General Procedure For Installing Scsi Devices; Table 7-1. Scsi Termination Guidelines - Dell OptiPlex GXi Reference And Installation Manual

Configuration
Internal narrow and
wide SCSI devices
Internal wide SCSI
and external narrow
SCSI devices
Internal wide SCSI
and external wide
SCSI devices
Internal narrow
SCSI and external
narrow SCSI
devices
Internal narrow
SCSI devices only
Internal wide SCSI
devices only
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in your online System User's Guide.
General Procedure for Installing SCSI
Devices
Configure and install one or more SCSI devices in your
computer as follows:
1. Determine which connector on the internal SCSI
cable you will attach to each SCSI device.
See "SCSI Configuration Guidelines" found earlier
in this section.
2. Unpack each SCSI device and prepare it for
installation.
Ground yourself by touching an unpainted metal sur-
face on the back of the computer. Configure the
device for a SCSI ID number and termination, if nec-
essary. For instructions, see the documentation that
came with the SCSI device as well as "SCSI Config-
uration Guidelines" found earlier in this section.
7-12 Dell OptiPlex GX i Mini Tower Systems Reference and Installation Guide

Table 7-1. SCSI Termination Guidelines

SCSI Host Internal Narrow
Adapter Card SCSI Device(s)
Termination Termination
enabled for upper enabled for lower
8 bits 8 bits on last device
Termination Not applicable
enabled for upper
8 bits
Termination Not applicable
disabled
Termination Termination
disabled enabled for lower
8 bits on last device
Termination Termination
enabled for lower enabled for lower
8 bits 8 bits on last device
Termination Not applicable
enabled for lower
8 bits
Internal Wide
SCSI Device(s)
Termination enabled
for all 16 bits on last
device
Termination enabled
for all 16 bits on last
device
Termination enabled
for all 16 bits on last
device
Not applicable
Not applicable
Termination enabled
for all 16 bits on last
device
3. If you are installing a SCSI host adapter card,
configure the adapter card.
For instructions on configuring the card, see the doc-
umentation that came with the adapter card as well
as "SCSI Configuration Guidelines" found earlier in
this section.
4. Install the SCSI devices as appropriate.
•
To install a SCSI hard-disk drive, complete
steps 3 through 7 of "Installing an EIDE Hard-
Disk Drive in the Hard-Disk Drive Bracket"
found earlier in this chapter. Then continue with
step 5 of this procedure.
•
To install a SCSI tape drive, CD-ROM drive, or
DAT drive, complete steps 2 through 6 of
"Installing a Drive in a 5.25-Inch Drive Bay"
found earlier in this chapter. Then continue with
step 5 of this procedure.
External Narrow
SCSI Device(s)
Not applicable
Termination
enabled for lower
8 bits
Termination
enabled for all
16 bits
Termination
enabled for lower
8 bits
Not applicable
Not applicable