3-26 Disassembly and Reassembly
4. Secure the new device to the bracket with four screws, two to a side (see the figure “The
3 1/2-inch accessible device bracket” in the previous section).
5. Press the bracket cover over the front shield so the two side tabs click into place (see the
figure “The 3 1/2-inch accessible device bracket” in the previous section).
6. Slide the bracket into the lowest accessible bay in the chassis (for the chassis orientation
you plan to use). The tab on the end of each rail should click into place when the bracket is
in place.
7. Reconnect the power and signal cables for all devices in the two-device bracket.
8. Replace the front panel (see “Replacing the Front Panel”).
9. Replace the system unit cover (see “Replacing the Cover”).
3 1/2-Inch Internal Drives
The internal drives in the system are housed in a removable hard drive bracket. The hard drive
bracket is installed in the accessible device cage and is held in place by two screws on the front
of the chassis.
The following sections describe how to remove and install 3 1/2-inch internal drives in the
system.

Removing a 3 1/2-Inch Internal Drive

1. Remove the system unit cover and front panel (see “Removing the Cover” and “Removing
the Front Panel”).
Before removing the cover, turn off system power and unplug the
system power cable. Power is removed only when the power cable is unplugged.
2. Locate the internal drive bracket in the system (see the following figure).

Locating the Internal Drive Bracket

A – Internal Drive Bracket C – Accessible Device Cage
B – Front of Chassis
3. Tag and unplug the power and signal cables connected to all devices in the drive bracket.
4. Remove the screws that hold the drive bracket to the front of the chassis (see the following
figure).