background image

1

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

AAAA

Introduction

This installation guide provides the instructions needed to install and 
use your new SCSI host adapter. Once you have performed the simple 
installation steps listed on pages 2 through 6, your host adapter and 
SCSI devices are ready for operation.

We recommend that you keep this installation guide with your impor-
tant computer documents. One of the benefits of SCSI is that you can 
connect as many as seven peripherals to your host adapter. If you are 
not connecting the full complement of seven peripherals during your 
initial installation, when the time comes to add another peripheral, 
this guide will help with that installation.

Host Adapter BIOS

Provides booting capabilities from up 
to seven SCSI hard disk drives 
(under DOS 5.0 and above).

LED Connector

Connects to the computer's
LED cable to display activity
on the SCSI bus.

Internal SCSI-2 Connector

Uses a 50-pin internal SCSI ribbon
cable to connect up to seven internal
SCSI devices.

External SCSI-2 Connector

Uses 50-pin high-density external SCSI cables 
to daisy-chain up to seven external devices. 

AHA-2920 Host Adapter

Contents

Installation and Setup

Installation Steps . . . . . . . 2 - 6

Helpful Hints

Using Your Host Adapter   .  6

Modifying PCI Parameters    7

Connecting to the LED 

Connector  . . . . . . . . . . . . .  7

Need Assistance?

Troubleshooting Checklist  .  8

Common Problems and 

Solutions  . . . . . . . . . . . . . .  8

Summary of Contents for AHA-2920

Page 1: ...Adaptec Inc 691 South Milpitas Blvd Milpitas CA 95035 Adaptec the Adaptec logo AHA and EZ SCSI are trademarks of Adaptec Inc which may be registered in some jurisdictions Windows and Windows 95 are re...

Page 2: ...ts One of the benefits of SCSI is that you can connect as many as seven peripherals to your host adapter If you are not connecting the full complement of seven peripherals during your initial installa...

Page 3: ...AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA Installation and Setup WARNING Turn OFF power to the computer and disconnect the power cord Step 1 Remove the cover from the computer case If necessar...

Page 4: ...ue SCSI ID from 0 to 6 Refer to the device s documentation for instructions on setting the SCSI ID If you plan to boot your computer from a SCSI hard disk drive assign SCSI ID 6 to this drive Install...

Page 5: ...in a 50 pin internal SCSI cable with enough connectors to accommodate all of your devices Make sure the colored stripe on one side of the cable is aligned with pin 1 of the host adapter s connector Pi...

Page 6: ...terminators on the external device you are attaching at the end of the SCSI chain Remove or disable terminators on all devices that lie between the end of the SCSI chain and the host adapter On most e...

Page 7: ...Host Adapter Once your host adapter is installed you can refer to this section for useful information on using your host adapter Except for SCSI hard disk and CD ROM drives many SCSI devices require y...

Page 8: ...n the setup program Some configuration options apply to a specific PCI bus slot Therefore if you change these options be sure you are applying them to the slot in which the host adapter is installed R...

Page 9: ...e If your system has only SCSI disk drives Make sure the Hard Disk or Drives setting in your computer s setup program is set to None or No Drives Installed as is required for SCSI hard disk drives Mak...

Page 10: ...he 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 f...

Page 11: ...Adaptec Inc 691 South Milpitas Blvd Milpitas CA 95035 Adaptec the Adaptec logo AHA and EZ SCSI are trademarks of Adaptec Inc which may be registered in some jurisdictions Windows and Windows 95 are re...

Reviews: