Compaq 243850-002 manual Hard Drive Installation Guidelines

Hard Drive Installation Guidelines

■Every SCSI chain or circuit must be terminated (closed) at both ends. Termination can be accomplished through one of the following methods:

❏Using a cable with a built-in terminator. This cable was shipped with your computer.

❏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.

■Compaq 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 Compaq authorized dealer, reseller, or service provider.

ÄCAUTION: 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.

B–4 Hardware Reference Guide