HP Professional sp750 Compaq Professional Workstation SP750 Hardware Reference - Page 60

Hard Drive Installation Guidelines,

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appendix C HARD DRIVE INSTALLATION GUIDELINES Using the Cable-Select .eature with Ultra ATA Devices Select models of the Compaq Deskpro Workstation AP250 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. Guidelines for Installing Ultra ATA (IDE) Devices When installing additional IDE drives, follow these guidelines: s .or optimal performance, connect hard drives to the primary controller. Connect expansion devices, such as IDE CD-ROM drives, tape drives, and diskette drives, to the secondary controller. s Install either a third-height or a half-height drive into a half-height bay. s Install guide screws to ensure that the drive lines up correctly in the drive cage. Compaq has provided extra guide screws, which are installed in the front of the workstation chassis behind the front bezel. Some options use M3 metric hardware. Compaq-supplied metric screws are black. Hardware Reference Guide C-1

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Hardware Reference Guide
C-1
Compaq Confidential - Need to Know Required
appendix
C
H
ARD
D
RIVE
I
NSTALLATION
G
UIDELINES
Using the Cable-Select ±eature with Ultra ATA Devices
Select models of the Compaq Deskpro Workstation AP250 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.
Guidelines for Installing Ultra ATA (IDE) Devices
When installing additional IDE drives, follow these guidelines:
■
±or optimal performance, connect hard drives to the primary
controller. Connect expansion devices, such as IDE CD-ROM
drives, tape drives, and diskette drives, to the secondary controller.
■
Install either a third-height or a half-height drive into a half-height
bay.
■
Install guide screws to ensure that the drive lines up correctly in
the drive cage. Compaq has provided extra guide screws, which
are installed in the front of the workstation chassis behind the front
bezel. Some options use M3 metric hardware. Compaq-supplied
metric screws are black.