Adaptec AHA-2740W User manual

Installation Guide

AHA-2740W/2742W Single-ended

AHA-2744W Differential

EISA-to-Fast, Wide SCSI Host Adapters

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Adaptec, Inc.

691 South Milpitas Boulevard

Milpitas, CA 95035

logo are registered trademarks of Adaptec, Inc.

Printed in Singapore

STOCK NO.: 510646-00 Rev. A LL 8/94

Information subject to change without notice.

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part of this publication may be reproduced, stored in a retriev-

al system, or transmitted in any form or by any means; elec-

tronic, mechanical, photocopying, recording or otherwise,

without the prior written consent of Adaptec, Inc., 691 South

Milpitas Blvd., Milpitas, CA 95035.

Trademarks

Adaptec, the Adaptec logo, and AHA are registered trade-

marks; and EZ-SCSI is a trademark of Adaptec, Inc. MS-DOS

is a registered trademark of Microsoft Corporation. NetWare

is a registered trademark of Novell, Inc. OS/2 is a registered

trademark of International Business Machines Corporation.

UNIX is a registered trademark of Unix Systems Laboratories.

Changes

The material in this document is for information only and is

subject to change without notice. While reasonable efforts

have been made in the preparation of this document to assure

its accuracy, Adaptec, Inc. assumes no liability resulting from

errors or omissions in this document, or from the use of the

information contained herein.

Adaptec reserves the right to make changes in the product de-

sign without reservation and without notification to its users.

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Adaptec Technical Support

Adaptec products have been specifically developed for easy in-

stallation and use. We believe that our documents and the on-

screen instructions and help are complete and clear enough to

meet your needs. If you need more assistance, please contact us.

The Adaptec Electronic Bulletin Board Service (BBS) provides

information on software upgrades, new releases, technical ad-

vice, and other topics. The BBS is available 24 hours a day at

408-945-7727; 1200/2400/9600/14400 baud, 8 data bits, 1 stop

bit, no parity.

To contact the Adaptec Technical Support Hot Line, call

800-959-SCSI (7274) or 408-945-2550; M-F: 6:00 a.m. to

5:00 p.m., Pacific Time.

Interactive FAX Service

The Adaptec Interactive FAX Service provides the latest on-

line information about Adaptec products and services. The

Adaptec Interactive FAX Service is available 23 hours a day,

7 days a week, at 408-957-7150.

Ordering Software and Cables

To order Adaptec software and SCSI cables, call 800-442-SCSI

(7274), M-F: 6:00 a.m. to 5:00 p.m., Pacific Time. If you are

calling from outside the U.S. and Canada, the number is

408-957-SCSI (7274).

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iii

Literature Hotline

To request additional documentation for Adaptec products,

call 800-934-2766, M-F: 5:00 a.m. to 6:00 p.m., Pacific Time.

FCC Compliance Statement

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 residential installa-

tions. 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

communications. However, there is no guarantee that interfer-

ence will not occur in a particular installation.

If this equipment does cause interference to radio or television

equipment 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

• Move the equipment away from the receiver

• Plug the equipment into an outlet on a circuit different

from that to which the receiver is powered

• If necessary, the user should consult the dealer or an

experienced radio/television technician for additional

suggestions

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CAUTION: Only equipment certified to comply with Class B

(computer input/output devices, terminals, printers, etc.)

should be attached to this equipment, and must have shielded

interface cables.

Finally, any change or modifications to the equipment by the

user not expressly approved by the grantee or manufacturer

could void the user's authority to operate such equipment.

Each host adapter is equipped with an FCC compliance label

which shows only the FCC identification number. The full text

of the associated label follows:

This device complies with part 15 of the FCC rules. Opera-

tion is subject to the following two conditions: (1) this device

may not cause harmful interference and (2) this device must

accept any interference received, including interference that

may cause undesired operation.

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Table of Contents

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Default Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

The Onboard Floppy Controller

(AHA-2742W and AHA-2744W Only) . . . . . . . . . 7

Installing the Host Adapter . . . . . . . . . . . . . . . . . . . . . . 8

Cabling the Host Adapter . . . . . . . . . . . . . . . . . . . . . . . . 9

Connecting Internal SCSI Devices . . . . . . . . . . . . 10

Connecting External SCSI Devices. . . . . . . . . . . . 11

Connecting Floppy Drives (AHA-2742W and

AHA-2744W Only). . . . . . . . . . . . . . . . . . . . . . . . 13

Terminating the SCSI Bus . . . . . . . . . . . . . . . . . . . . . . 14

Configuring Host Adapter Termination . . . . . . . . 15

Setting the SCSI ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Configuring the Host Adapter . . . . . . . . . . . . . . . . . . . 21

Run the EISA Configuration Utility . . . . . . . . . . . 21

Copy Configuration and Overlay Files . . . . . . . . . 21

Select the Host Adapter. . . . . . . . . . . . . . . . . . . . . 22

Configure the Host Adapter Parameters . . . . . . . 22

BIOS and SCSI Device Configuration . . . . . . . . . . . . . 26

BIOS Configuration . . . . . . . . . . . . . . . . . . . . . . . . 26

SCSI Device Configuration . . . . . . . . . . . . . . . . . . 27

Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Disk Format Utility . . . . . . . . . . . . . . . . . . . . . . . . 29

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Operating Environment Software . . . . . . . . . . . . . . . . 30

DOS/Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Novell NetWare®, OS/2®, and UNIX®. . . . . . . . . 31

Troubleshooting Checklist . . . . . . . . . . . . . . . . . . . . . . 32

❒

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Getting Started

This document provides the steps required for installa-

tion of the AHA-2740W and AHA-2742W single-ended,

and the AHA-2744W differential EISA-to-Fast, Wide

SCSI Host Adapters. The AHA-2740W and AHA-2742W

support single-ended SCSI, while the AHA-2744W

supports differential SCSI. In this document, the

AHA-2740W,AHA-2742W,andAHA-2744Warereferred

to jointly as the AHA-2740W/2742W/2744W.

Procedures for all three adapters are the same except

when regarding the onboard floppy controller on the

AHA-2742W and AHA-2744W. Installation of the host

adapter includes the following steps:

1Installing the AHA-2740W/2742W/2744W host

adapter in an EISA system.

2Installing the SCSI cable(s) and SCSI peripheraldevices.

3Terminating the SCSI bus.

4Setting the SCSI ID.

5Adjusting the host adapter configuration settings if

necessary.

6Loading software if necessary.

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AHA-2740W/2742W/2744W

Board Layout

Figure 1 shows the location of the major components on

the AHA-2740W and AHA-2742W host adapters; Table 1

provides a description of each component for the

AHA-2740W and AHA-2742W.

Figure 1. Board Layout for the AHA-2740W and AHA-2742W

PIN 1PIN 1

J1 J3 J4 J5

U7 U11 U12 J6U1U3

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