Hardware Reference Guide
www.hp.com
B-1
B
Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA
Devices
Optional drives and optional drive cables are available from HP in
kits. The configuration of the drive employs a cable-select feature that
identifies the drive as device 0 (primary drive) or device 1 (secondary
drive).
Device 1 is the drive connected to the middle cable connector. Device
0 is the drive connected to the end cable 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 select 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.
■
80-conductor Ultra ATA cable:
