Installing Drives 3-19

If you are installing an internal wide SCSI device (such as a wide SCSI hard-disk

drive)

, you have a 68-pin internal SCSI cable as shown in Figure 3-1 4. O ne en d of
this cable attaches to the SCSI host adapter card and the two connectors on the
other end of the cable are used for attaching up to two SCSI hard-disk drives.
If you are installing an external SCSI device
, you have a shielded external cable
that connects to the external SCSI connector on the SCSI host adapter card. You
have a separate power cable to connect the SCSI device to an AC power source.
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To configure and install one or more SCSI devices, follow these st eps:
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Configure the device for a SCSI ID number and termination, if necessary. For
instructions, refer to the documentation that came with the SCSI device as well
as “SCSI Configuration Guidelines” found earlier in this section.
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To install a SCSI hard-disk drive

, complete steps2, 3, and 5 of “Primary Hard-Disk
Drive Bay” or steps 2 through 7 of “Secondary Hard-Disk Drive Bay” found ear-
lier in this chapter. Then continue with step 4 of this procedure.

To install a 5.25-inch SCSI tape drive, CD-ROM drive, or digital audio tape (DAT)

drive,

complete steps 2 through 4 and step 6 of “Installing a Drive in a 5.25-Inch
Drive Bay” found earlier in this chapter. Then continue with step 4 of this
procedure.

To install a 3.5-inch SCSI tape drive

, complete steps 2 through 7 and step 9 of
“Upper 3.5-Inch Bay” or steps 2 through 5 and step7 of “Lower 3.5-Inch Bay
(Mini Tower Chassis Only)” found earlier in this chapter. Then continue with
step4 of this procedure.

To install an external SCSI tape drive

, continue with step 4 of this procedure.
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For instructions on configuring the card, refer to the documentation that came
with the card as well as “SCSI Configuration Guidelines” found earlier in this sec-
tion. For instructions on removing and installing the card, refer to “Expansion
Cards” in Chapter 2.
If you are installing a hard-disk drive, connect the thin access indicator cable to
the SCSI host adapter card and to the HD LED connector on the system board
(see Figure 2-4). This cable carries a signal from the SCSI host adapter card to the