7. At the rear of the expansion unit, connect both of the power cables, as shown in Figure 32.
8. Close the rear rack door.
9. Start the system, as described in Starting the system or logical partition.
10. Verify the installed part, as described in Verifying the installed part.
Continue with any other service actions you want to perform.
Replacing an input power distribution assembly in a 5802 or 5877
expansion unit with the power turned off
Learn how to replace an input power distribution assembly in a 5802 or 5877 expansion unit if you
removed a failing assembly and must replace it.
If your system is managed by the Hardware Management Console (HMC), use the HMC to replace an
input power distribution assembly. For instructions, see Exchanging a part by using the Hardware
Management Console.
If your system is managed by the IBM Systems Director Management Console (SDMC), use the SDMC to
complete the steps for replacing a power supply in the server. For instructions, see Replacing a part by
using the Systems Director Management Console.
To replace an input power distribution assembly in an expansion unit for a system that is not managed
by an HMC or an SDMC, complete the following steps:
1. If you are replacing an input power distribution assembly because of a failure, remove the failing
part, as described in “Removing an input power distribution assembly from a 5802 or 5877
expansion unit with the power turned off” on page 25.
2. Perform the prerequisite tasks, as described in Before you begin.
Figure 32. Connecting the power cables at the rear of an expansion unit
30 Power Systems: Power supplies for the 9117-MMB, 9117-MMC, 9179-MHB, or 9179-MHC
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