Dell OptiPlex 3000 Series - Installing the System Board

Installing the system board
1 Hold the system board by its edges, and align it towards the back of the system.
2 Lower the system board into the system chassis until the connectors at the back of the system board align with the slots on the
chassis, and the screw holes on the system board align with the standos on the system chassis [1,2].
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Removing and installing components