Compaq Deskpro Workstation 300 Hardware Reference Guide
B-1
Compaq Confidential - Need to Know Required
Writer: M. Church Part Number: 212399-001 File Name: g-appb.doc
Last Saved On: 09/21/00 1:26 PM Last Saved By: The Integrity Group
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NSTALLATION
Using the Cable-Select Feature with Ultra ATA Devices
Select models of the Compaq Deskpro Workstation 300 have an
internal IDE Ultra ATA hard drive preinstalled. The configuration of
the drives employs a cable-select feature that identifies the drives as
device 0 (primary drive) or device 1 (secondary drive).
The system board determines which drive is device 0 or device 1,
based on the way the drives are connected to the special drive cable.
The device 0 drive is the drive connected to the short segment of the
drive cable (or the connector closest to the system board); the device 1
drive is the drive connected to the long segment of the drive cable.
Compaq 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.
