B–4
Hardware Reference Guide
Hard Drive Installation
■
Every SCSI chain or circuit must be terminated (closed) at both
ends. Some system boards have both ends of the SCSI cable
connected to, and terminated by, the system board. Termination
can be accomplished through one of the following methods:
❏
Using a cable with a built-in terminator. This cable was
shipped with your workstation.
❏
Using a cable with a terminating resistor plug in the last
connector.
❏
Connecting a SCSI device with its termination enabled into
the last connector.
❏
Connecting an external SCSI device with its
termination enabled to the external SCSI connector
on the rear panel of the computer.
■
Turn on all external SCSI devices before turning on the power
to the computer. This action enables the SCSI controller to
recognize the external devices.
■
The system accommodates a combination of internal and external
SCSI devices, such as hard drives, tape drives, and CD-ROM
drives.
■
HP does not recommend mixing different-width SCSI devices
on the same SCSI chain or on the same SCSI channel. Mixing
devices of different widths on the same chain or channel will
always result in the data transfer rate of the slowest device in
that chain. It is acceptable to mix Wide-Ultra2, Ultra 160, and
Ultra 320 devices on a single channel. Do not put Narrow
devices on a channel with any device type other than another
Narrow device.
For additional information about optional SCSI devices, refer
to the documentation included with the device or contact your
HP authorized dealer, reseller, or service provider.
Ä
CAUTION:
Do not route cables near the air intake to the power supply.
Cables routed in this manner can block airflow to the power supply,
causing it to overheat.
Longbow.book Page 4 Thursday, August 22, 2002 11:38 AM
