Removing And Replacing Front-Panel Inserts; Connecting Drives; Figure 9-2. Removing A Front-Panel Insert; Figure 9-3. Dc Power Cable Connector - Dell Precision 400 User Manual

R
emoving and Replacing
Front-Panel Inserts
Empty drive bays contain a front-panel insert to protect
the inside of the computer from dust particles and to also
ensure proper airflow within the computer. Before you
install a drive in an empty drive bay, you must first
remove the front-panel insert.
To remove a front-panel insert for a 5.25-inch bay, follow
these steps:
1. Turn off the system, including any attached
peripherals, and disconnect all the alternating
current (AC) power cables from their power
sources.
2. Remove the computer cover as instructed in
"Removing the Computer Cover" in Chapter 7.
3. Lay the computer cover upside down on a flat
work surface, with the front of the cover facing
toward you.
4. With your thumbs, press in against each end of
the insert at about the midpoint until it snaps free
of the cover (see Figure 9-2).
computer cover
(upside down)
posts (2)

Figure 9-2. Removing a Front-Panel Insert

9-2 Dell Workstation Midsize Systems User's Guide
ring-tabs (2)
To remove the insert covering the 3.5-inch bay at the top
of the drive cage, follow these steps:
1. Complete steps 1 through 3 of the procedure for
removing a 5.25-inch insert.
2. Inside the cover, locate the spring-loaded back
end of the eject button mechanism for the
3.5-inch bay. Press the mechanism toward the
front panel to snap the plastic insert out of its
opening.
To replace a front-panel insert for a 5.25-inch bay: From
inside the cover, position the insert behind the bay open-
ing, insert the two ring-tabs (one on each end of the
insert) over the posts on the inside of the opening, and
carefully press both ends of the insert into place (see Fig-
ure 9-2).
To replace the front-panel insert for the 3.5-inch bay:
From outside the cover, place the insert in position and
press it into the opening.
C
onnecting Drives
When installing a diskette drive, tape drive, CD-ROM
drive, or hard-disk drive, you connect two cables—a
direct current (DC) power cable and an interface cable—
to the back of the drive. Your drive's power input connec-
tor (to which you connect the DC power cable) resembles
the connector shown in Figure 9-3.

Figure 9-3. DC Power Cable Connector

The drive's interface connector is a card-edge connector
or a header connector, as shown in Figure 9-4.
power input
connector
DC power cable