Compaq 159715-002 - Deskpro EN - DT 6650 Model 10000 Configuration Manual page 133

Using the Cable-
Select Feature with
Ultra ATA Devices
appendix
H D
ARD RIVE
G
UIDELINES
Optional drives are available from Compaq in kits that include a
special drive cable. 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 computer
recognizes device 0 as the drive connected to the short segment
of the drive cable (farthest from the system board), and device 1
as the drive connected to the long segment of the drive cable
(closest to the system board).
When using an 80-pin conductor Ultra ATA cable, connect the
colored connectors as follows:
blue–system board (end)
gray–device 1 (middle)
black–device 0 (end)
Drive installation requires no jumper setting changes on the
existing or optional drives. All Compaq drives have the jumpers
preset for cable-select installation.
If installing a second device on the primary controller,
you must use an 80-pin conductor Ultra ATA cable for
optimal performance. This cable is standard on select
models and is also available as a Compaq option.
C
I
NSTALLATION
Making Hardware Changes C-1