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Hard Drive Installation Guidelines

Using the Cable-Select Feature with Ultra ATA Devices

Optional drives are available from HP in kits. The configuration of the drive employs a cable-select feature that identifies the drive as device 0 (master drive) or device 1 (slave drive).

Device 1 is the drive connected to the cable’s middle connector. Device 0 is the drive connected to the cable’s end connector (applies only to 80-conductor ATA cables). See “Guidelines for Installing Ultra ATA Devices” in this appendix for an example of an Ultra ATA cable.

HP hard drives ship with jumpers preset to cable-select mode; therefore, no jumper setting changes on the existing or optional drives are required. If you purchase a third-party hard drive, refer to the documentation included with the kit to ensure proper installation and configuration of cables.

✎If installing a second device on the primary controller, you must use an 80-conductor Ultra ATA cable for optimal performance. This cable is standard on some models.

Guidelines for Installing Ultra ATA Devices

When installing additional Ultra ATA drives, follow these guidelines:

■If using multiple Ultra ATA devices, HP recommends that the devices be split between the primary and secondary Ultra ATA channels for optimum performance. Use an additional Ultra ATA cable to connect the additional device to the system board.

Hardware Reference Guide

www.hp.com

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