Installing Ultra160 LVD SCSI Drives

If your Macintosh has an internal Ultra160 LVD SCSI drive, you can connect up to two more internal Ultra160 LVD SCSI drives to the PCI card and cable inside the computer. This cable has the required connectors and a built-in terminator, so you don’t need to add one.

If you have one Ultra160 LVD SCSI drive, it is installed in lower drive position 1. The computer uses the drive in position 1 to start up.

Note: If your computer doesn’t have a SCSI hard disk drive, you need to install a SCSI PCI card in your computer to connect SCSI hard disks.

The procedures for disconnecting and connecting a SCSI hard disk drive and for removing and inserting drive carriers are nearly identical to those presented in the ATA drive installation instructions on page 57. Follow the ATA drive instructions when installing a SCSI drive. However, before installing your SCSI drive, note the following differences:

When you configure your SCSI hard disk drive

Assign a unique SCSI ID number to each new device. A single factory-installed drive uses SCSI ID 0; a second factory-installed drive uses SCSI ID 1; and a third factory-installed drive uses SCSI ID 2. The SCSI PCI card has been assigned ID 7. If you select one of these numbers for a new drive, the drive will not work properly.

When you attach the drive to the carrier

If you’re installing a SCSI drive in a computer that came with one SCSI drive, install the new drive in position 3 (see “Inside Your Power Mac—Your Computer’s Internal Expansion Options” on page 18). Do not install a SCSI drive in the top position of the U-shaped bracket.

SCSI drives that are 1" high are attached to the lower portion of the drive carrier from the bottom.

SCSI drives that are 1.6" high are attached to the lower portion of the drive carrier

by screwing it into position on its sides.

Position the hard disk drive on the drive carrier so that the ribbon cable connector and the power cord connector are accessible.

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Apple G4 manual Installing Ultra160 LVD Scsi Drives, When you attach the drive to the carrier