Compaq ProLiant 2500 Maintenance And Service Manual page 48

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Figure 2-34.Removing the Power Supply
6. Remove the four screws at the rear of power supply.
7. Lift power supply out, pulling switch and cable through chassis.
Reverse steps 1 to 7 to replace the power supply.
Figure 2-35. Power Supply Switch Cable Strain Relief Bracket
IMPORTANT: When replacing the power supply, make sure
that the power switch cable is properly threaded through the
bracket's strain relief as shown in Figure 2-35.
Compaq ProLiant 2500 Family of Servers Maintenance and Service Guide
2-35