Removing an 8234-EMA, 9117-MMA, or 9406-MMA power supply with power off

If your system is already powered off, or if you need to perform another service task with power off, learn how to remove a power supply with the system power off.

If your system is managed by the Hardware Management Console (HMC), you can use the HMC to complete the steps for removing a power supply. For instructions, see Removing a part using the Hardware Management Console.

To remove the power supply from a system that is not managed by an HMC while the system power is off , complete the following steps:

  1. Complete the prerequisite tasks described in Before you begin.
  2. Identify the power supply that needs to be replaced, 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 back rack door.
  5. Disconnect the power cable from the back of the power supply that you want to remove.
    Note: This system might be equipped with a second power supply. Before continuing with this procedure, ensure that all power sources to the system have been completely disconnected.

    (L003)

    or

  6. Push the release latch (A) into the open position, and lift the handle (B) as shown in Figure 1.
    Figure 1. Power supply unlocked
    Pushing the release latch and lifting the handle to the unlocked position.
  7. Pull the power supply out of the system.

If you need to replace the power supply you removed, see Replacing an 8234-EMA, 9117-MMA, or 9406-MMA power supply with power off.