Servicing Field-Replaceable Units 131
Note – You must remove all four power supplies from the system.
■“Perform Electrostatic Discharge – Antistatic Prevention Measures” on page73
■“Remove the Top Cover” on page73
Do the following:
1. Remove the flex cable retainer.
Loosen the captive No. 2 Phillips screw and lift the retainer up and out of the
chassis.
2. Unplug the flex cable from the power distribution board.
3. Unplug the auxiliary power cable from t he power distribution board.
4. Remove the No. 2 Phillips screw.
5. Remove the two 7 mm hex nuts securing the bus bars to the power distribution
board.