Dell Precision 3930 Rack Service Manual page 58

Installing power distribution board
1 Align the power distribution board with the slots on the system chassis [1].
2 Replace the three (#6.32x6) screw that secures the power distribution board to the system board [2].
3 Reconnect the power distribution board, power cable [3], power supply unit fan cables [4] and the power distribution board connector
[5].
58 Removing and installing components