IBM PS/2 65 SX Manual del propietario

FRONT

PICTURE 1

March 21, 1990

Part Number 64F3992

Form Number S64F-3992-00

IBM PS/2 Model 65 SX HMR

FRONT - 1

EDITION Edition Notice

Safety Information

Refer to the Hardware Maintenance Reference General Information

pamphlet in this manual for the following safety information:

General Safety

Electrical Safety.

First Edition (March 1990)

The following paragraph does not apply to the United Kingdom or any

country where such provisions are inconsistent with local law:

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IBM Corporation, Armonk NY 10504.

IBM PS/2 Model 65 SX HMR

Edition Notice

EDITION - 1

FRONT_1 Special Notices

References in this publication to IBM products, programs, or services do

not imply that IBM intends to make these available in all countries in

which IBM operates. Any reference to an IBM product, program or service

is not intended to state or imply that only IBM's product, program, or

service may be used. Any functionally equivalent product, program, or

service that does not infringe any of IBM's intellectual property rights

or other legally protectible rights may be used instead of the IBM

product, program, or service. Evaluation and verification of operation in

conjunction with other products, programs, or services, except those

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IBM may have patents or pending patent applications covering subject

matter in this document. The furnishing of this document does not give

you any license to these patents. You can send license inquiries, in

writing, to the IBM Director of Commercial Relations, IBM Corporation,

Purchase, NY 10577.

The following terms, denoted by an asterisk (*) in this publication, are

trademarks of the IBM Corporation in the United States and/or other

countries:

IBM

Personal System/2.

The following terms, denoted by a double asterisk(**) in this publication,

are trademarks of other companies as follows:

80387SX Intel Corporation

IBM PS/2 Model 65 SX HMR

Special Notices

FRONT_1 - 1

CONTENTS Table of Contents

EDITION Edition Notice

FRONT_1 Special Notices

CONTENTS Table of Contents

1.0 Product Description

1.1 Security

1.1.1 Cover Lock

1.1.2 Power-On Password

1.2 System-Board Features

1.2.1 Microprocessor

1.2.2 CMOS RAM

1.2.3 CMOS RAM Extension

1.2.4 ROM BIOS

1.2.5 VGA

1.2.6 Serial Port

1.2.7 Parallel Port

1.2.8 Diskette-Drive Controller

1.2.9 Keyboard Connector and Pointing-Device Connector

2.0 Option Compatibility

2.1 Drive and Diskette Compatibility

2.2 Fixed Disk Drives

2.3 Terminators

3.0 Operating Requirements

3.1 Power Supply

3.2 Power-On Self-Test (POST)

3.3 System Memory

3.3.1 System-Board Memory

3.3.2 Memory-Expansion Adapters

3.3.3 Memory Requirements and Limitations

3.3.4 Memory Errors

4.0 Specifications

5.0 Special Tools

5.1 Volt-Ohm Meter

5.2 Wrap Plug

6.0 Service Position

7.0 Removals and Replacements

7.1 1005 Cover

7.2 1010 Cover Lock

7.3 1015 Adapters

7.4 1020 Math Coprocessor

7.5 1025 Speaker Assembly

7.6 1030 Feet

7.7 1035 Front Bezel

7.8 1040 Carrying Handle

7.9 1045 Power Supply

7.10 1050 Diskette Drive

7.11 1055 Diskette Drive Support Structure

7.12 1060 Fixed Disk Drive (Front Bay)

7.13 1065 Fixed Disk Drive (Rear Bay)

7.14 1070 Fixed Disk Drive Bracket

7.15 1075 Fixed Disk Drive Support Structure

7.16 1080 Memory-Module Kits

7.17 1085 System Board

7.18 1090 Fixed Disk Drive Support Structure Bracket

8.0 Locations

8.1 Front View

8.2 Rear View

8.3 Interior View

8.4 Internal Cables

8.5 System Board

9.0 Safety Grounds

IBM PS/2 Model 65 SX HMR

Table of Contents

CONTENTS - 1

1.0 Product Description

|The IBM (*) Personal System/2 (*) Model 65 SX computers use the IBM Micro

|Channel (*) architecture. The features of the various types of Model 65

|SX are:

|Security: cover lock and power-on password

|System board:

| - 16-MHz 80386SX (**) Microprocessor.

| - 80387SX (**) Math Coprocessor socket.

| - 2MB (MB = 1,048,576 bytes) of random access memory (RAM). The

| total system memory capacity is 16MB.

| - 64 bytes of complementary metal-oxide semiconductor random access

| memory (CMOS RAM).

| - Read-only memory basic input/output system (ROM BIOS).

| - Video graphics array (VGA).

| - Eight expansion slots:

| - One auxiliary-video connector

| - One slot occupied by the SCSI Adapter.

| - Serial port.

| - Parallel port.

| - Diskette-drive controller.

| - Keyboard connector.

| - Pointing-device connector.

| - Display connector.

| - Fixed-disk-drive connector.

|Power supply:

| - Automatically switches to the 100-125 Vac or the 200-240 Vac range

| - 50 or 60 Hz

| - 225 watts.

|Speaker

|101/102-key keyboard

|Fixed disk drives supported (see "Fixed Disk Drives" in topic 2.2).

| (*) IBM, Personal System/2, and Micro Channel are trademarks of

| the International Business Machines Corporation.

| (**) 80386SX and 80387SX are trademarks of the Intel

| Corporation.

Subtopics

1.1 Security

1.2 System-Board Features

IBM PS/2 Model 65 SX HMR

Product Description

1.0 - 1

1.1 Security

Subtopics

1.1.1 Cover Lock

1.1.2 Power-On Password

IBM PS/2 Model 65 SX HMR

Security

1.1 - 1

1.1.1 Cover Lock

The cover lock is on the left side of the system unit and can be unlocked

with the user's key.

If the keys for the cover lock are lost, a new cover-lock assembly can be

ordered (see the parts section in the Hardware Maintenance Service

pamphlet for the model you are servicing). The new assembly contains two

keys. Use one of the new keys, along with a pair of pliers to force the

old cover lock open.

IBM PS/2 Model 65 SX HMR

Cover Lock

1.1.1 - 1

1.1.2 Power-On Password

A power-on password denies access to the system when the system is

powered-on. To service a system with an active and unknown power-on

password, use the following procedure:

1. Turn off the system unit and all attached options (such as the display

and printer).

2. Unplug all computer power cords from electrical outlets.

3. Remove the system-unit cover.

4. If necessary, temporarily remove any long adapters in expansion slots

1 to 4.

Note: Make a note of which expansion slot you are removing the

adapter from and where any cables are attached to the adapter.

You will need this information later, when you install the

adapters.

5. Locate the speaker connector 1 on the system board.

PICTURE 2

6. Unplug the speaker connector 1, turn it over (180°), and plug it back

in.

7. Reinstall any adapters that were removed.

8. Plug in all computer power cords.

9. Power-on the system.

This deactivates the password.

IBM PS/2 Model 65 SX HMR

Power-On Password

1.1.2 - 1

1.2 System-Board Features

|The major features of the system board are:

|80386SX Microprocessor

|CMOS RAM

|CMOS RAM Extension

|ROM BIOS

|VGA

|Serial port

|Parallel port

|Diskette-drive controller

|Keyboard connector

|Pointing-device connector.

Subtopics

1.2.1 Microprocessor

1.2.2 CMOS RAM

1.2.3 CMOS RAM Extension

1.2.4 ROM BIOS

1.2.5 VGA

1.2.6 Serial Port

1.2.7 Parallel Port

1.2.8 Diskette-Drive Controller

1.2.9 Keyboard Connector and Pointing-Device Connector

IBM PS/2 Model 65 SX HMR

System-Board Features

1.2 - 1

1.2.1 Microprocessor

|The microprocessor interprets and carries out instructions. The 80386SX

|Microprocessor is a 32-bit processor with a 16-bit external data bus and

|operates in two modes: real-address mode and virtual-address (protected)

|mode. The processor speed is 16 MHz.

IBM PS/2 Model 65 SX HMR

Microprocessor

1.2.1 - 1

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