IBM H Series Installation And Service Manual page 56

Step 1520-3
1. Turn the power off.
2. If you have not already done so, open the rear door of the rack unit and locate
the power supplies.
3. Unplug the power cord from the power outlet.
4. Unplug the power cord from the first (left) power supply.
5. Remove the screw from the center of the power supply handle, grasp the handle
of the power supply, pivot it upward and pull the the power supply out of the
drawer.
6. Plug the power cord into the power supply.
7. Plug the power cord into the power outlet.
Does the power LED on the power supply commence flashing within 30
seconds after applying AC power?
NO Replace the power supply.
Repeat this step for the second (right) power supply if installed.
Go to "Map 0410: Repair Checkout" in the Diagnostic Information for Mul-
tiple Bus Systems.
YES Repeat this step for the second (right) power supply if installed.
Go to "Step 1520-4" on page 2-23.
2-22
RS/6000 Enterprise Server Model H Series Installation and Service Guide