an option card

Disables an external mouse port Color monitor is installed

Monochrome monitor is Installed Disables the password function

Enables the password function Enables the built-in VGA display adapter

Disables the built-in VGA display adapter so you can use a display adapter on an option card

Setting the Jumpers

If you need to change board, follow these steps:

Refer to the table above to identify you need to change. See the “Main System Board Map” on page 3-3 to locate

any

jumper settings on the main system

which

jumper setting(s)

the

jumpers.

A jumper’s placed on the pins. The jumper

setting

is determined by where the jumper is

connects

either pin A and

the middle pin (position A) or pin B and the middle pin

(position B), as shown below.

position A

Installing and Removing Options

position B

3-5

To move a jumper from one position to the other, use needle-nose pliers or tweezers to pull it off its pins and move it to the desired position. Take care not to lose the

jumper.

Caution

Be careful not to bend the jumper pins or damage any surrounding components on the main system board.

Option Cards

An option card is a circuit board you install in your computer to add a particular device, such as a modem, or provide an interface, such as a

serial port.

function.

Most option cards

contain a

Your computer has six 16-bit option slots,

accommodate

option card. You

can

each

which

can

buy option cards from

authorized Epson dealers as well as other vendors. Before you install an option card, check the power

requirements given in the card’s documentation. Make sure that the power required by the card does not exceed the power limit for its slot, and that the total power for all the cards does not exceed the power limits for all six slots. The table below lists the power limits.

Option slot power limits

3-6

Maximum current

For each slot For all six slots

+5 volts +12 volts

7 Amps

16 Amps 3 Amps 0.5 Amps

1.5 Amps 0.5 Amps

Installing and Removing Options

-5 Volts and -12 Volts

Although the computer’s power supply is protected against excessive power loads, you could still damage the main system board if you install an option card that draws more power than the limits shown in the table.

This section explains how to install option cards in your

computer. If you need to remove an option card later, see “Removing an Option Card” on page 3-10 for instructions.

The illustration of the main system board on page 3-3 shows the six standard option slots inside your computer. You can install either 8-bit or 16-bit option cards in these slots. As you can see below, a 16-bit card has an extra connector along the bottom.

8-bit card

Usually it does not matter which slot an option card occupies,

as long as it fits in the slot. However, you must follow these

guidelines when deciding which slot to use:

You cannot install an 8-bit card that has an additional tab

along the bottom.

Some option cards must be installed in a specific slot. Consult the instructions that come with the card to see if this is the case.

If you install a disk drive that uses a controller card, place the card as close as possible to the drive it is controlling.

Installing and Removing Options

3-7

Installing an Option Card

Follow these steps to install an option card

If you are installing an option card that controls a mouse, you may need to change the setting of jumper JP3 or JP4 before you install the card. If you install a display adapter card, you may need to change the settings of jumpers JP5 and

JP7. See page 3-4 for instructions.

Remove the retaining screw from the top of the metal option slot cover; hold on to the screw so it doesn’t fall into the computer. Then lift out the slot cover.

3-8

Keep the screw to secure the option card to the computer. Store the slot cover in a safe place in case you remove the option card later.

Installing and Removing Options

3. Unpack the option card. When you handle it, be careful not to touch any of the components on the card or the goldedged Connectors If you need to set it down before you install it, place it gently on top of its original packing materials with the component side facing up. Keep the packing materials in case you remove the card later.

Adjust any switches or jumpers on the card, if necessary. (Check the option card instructions.)

Holding the card by the top comers, position it over the slot as shown below.

Insert the card into the slot, guiding it straight down. If the card does not go in smoothly, do not force it; pull it all the way out and try again, keeping it straight as you insert it. Examine the card to verify that it is fully seated in the slot.

Installing and Removing Options

3-9

5. Secure the end of the card to the back of the computer with the retaining screw.

After you replace the computer’s cover, check the documentation that came with your card to see if there are any post-installation procedures you need to perform before you start using the option. If you installed a card with an additional interface, you may need to run SETUP to change one of the computer’s built-in interface settings. See Chapter 2 of the

Setup Guide

for instructions.

Removing an Option Card

If you need to remove an option card, follow these steps:

Remove the screw securing the card to the back of the

computer and pull it straight up and out of the slot.

3-10

Installing and Removing Options

Cover the option slot opening with the original metal slot cover and secure it with the retaining screw.

If you are removing an option card that controls a mouse, you may need to change the setting of jumper JP3 or JP4 on

the main system board. If you are removing a display adapter card, you may need to change the settings of jumpers JP5 and JP7. See page 3-4 for instructions.

If you made any system configuration changes when you installed the card, change them again as necessary after you remove the card and replace the computer’s cover.

Memory Modules (SIMMs)

Your computer comes with 4MB of memory soldered onto the

main system board. By installing memory modules-also called SIMMs (single inline memory modules)--you can increase the amount of memory in your computer up to 128MB.

Caution

It is best to have your dealer install memory modules for

you because they can be damaged easily if installed incorrectly. If you prefer to install them yourself, carefully follow all the instructions in this section.

Before you install SIMMs, check the following guidelines to ensure that they will work properly:

Use only 36-bit, fast-page mode SIMM access speed of 70ns (nanoseconds) or faster. Be sure all the SIMMs operate at the same speed.

Use the correct SIMM configuration to add the amount of memory you want. See the table on the next page.

Installing and Removing Options

that operate at an

3-11

Although your computer can use any SIMM that complies with industry standards, it is best to use Epson SIMM option kits to ensure reliability and compatibility. If you choose another type of SIMM kit, check the shape of the SIMM to make sure it will fit in your computer. (Some manufacturers’ SIMMs are longer on one side, which prevents them from fitting inside the socket correctly.)

There are two SIMM sockets on the main system board, and each can contain one memory module. You can install SIMMs with a capacity of 1MB, 4MB, 16MB or 64MB.

The following table shows the possible SIMM configurations; do not install memory in any other configuration. Remember

that there is

already 4MB of memory soldered onto the main

system board.

SIMM configuration

3-12

16MB 1MB 16MB

1MB

Installing and Removing Options

21MB 21MB

SIMM configurations (continued)

64MB **

Standard soldered memory

Check with your dealer to see If this SIMM Is available

With this memory configuration, the 4MB of soldered memory Is disabled.

44MB * *

128 MB t

Once you have the SIMMs you need, you or your dealer can install them in your computer. If you want to install them

yourself, follow the instructions below.

Installing and Removing Options

3-13

Installing SIMMs

Follow these steps to install SIMMs:

Refer to the “Main System Board Map” on page 3-3 to locate

1. the SIMM sockets (at the back of the board, toward the

middle). If you are installing two SIMMs, it is easiest to install the first

SIMM in the left socket (labelled U12) first. Position it at an angle, as shown below, with the components facing toward

the

option slots.

3-14

Make sure you orient the SIMM in the correct direction before you push it into the socket.

Installing and Removing Options

3. Gently push the SIMM into the socket and then tilt it left until it is vertical, guiding the holes at each end of the

SIMM over the retaining posts at each end of the SIMM

socket.

retaining post

hole

The SIMM should snap into place over the retaining posts. If it does not go in smoothly, do not force it; pull it all the way out and try again.

Make sure the SIMM is fully inserted into the socket and

that the pins on the retaining posts extend through the holes in both ends.

If you are installing a second SIMM, repeat steps 2 and 3 to install it in the other socket.

5. After you replace the computer’s cover, be sure to run the SETUP program so your system can update its configuration. See Chapter 2 of the

Setup Guide

for

instructions.

Installing and Removing Options

3-15

Removing SIMMs

If you need to remove SIMMs from your computer, have your

dealer do it for you or follow the steps below.

If you are removing two SIMMs, remove the one in the right socket (labeled U11) first. Use your fingers or two small screwdrivers to pull away the tabs that secure the SIMM at each end. Be careful not to pull the tabs too far, or they may break.

3-26

tabs

As you pull away the tabs, the SIMM falls to the right at an angle. Release the tabs and lift the SIMM out of the socket.

If you are removing a second SIMM, repeat the procedure described above.

After you replace the computer’s cover, be sure to run the SETUP program so your computer can update its configuration. See Chapter 2 of the

Setup Guide

for

instructions.

Installing and Removing Options

Replacing the CPU Card

The components for your computer’s microprocessor are contained on the CPU card installed inside the computer. This allows you to easily upgrade your system by replacing the CPU card with a faster one. There are three cards available for your computer:

486SX/25

486DX/33

486DX2/66.

The instructions in this section describe how to remove the card installed in your computer and install a new one. You also need to perform these procedures if you want to install an OverDrive module or a math coprocessor on the CPU card.

Installing and Removing Options

3-17

Removing the CPU Card

Follow these steps to remove the CPU card from your computer:

Remove the retaining screw securing the card to the front of

the computer case, as shown below.

Pull the card straight up and out of its socket, as shown above.

3. If you are installing a new CPU card, follow the instructions on the next page.

If you are installing a math coprocessor or OverDrive module, see the appropriate section later in this chapter for

instructions. When you are ready to reinstall the CPU card,

return to page 3-19 for instructions.

3-18

installing and Removing

Options

Insfalling the CPU Card

This section explains how to install a CPU card in your computer. You need to do this if you have removed your card

to install a math coprocessor or OverDrive module on it or if you are installing a new CPU card.

If you are installing the 486DX2/66 card, go on to “Installing

the card” on page 3-21. If you are installing the 486SX/25 or 486DX/33 card, read “Checking the jumper settings,” below.

Checking the jumper settings

There are jumpers on the 486SX/25 card and the 486DX/33

card that indicate what type of card it is. These jumpers are set

to the correct position at the factory, but it is a good idea to check the settings to make sure they are correct. Also, if you install an OverDrive module on the 486DX/33 card, you need

to change the setting of one jumper.

The following illustrations show where the jumpers are located

on the two CPU cards.

486SX/25

Installing and Removing Options

3-19

486DX/33

W1,W2.W3

There is only one jumper on

the 486SX/25 card,

and it should

always be set to position B. If you have the 486DX/33 card, refer to the following table to

make sure the jumpers are set correctly before you install the card in your computer, and change them if necessary.

486SX/33 CPU card jumpers

Jumper setting

CPU card configuration

Card only; no OverDrive module

ODP486DX/33 module installed

W3 A

For general information on setting jumpers, see “Jumper Settings” on page 3-4.

3-20

Installing and Removing Options

Follow these steps to install the CPU card in your computer:

Position the card as shown below, aligning the two connectors on the bottom of the card with the two slots in the socket on the main system board. The hole in the bottom of the

bracket should fit over the vertical post on the bottom of the

computer case.

Guide the card straight into the socket until it is firmly seated.

If it does not go in smoothly, pull it out and try again.

3. Secure the bracket at the end of the card to the front of the computer case with the retaining screw.

4. After you replace the computer’s cover, run the SETUP program so your computer can update its configuration. See Chapter 2 of the Setup Guide for instructions. (You need only run the program and save the configuration; you do

not need to change any settings.)

Installing and Removing Options

3-21

Installing on OverDrive Module

If you have the 486SX/25 or 486DX/33 CPU card, you can enhance your system’s performance by installing an Intel OverDrive module on the card. This allows you to effectively double the internal clock speed of your computer’s microprocessor with a very simple upgrade procedure.

Note

Although there is an OverDrive socket on the 486DX2/66 card, there is no OverDrive module available for it at this time.

The type of module you choose depends on the CPU card you

have, as shown in the table below.

Available OverDrive modules

CPU card

486SX/25 486DX/33

If you install this module, you cannot also Install a 487SX/25 microprocessor

chip because both options require the same socket.

Check with your dealer on the availability of this chip.

OverDrive module

ODP486SX/25* ODP486DX/33**

You may prefer to have your dealer install the OverDrive module for you because it can be easily damaged if installed incorrectly. If you decide to install it yourself, be sure to read any documentation that came with it, especially any precautionary information. Then follow the instructions provided with the OverDrive module as well as those given in the appropriate section below to install it on your CPU card.

3-22

Installing and Removing Options

Remove the CPU card as described on page 3-18.

Place the card on an anti-static work surface with the components facing up.

Position the OverDrive module above the socket so the comer with the extra pin is over the comer in the socket with the extra hole.

extra pin

extra pin hole

Gently push the module straight into the socket, pressing evenly on all sides. Examine it to make sure it is inserted all the way into the socket.

Installing and Removing Options

3-23

5. If you installed the ODP486DX/33, you need to change the jumper setting of W3. See page 3-19 for instructions.

Reinstall the CPU card as described on page 3-19.

After you replace the computer’s cover, run the SETUP program so your computer can update its configuration. See Chapter 2 of the only run the program and save the configuration; you do

not need to change any settings.)

Setup Guide

for instructions. (You need

Installing a Math Coprocessor

A math coprocessor speeds up the numeric calculations your computer performs when using some applications. It also increases the speed at which graphic images are displayed on your monitor when you use certain graphics programs.

Roth the 486DX/33 and the 486DX2/66 CPU cards have a math coprocessor built into the microprocessor, but they also have an additional socket in which you can install a Weitek 4167 math coprocessor. On the 486SX/25 card, you can install a 487SX/25 microprocessor chip in the OverDrive module socket. This microprocessor has a built-in math coprocessor and replaces the 486SX/25 microprocessor on the card.

3-24

Note

If you install the 487SX/25 microprocessor chip, you cannot also install an OverDrive module on the card because both options require the same socket.

Installing and Removing Options

The following table lists which math coprocessors are available.

Available math coprocessors

If you have this CPU card

486SX/25

486DX/33

486DX2/66

You can install this coprocessor Intel 487SX/25 microprocessor (with

built-in coprocessor) Weltek 4167 Weltek 4167

Check with your dealer if you are not sure which type of math coprocessor to purchase.

You may prefer to have your dealer install the coprocessor for you because it can be easily damaged if installed incorrectly. If

you decide to install the coprocessor yourself, be sure to read any documentation that came with it, especially any precautionary information. Then follow the instructions provided with the coprocessor as well as those given in the appropriate section below to install it

on your

CPU card.

Caution

To avoid generating static electricity and damaging your math coprocessor, remain as stationary as possible while you install it. Also, be careful not to touch the metal pins on the chip.

Installing and Removing Options

3-25

Installing the Intel 487SX/25 Microprocessor

Carefully follow these steps to install an Intel 487SX/25 microprocessor on the 486SX/25 CPU card

Remove the CPU card as described on page 3-18.

Place the card on an anti-static work surface with the components facing up.

Position the microprocessor over the socket as shown below. Align the notched comer of the microprocessor over the

comer in the socket with the extra pin hole.

3-26

extra pin

hole

Caution

Be sure to all the pins in the microprocessor directly over the holes in the socket. If you insert the microprocessor in the wrong position, you could permanently damage it.

Installing and Removing Options

4. Make sure the pins in the microprocessor are directly over the holes in the socket. Then gently push it straight into the socket, pressing evenly on all sides.

Reinstall the CPU card as described on page 3-19.

After you replace the computer’s cover, be sure to run the SETUP program so your computer can update its configuration. (See Chapter 2 of the instructions.) Additionally, if the microprocessor came with any diagnostic software, you may want to run it to test the new microprocessor. (See the documentation for instructions.)

Setup Guide

for

installing a Weitek 4167 Coprocessor

Carefully follow these steps to install a Weitek 4167 math

coprocessor on either the 486DX/33 or 486DX2/66 card:

Remove the CPU card as described on page 3-18.

Place the card on an anti-static work surface with the components facing up.

Installing and Removing Options

3-27

Position the coprocessor over the socket as shown below. Align the notched corner of the coprocessor-marked with the orientation (index) dot-over the corresponding comer in the socket.

Index dot

3-28

Caution

Be sure to align the pins in the coprocessor directly over the holes in the socket. If you insert the math coprocessor in the wrong position, you could permanently damage it.

Make sure the pins in the coprocessor are directly over the holes in the socket. Then gently push the coprocessor straight into the socket, pressing evenly on all sides.

Reinstall the CPU card as described on page 3-19.

Installing and Removing Options

After you replace the computer’s cover, be sure to run the SETUP program so your computer can update its configuration. (See Chapter 2 of the instructions.) Additionally, if the math coprocessor came with any diagnostic software, you may want to run it to test the coprocessor. (See the documentation for instructions.)

Setup Guide

for

Replacing the video Daughterboard

Your computer’s video interface is provided by a video daughter-board installed on the main system board. Although the circuitry for controlling your VGA monitor resides on the main system board, the removable video daughterboard allows you to easily updgrade your maximum VGA resolution from

1024 x 768

provides an additional 1MB of video RAM and 24-bit true color display capability.

to 1280 x 1024. The enhanced video board also

Note

Your monitor must be able to display the higher resolutions in order to take advantage of the enhanced features.

Installing and Removing Options

3-29

Follow these steps to remove the video daughterboard in your

computer and install the enhanced one:

Remove the two hex screws securing the video port to the back of the computer. (If you do not have an appropriate hex driver to remove the screws, you can try using a small pair of needle-nosed pliers; but be careful not to damage the screws or the interface port.) Set the screws aside in a safe place.

3-30

Installing and Removing Options

2. The daughterboard has two sockets which fit over two of the four pin connectors on the main system board (the two

closest to the back panel). To remove the daughterboard, carefully lift up the socketed end of the board to release it as shown in the following illustration. Then remove the board from the computer and set it aside.

Wrap the old board in an anti-static bag and store it in a safe

place in case you need it later.

Installing and Removing Options

3-31

Epson U11, U12 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Optional Equipment

Memory

OverDrive Module

Math Coprocessor

Video Daughterboard

VGA Utilities

Where to Get Help

Turning On the Computer

Turning Off the Computer

Using Disks and Disk Drives

How Disks Store Data

Types of Diskette Drives

Caring for Diskettes and Diskette Drives

Write-protecting Diskettes

Inserting and Removing Diskettes

Using a Single Diskette Drive System

Formatting Diskettes

Making Backup Copies

Using a Hard Disk Drive

Special Keys on the Keyboard

Stopping a Command or Program

Resetting the Computer

locking the Computer’s Cover

Using a Password

Deleting a Password

Using Your Computer as a Network Server

Using a Password in Network Server Mode

Changing the Processor Speed

Entering Keyboard Commands

Using the ESPEED Program

Changing the Speaker Volume

Preparing the Hard Disk for Moving

Using AUTOEXEC.BAT and Other Batch Files

Special Precautions

Removing the Cover

Removing the Front Panel

Removing the Subassembly

Replacing the Subassembly

Replacing the Front Panel

Rep/acing the Cover

Main System Board Map

Jumper Settings

Setting the Jumpers

Option Cards

Installing an Option Card

Removing an Option Card

Memory Modules (SIMMs)

Installing SIMMs

Removing SIMMs

Replacing the CPU Card

Removing the CPU Card

Insfalling the CPU Card

Installing on OverDrive Module

Installing a Math Coprocessor

Installing the Intel 487SX/25 Microprocessor

installing a Weitek 4167 Coprocessor

Replacing the video Daughterboard