Adaptec AHA-2920 Manual

Contents

1IntroductionThis installation guide provides the instructions needed to install anduse your new SCSI host adapter. Once you have performed the simpleinstallation steps listed on pages 2 through 6, your host adapter andSCSI 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 canconnect as many as seven peripherals to your host adapter. If you arenot connecting the full complement of seven peripherals during yourinitial installation, when the time comes to add another peripheral,this guide will help with that installation.Host Adapter BIOSProvides booting capabilities from upto seven SCSI hard disk drives(under DOS 5.0 and above).LED ConnectorConnects to the computer'sLED cable to display activityon the SCSI bus.Internal SCSI-2 ConnectorUses a 50-pin internal SCSI ribboncable to connect up to seven internalSCSI devices.External SCSI-2 ConnectorUses 50-pin high-density external SCSI cablesto daisy-chain up to seven external devices.AHA-2920 Host AdapterContentsInstallation and SetupInstallation Steps . . . . . . . 2 - 6Helpful HintsUsing Your Host Adapter . 6Modifying PCI Parameters 7Connecting to the LEDConnector . . . . . . . . . . . . . 7Need Assistance?Troubleshooting Checklist . 8Common Problems andSolutions . . . . . . . . . . . . . . 8