Installing Drives 7-13
The connectors on narrow SCSI cables are keyed for
proper positioning—a raised area on the outside of
the header connector fits into a notch on the device
connector. The connectors on wide SCSI cables are
shaped so that they can be attached one way only.
If you are installing an external SCSI device, connec t
one end of the external SCSI cable to the SCSI bus
connector on the back of the device.
7. Attach the SCS I cable to the connector on the
SCSI host adapter card.
•If you are installing an internal SCSI device,
connect the colored edge on the internal SCSI
cable to the pin-1 end of the 50-pin connector
(for a narrow SCSI device) or the 68-pin con-
nector (for a wide SCSI device) on the adapter
card, and then press the cable connector firmly
onto the adapter card connector.
•If you are installing an external SCSI device,
connect the other end of the external SCSI cable
to the external connector on the adapter card.
For additional instructions, see the documentation
that came with the adapter card.
8. Connect the SCSI device(s) to power.
•If you are installing an internal SCSI device,
connect a DC power cable to the power input
connector on the SCSI device.
•If you are installing an external SCSI device, con-
nect the socket end of the power cable into the
AC power receptacle on the back of the SCSI
device. Connect the other end of the power cable
into a standard electrical wall outlet.
Check all other cable connections. Fold all internal
cables out of the way to provide airflow for the fan
or cooling vents.
9. If you installed an externally accessible device,
remove the front bezel and remove the front-
panel insert for the drive bay from the front
bezel. Then replace the front bezel.
For instructions, see “Removing and Replacing the
Front Bezel” and “Removing and Replacing Front-
Panel Inserts” found earlier in this chapter.
10. Replace the computer cover. Then reconnect your
computer and peripherals to their power sources,
and turn them on.
11. If necessary, enter the System Setup program to
update the system configuration information.
If you installed a SCSI hard-disk drive, set the Drive
category (0 or 1) under Drives: Primary to None. For
instructions, see Chapter 2, “Using the System Setup
Program.”
Tape drives attached to a SCSI host adapter card are
not part of the system configuration information.
12. If you installed a SCSI hard-disk drive, partition
and format the drive. Then install the operating
system.
For instructions, see the next subsection, “Partition-
ing and Formatting SCSI Hard-Disk Drives,” and
your operating system documentation.
13. Test the SCSI devices.
Test a SCSI hard-disk drive by running the SCSI
Device(s) Test Group of the Dell Diagnostics. See
your Diagnostics and Troubleshooting Guide for
information on running the Dell Diagnostics and
troubleshooting any problems that may occur.
To test a SCSI tape drive, refer to the documentation
for the tape drive software to perform a tape drive
backup and verification test.
Partitioning and Formatting SCSI Hard-Disk Drives
You may need to use different programs than those pro-
vided with the operating system to partition and format
SCSI hard-disk drives. Refer to the documentation that
came with your SCSI software drivers for information on
installing the appropriate drivers and preparing your
SCSI hard-disk drive for use.
NOTE: On systems with hard-disk drives larger than
2GB, create a primary partition of 2 GB and divide the
remaining capacity into partitions of 2 GB or less. For
example, a system with a 2.5-GB hard-disk drive would
have a primary partition of 2 GB (drive C) and a secon d
CAUTION: You must match the colored
strip on the internal SCSI cable with pin 1
on the adapter card connector to avoid
possible damage to your system.