Dell Precision Workstation 450 - General Guidelines; SCSI Cables; Hard Drive

Drives 75
General Guidelines
Follow these general guidelines when installing SCSI devices in your computer:
• Although you install SCSI devices essentially the same way as other devices, their
configuration requirements are different. For details on configuring your particular
SCSI subsystem, see the documentation for your SCSI devices and/or your host
adapter card.
• Configure the device for a SCSI ID number and disable termination, if necessary.
• To use an external SCSI device, you must have a SCSI controller card installed in your
computer. Connect one end of the external SCSI cable to the connector on the back
of the SCSI device. Attach the other end of the external SCSI cable to the connector
on the controller card installed in the computer.
• After you install a SCSI hard drive, Primary Drive 0 and Primary Drive 1 should be set
to None in system setup if no EIDE hard drives are installed. If you have any EIDE
devices on the second EIDE channel, such as a CD or tape drive, Secondary Drive 0
and/or Secondary Drive 1 should be set to Auto.
• You may need to use programs other than those provided with the operating system to
partition and format SCSI hard drives. See the documentation that came with your
SCSI software drivers for information on installing the appropriate drivers and
preparing your SCSI hard drive for use.
SCSI Cables
Ultra 320, Ultra 160/m, and Ultra2/Wide LVD drives (typically hard drives) both use a
68-pin cable. One end of the cable attaches to the SCSI connector on the system board or
the SCSI controller card installed in your computer. The remaining connectors on the cable
attach to the various drives.
Narrow SCSI drives (tape drives, CD drives, and some hard drives) use a 50-pin cable. One
end of this cable attaches to the SCSI controller card. The remaining connectors on the
cable attach to the various Narrow SCSI devices.
NOTICE: Dell recommends that you use only SCSI cables purchased from Dell. Cables
purchased elsewhere are not guaranteed to work with Dell computers.
Hard Drive
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
System Information Guide .