D20 Power Supplies - IBM pSeries 7311 D10 Service Manual

D20 Power Supplies

DANGER
Do not attempt to open the covers of the power supply. Power supplies are not serviceable and
are to be replaced as a unit.
D02
The Model D20 subsystem has power supplies that have hot-swap capabilities. To use this feature, you
must have two power supplies in place.
Power Supply Removal
Model D20 subsystems configured at the factory with one power supply have a power supply filler panel.
The filler panel protects the vacant power supply connector from dust or damage. If you plan to remove
one of the power supplies from a subsystem configured with two power supplies, obtain the power supply
filler panel. The part number for the power supply filler panel is 53P0233.
Note: You need not shut down the system to change a subsystem power supply.
Before performing any of the following procedure, read and understand all of the safety notices beginning
with "Safety Considerations" on page 41.
To remove a power supply from your subsystem, do the following:
1. Put the subsystem into the service position as described in "D20 Service Position" on page 113.
2. Open the service access cover as described in "D20 Service Access Cover" on page 115.
3. If your subsystem is configured with two power supplies, visually check the power supply LEDs. If one
of the power supplies has an amber LED that is lit or blinking, suspect that power supply to be faulty.
4. Remove the power cable from the rear of the power supply. Wait at least 10 seconds before
performing the next step.
5. Release, and then lift the power supply handles.
6. Lift the handles until they are perpendicular (90 degrees) to the top of the power supply. By placing the
handles perpendicular to the top of the power supply, the base or hinged portion of each handle acts
as a cam and will gently pry the power supply from its docking connector located on the subsystem
system board.
150 Eserver pSeries 7311 Model D10 and Model D20 Service Guide