Installing The Power Distribution And Fan Control Board - Dell Precision 7920 Owner's Manual

4 Remove the three screws that secure the control board to the chassis [1, 2]. Lift the control board away from the chassis.

Installing the power distribution and fan control board

1 Replace the control board into its slot on the chassis and secure it with the three screws to the chassis.
2 Connect the two power cables, fan cables, PDB, power VGA cables, to the connectors on the control board.
42 Removing and installing components