Installing A Drive In The 5.25-Inch Drive Bay; Figure 7-5. Drive Interface Connectors - Dell OptiPlex GXi Reference And Installation Manual

The drive's interface connector is a card-edge connector
or a header connector, as shown in Figure 7-5.
card-edge connector
on drive
header connector
on drive
colored
strip

Figure 7-5. Drive Interface Connectors

When attaching the interface cable to a drive, be sure to
match the colored strip on the cable to pin 1 of the drive's
interface connector. For the location of pin 1 on the
drive's interface connector, see the documentation that
came with the drive.
Most interface connectors are keyed for correct insertion;
that is, a notch or a missing pin on one connector matches
a tab or a filled-in hole on the other connector. Keying
ensures that the pin-1 wire in the cable (indicated by the
colored strip along one edge of the cable) goes to the
pin-1 end of the connector.
The pin-1 end of a card-edge connector is usually identi-
fied by a notch cut about a quarter of an inch from the
end of the connector, as shown in Figure 7-5. A header
connector is usually keyed by the omission of one of its
pins, while the corresponding hole is filled in on the cable
connector.
The pin-1 end of a connector on a board or a card is usu-
ally indicated by a silk-screened "1" printed directly on
the board or card.
CAUTION: When connecting an interface cable, do
not reverse the interface cable (do not place the col-
ored strip away from pin 1 on the connector).
Reversing the cable prevents the drive from operat-
ing and could damage the controller, the drive, or
both.
I
nstalling a Drive in the 5.25-Inch
Drive Bay
interface
cable
The 5.25-inch drive bay can accommodate any of the fol-
lowing types of drives:
•
A diskette drive or tape drive that uses the diskette/
tape drive interface on the system board
•
A CD-ROM or tape drive that uses the secondary
EIDE interface on the system board
•
A CD-ROM or tape drive that uses its own controller
card
For information on configuring, connecting, and install-
ing SCSI drives, see "Installing SCSI Devices" found
later in this chapter.
To install a drive in the 5.25-inch drive bay, follow these
steps:
1. Unpack the drive and prepare it for installation.
Ground yourself by touching an unpainted metal sur-
face on the back of the computer, and unpack the
drive. Check the documentation that accompanied
the drive to verify that the drive is configured for
your computer system. Change any settings neces-
sary for your configuration.
NOTE: If you are installing a non-EIDE tape drive,
check the documentation for the drive to determine
the jumper or switch settings used to designate the
drive as drive address DS4 (not DS2 or DS3 as may
be indicated in the drive documentation). Unless the
drive is already set to drive 4, reconfigure its jumper
or switch setting (see "Jumpers" and "Switches" in
Chapter 5).
Installing Drives 7-3