IBM AT/370 User manual

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Personal Computer AT/370
Hardware Reference
Library
Guide to
Operations

First Edition (October 1984)
This product could include technical inaccuracies or typographical errors. Changes are
periodically made to the information herein; these changes will be incorporated in new
editions of the publication.
The following paragraph applies only to the United States and Puerto Rico: International
Business Machines Corporation provides this manual "as is," without warranty of any
kind, either expressed or implied, including, but not limited to, the particular purpose.
IBM may make improvements and/or changes in the product(s) and/or the program(s)
described in this manual at any time.
Products are not stocked at the address below. Requests for copies of this product and for
technical information about the system should be made to your authorized IBM Personal
Computer AT/370 dealer.
A Reader's Comment Form is provided at the back of this publication. If this form has
been removed, address comments to: IBM Systems Technology Division, Product
Publications, Dept. KIO, P.O. Box 6, Endicott, NY 13760. IBM may use or distribute any
of the information you supply in any way it believes appropriate without incurring any
obligations whatever.
© Copyright International Business Machines Corporation 1984

Federal Communications Commission (FCC) Radio Frequency
Interference Statement
When connected to an FCC Cltm A host as aperipheral, using coaxial
cable, the foilowing warning applies:
WARNING: This equipment generates, uses, and can radiate
radio frequency energy and if not installed and used in accordance
. with the instructions manual, may cause interference to radio
communications. It has been tested and found to comply with the
limits for a Class A computing device pursuant to Subpart J of
Part 15 of FCC Rules, which are designed to provide reasonable
protection against such interference when operated in a
commercial environment. Operation of this equipment in a
residential area is likely to cause interference, in which case, the
user, at his own expense will be required to take whatever
measures may be required to correct the interference.
When the coaxial attachment to the host is not connected, this
equipment complies with the FCC Cltm B limits and the foil owing
warning applies:
WARNING: This equipment has been certified to comply with the
limits for a Class B computing device, pursuant to Subpart J of
Part 15 of FCC Rules. Only peripherals (computer input/ output
devices, terminals, printers, etc.) certified to comply with the
Class B limits may be attached to this computer. Operation with
non-certified peripherals is likely to result in interference to radio
and TV reception.
INSTRUCTIONS TO USER: This equipment generates and uses
radio frequency energy, and if not installed and used properly,
that is, in strict accordance with the operating instructions,
reference manuals, and the service manual, may cause
interference to radio and television reception. It has been tested
and found to comply with the limits for a Class B computing
device pursuant to Subpart J of Part 15 of FCC Rules, which are
designed to provide reasonable protection against such
interference when operated in a residential installation.
iii

If this equipment does cause interference to radio or 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 the receiving antenna.
• Relocate the computer with respect to the receiver.
• Move the computer away from the receiver.
• Plug the equipment into a different outlet so that equipment
and receiver are on different branch circuits.
• Make sure that card mounting screws, attachment connector
screws, and ground wires are tightly secured.
• Make sure that card slot covers are in place when no card is
installed.
• If peripherals not offered by IBM are used with this
equipment, it is suggested to use shielded, grounded cables,
with in-line filters if necessary.
If necessary, consult your dealer's service representative for
additional suggestions.
The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to this
equipment. It is the responsibility of the user to correct such
interference.
iv
CAUTION
This product is equipped with a line cord and plug designed
for the user's safety. It is to be used with a properly
grounded power receptacle to avoid possible electrical shock.

Preface
START INSTALLATION OR PROBLEM
DETERMINATION IN THIS MANUAL.
This book is for those who have:
• An IBM Personal Computer AT/370 system, or
• An IBM Personal Computer AT and are installing
the AT/370 Option.
It is used with the IBM Installation and Setup-Personal
Computer AT and the IBM Guide to
Operations-Personal Computer AT and is divided into
four sections; tabs and an index are also provided.
Section 1. Introduction: This section gives a short
description of the IBM Personal Computer AT /370. It
also shows an example of a typical system.
Section 2. AT/370 Option: This section contains
installation and tool requirements, and step-by-step
instructions for the installation of the two-card AT I370
option adapter.
Section 3. AT/370 System Setup: This section gives
directions for completing installation of the IBM
Personal Computer AT/370 system.
Section 4. Problem Determination Procedures: This
section has step-by-step procedures to help find and
solve problems. Several manuals are used during
problem determination. This section is the starting
point if problems occur when you operate your IBM
Personal Computer AT/370.
v

Associated Publications
vi
For information about IBM publications not shipped
with your system, contact your IBM representative or
an authorized IBM Personal Computer AT/370 dealer.
• IBM BASIC-Personal Computer 1
• IBM DOS (Disk Operating System)-Personal
Computer
• IBM Installation and Setup-Personal Computer AT
1
• IBM Guide to Operations-Personal Computer AT 1
• IBM Hardware Maintenance and Service-Personal
Computer AT/370
• IBM Hardware Maintenance and Service-Personal
Computer AT
• IBM VM/PC User's Guide
• IBM Technical Reference-Personal
Computer AT/370
• IBM Technical Reference-Personal Computer AT
Shipped with the system unit.

Contents
SECTION 1. INTRODUCTION ............. 1-1
Preparing for Installation . . . . . . . . . . . . . . . 1-3
Configuration Example . . . . . . . . . . . . . 1-4
How Your System Can Be Used ...... 1-5
SECTION 2. AT/370 OPTION .............. 2-1
IBM Personal Computer ATI370 Option 2-3
Introduction to the AT/370 Option ... 2-3
AT/370 Adapter Installation
Requirements . . . . . . . . . . . . . . . . . . . 2-4
Installing the AT/370 Option ........ 2-5
SECTION 3. AT/370 SYSTEM SETUP ....... 3-1
Installation and Setup of the AT/370 System 3-3
Installing the System . . . . . . . . . . . . . . . 3-3
Installing System/370 Personality . . . . 3-5
Installing the Operating System . . . . . 3-19
Moving Your IBM Personal Computer
AT/370 ...................... 3-20
SECTION 4. PROBLEM DETERMINATION
PROCEDURES ......................... 4-1
Problem Determination Procedures . . . . . . . 4-3
Introduction . . . . . . . . . . . . . . . . . . . . . 4-3
Symptom Index ................... 4-5
Diagnostic Testing . . . . . . . . . . . . . . . . 4-6
Index ................................ Index-1
vii

viii

SECTION 1. INTRODUCTION
Contents
Preparing for Installation . . . . . . . . . . . . . . . . . . •. 1-3
Configuration Example . . . . . . . . . . . . . . . . . . 1-4
How Your System Can Be Used ........... 1-5
Introduction 1-1

1-2 Introduction

Preparing for Installation
Read this entire page before starting installation.
The IBM Personal Computer AT/370 is an extended
version of the Personal Computer AT, with 512
kilobytes (5l 2K bytes) of memory on the system
board. The system unit has an AT /370 adapter, which
consists of two cards plugged into adjacent expansion
slots in the system board:
• The 512-kilobyte memory card (PC/370-M2)
• The processor card (PC/370-P2).
Because the IBM Personal Computer AT /370 is an
extended version of the IBM Personal Computer AT,
the IBM Personal Computer AT manuals are also used
for installation and problem determination. To
complete installation of your IBM Personal Computer
AT/370 (including DOS and IBM VM/PC), you need:
• This manual, (IBM Guide to Operations-Personal
Computer AT/370) and associated diskette,
• IBM Installation and Setup-Personal Computer AT,
• IBM Guide to Operations-Personal Computer AT
and associated diskette,
• IBM DOS (Disk Operating System)-Personal
Computer and associated diskettes,
• IBM VM/PC User's Guide and associated
diskettes.
If you have an IBM Personal Computer AT and are
installing the AT /370 Option, proceed with "IBM
Personal Computer AT/370 Option" on page 2-3.
If you are installing a complete IBM Personal Computer
ATI370 System,(with ATI 370 adapter cards already in
the system unit) go to "Installation and Setup of the
AT/370 System" on page 3-3.
Introduction 1-3

Configuration Example
.,
Cl
•
• An IBM Personal Computer AT/370 system with
512K bytes (K equals 1,024) of memory on the
system board, including:
A 20-megabyte fixed disk drive
A high-capacity diskette drive
AT /370 adapter (PC/370-P2 and
PC/370-M2 cards)
A remote display terminal device emulation
adapter card (optional)
A monochrome display and printer adapter or
color display adapter (optional)
• A keyboard
• A Serial/Parallel adapter
• An IBM monochrome or color display (optional)
• A printer (optional).
1-4 Introduction

How Your System Can Be Used
Operation of the IBM Personal Computer AT /370 is
generally the same as for the IBM Personal Computer
AT.
For detailed information on operation as an IBM
Personal Computer AT, see:
• IBM Guide to Operations-Personal Computer AT
• IBM Installation and Setup-Personal Computer AT
• IBM BASIC-Personal Computer
• IBM DOS (Disk Operating System)-Personal
Computer
• IBM Technical Reference-Personal Computer AT.
For differences that are under program control, see the
information (such as the IBM VM/PC User's Guide)
supplied with the program you are using.
The IBM Personal Computer AT /370 is supported by
the IBM VM/PC (Virtual Machine/Personal
Computer) operating system, which runs as an
application on Personal Computer DOS. You must
have IBM DOS 3.00 (or equivalent) installed before
you can install and use IBM VM/PC on your Personal
Computer AT/370.
Introduction 1-5

1-6 Introduction

SECTION 2. AT/3700PTION
Contents
IBM Personal Computer AT/370 Option ....... 2-3
Introduction to the AT /370 Option . . . . . . . . 2-3
AT /370 Adapter Installation Requirements . . 2-4
Tool Requirements . . . . . . . . . . . . . . . . . . 2-4
Installing the AT/370 Option ............. 2-5
AT/370 Option 2-1

2-2 AT/370 Option

IBM Personal Computer AT/370 Option
Introduction to the AT /370 Option
The IBM Personal Computer AT /370 Option provides
an extended version of the Personal Computer AT.
The option package contains the following:
• PC/370-P2 adapter and PC/370-M2 adapter,
with PC/370-P-M cable (adapters and cable
assembled as a unit) in an anti-static bag.
Warning: Do not open the anti-static bag at
this time.
• IBM Personal Computer AT/370 logo.
• This manual, (IBM Guide to Operations-Personal
Computer AT/370) and associated diskette.
If any items are missing or damaged, notify your place
of purchase.
Your IBM Personal Computer AT comes with support
brackets installed for all expansion slots. (If support
brackets are included with the AT /370 option, these
brackets are not needed.)
AT/370 Option 2-3

AT /370 Adapter Installation Requirements
Before you install the AT /370 adapter, you must have
an IBM Personal Computer AT with 512K bytes of
memory on its system board.
The memory card part of the AT/370 adapter also has
512K bytes of memory, 128K bytes of which are
directly addressable by the Personal Computer AT
when the AT/370 option is not in use. Because the
AT/370 adapter takes the place of the 128KB memory
expansion adapter, base memory size includes the
512K bytes of memory on the system board and the
128K bytes of memory in the AT/370 adapter.
Base Memory size MUST be set to 640K bytes during
setup:
• Go to the "SETUP INFORMATION" foldout in
the back of the IBM Installation and
Setup-Personal Computer ATmanual
• Circle "640K bytes" under "Total base memory
size"
• THEN RETURN TO THIS MANUAL to complete
installation of the AT/370 option.
Tool Requirements
• Medium-size, flat-blade screwdriver
Optional:
Medium screwstarter
3/16-inch nutdriver
1I4-inch nutdriver.
2-4 AT/370 Option

Installing the AT /370 Option
Unpacking the AT/370 Option
1 The anti-static bag contains the PC/370-P2
adapter and the PC/370-M2 adapter, with the
PC/370-P-M cable (assembled as one unit).
Remove the padding around the anti-static bag
containing the adapters and cable.
Warning: Do not open the anti-static bag at
this time.
2 Place the logo in a safe location in your work
area.
AT/370 Option 2-5

Removing the Cover
1 Set the system unit Power switch to Off.
2 Set all external Power switches to Off (printer,
display, etc.).
3 Be sure that the key lock is unlocked (turn the
key counterclockwise and remove the key).
Unlocked Position Locked Position
Key Lock
2-6 AT/370 Option