11. Verify the installed part, as described in Verifying the installed part.
12. Close the front rack door.
Continue with any other service actions you need to perform.
Removing an input power distribution assembly from a 5802 or 5877
expansion unit with the power turned off
Learn how to remove an input power distribution assembly from a 5802 or 5877 expansion unit if you
must replace a failing assembly.
If your system is managed by the Hardware Management Console (HMC), use the HMC to remove an
input power distribution assembly. For instructions, see Removing 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 removing a power supply in the server. For instructions, see Removing a part by
using the Systems Director Management Console.
To remove an input power distribution assembly from an expansion unit for a system that is not
managed by an HMC or an SDMC, complete the following steps:
1. Perform the prerequisite tasks, as described in Before you begin.
2. Identify the failing part, as described in Identifying a failing part.
3. If the system is running, stop the system as described in Stopping the system or logical partition.
4. Open the rear rack door.
5. At the rear of the expansion unit, disconnect both of the power cables, as shown in Figure 27 on page
26.
Figure 26. Fan fault LED
Power supplies 25
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