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

Learn how to replace 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 replacing a power supply. For instructions, see Exchanging a part using the Hardware Management Console.

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

  1. To remove the power supply, see Removing an 8234-EMA, 9117-MMA, or 9406-MMA power supply with power off.
  2. With the locking handle in the open position, place the new power supply in the power supply bay.
  3. Push the power supply (A) into place as shown in Figure 1.
    Figure 1. Replacing a power supply
    Close and lock power supply.
  4. Close the locking handle (B) until the locking tab (C) snaps into the closed position.
  5. Reconnect the power cable to the back of the power supply by routing it through the ring, if provided.
  6. Start the system, as described in Starting the system or logical partition.
  7. Note the state of the light-emitting diodes (LEDs) on the power supply. For more information, see Power supply LEDs. If the LEDs indicate that the power supply is operating normally, that is both of the green LEDs are on solid (not blinking), continue to the next step. If not, remove the power supply from the system and repeat the procedure starting with step 2. If, after repeating the procedure, the power supply is not operating normally, contact your service provider.
  8. Close the back rack door.