Installing The System Board - Dell OptiPlex 5055 Small Form Factor Owner's Manual

Installing the system board

1 Hold the system board by its edges and align it toward the back of the computer.
2 Lower the system board into the chassis until the connectors at the back of the system board.
3 Align with the slots on the chassis, and the screw holes on the system board align with the standoffs on the computer.
4 Replace the screws (12 lbs) to secure the system board to the computer.
5 Route all the cables through the routing clips.
6 Align the cables with the pins on connectors on the system board and connect the following cables to the system board:
a intrusion switch
b optical drive
c hard drive
d PSU
e power switch
f power distribution for optical drive and hard drive
7 Install the:
a expansion card
40 Disassembly and reassembly