3-26 Disassembly and Reassembly4. Secure the new device to the bracket with four screws, two to a side (see the figure “The3 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 thefigure “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 orientationyou plan to use). The tab on the end of each rail should click into place when the bracket isin 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 DrivesThe internal drives in the system are housed in a removable hard drive bracket. The hard drivebracket is installed in the accessible device cage and is held in place by two screws on the frontof the chassis.The following sections describe how to remove and install 3 1/2-inch internal drives in thesystem.Removing a 3 1/2-Inch Internal Drive1. Remove the system unit cover and front panel (see “Removing the Cover” and “Removingthe Front Panel”).Before removing the cover, turn off system power and unplug thesystem 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 BracketA – Internal Drive Bracket C – Accessible Device CageB – Front of Chassis3. 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 followingfigure).