Dell Precision R5500 (Early 2011) - Manual (Page 38)

17. Remove the screws securing the Power Distribution Unit.
18. Carefully lift the Power Distribution Unit up and away from the computer.
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Installing the Power Distribution Unit
Installing the Power Distribution Unit
1. Place the power distribution unit on the computer.
2. Fix the screws securing the power distribution unit.
3. Route and place the CPU 1, CPU 2, SAS Backplane and optical driver power cables.
4. Connect CPU 1, CPU 2, SAS Backplane and optical driver power connectors.
5. Attach the cables leading to the power distribution unit.
6. Install the card cages .
7. Install the fan bracket .
8. Install the system fans .
9. Install the control panel .
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