Removing an 8203-E4A, 8204-E8A, 9407-M15, 9408-M25, or 9409-M50 power supply with power off

If your system is already powered off or if you need to perform another service task, learn how to remove the 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 a 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 front rack door.
  5. Remove the front cover, as described in Removing the front cover from a rack-mounted model or Removing the front cover from a stand-alone model.
  6. Disconnect the power cable from the back of the power supply that you want to remove.
    Disconnecting the power supply
    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

  7. Disconnect the power cable (A) from the front of the power supply as shown in Figure 1.
    Figure 1. Removing the power supply from a rack-mounted model
    remove power supply
  8. Press the locking lever (B) down into the open position.
  9. Pull the power supply out of the system.

If you need to replace the power supply you removed, see Replacing an 8203-E4A, 8204-E8A, 9407-M15, 9408-M25, or 9409-M50 power supply with power off.