Hardware Reference Guide
www.hp.com
B–1
B
Hard Drive Installation Guidelines
Using the Cable-Select Feature with Ultra ATA
Devices
Optional drives are available from HP in kits that include a special
drive cable. 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 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.
