Removing the 8233-E8B or 8236-E8C processor voltage regulator module

Learn how to remove a processor voltage regulator module.

1. Identify the system that you will be working on by using the identify the system process to turn on the system locate (blue) indicator. For instructions, see Enabling enclosure indicators and Control panel LEDs.
2. Use the service indicator light-emitting diodes (LEDs) to help identify the part. For instructions, see Identifying a part.
3. Complete the prerequisite tasks. For instructions, see Before you begin.
4. Remove the front cover. For instructions, see Removing the front cover from a rack-mounted 8233-E8B or 8236-E8C
5. Open the back rack door.
6. Stop the system. For instructions, see Stopping the system or logical partition.
7. Disconnect the power source from the system by unplugging the system.
   Note: This system has a second power supply. Before continuing with this procedure, ensure that the power source to the system has been completely disconnected.

   (L003)

   
   or
   

8. Place the system in the service position. For instructions, see Placing a rack-mounted 8233-E8B or 8236-E8C in the service position.
9. Remove the access cover. For instructions, see Removing the service access cover from a rack-mounted 8233-E8B or 8236-E8C.
10. Attach the wrist strap.
    Attention:

    • Attach a wrist strap to an unpainted metal surface of your hardware to prevent electrostatic discharge (ESD) from damaging your hardware.
    • When using a wrist strap, follow all electrical safety procedures. A wrist strap is for static control. It does not increase or decrease your risk of receiving electric shock when using or working on electrical equipment.
    • If you do not have a wrist strap, just prior to removing the product from ESD packaging and installing or replacing hardware, touch an unpainted metal surface of the system for a minimum of 5 seconds.
11. Remove the system processor assembly. (Skip the steps you have already completed.) For instructions, see Removing the 8233-E8B or 8236-E8C system processor assembly.
12. Remove the airflow cover by lifting the clear shield from the system.
    1. Loosen the screws (A).
    2. Slide the cover (B) from under the flange (C) and remove from the system processor assembly.
    
13. Locate the processor voltage regulator module to be removed from the system processor assembly.
    Figure 1. Processor voltage regulator module location (C1)

    
14. To remove the processor voltage regulator module from the system processor assembly, follow these steps:
    1. Grasp the latch end of both of the locked mechanical arms, and pull the locking latch (A) back to unlock, as shown in the following figure.
       Figure 2. Unlocking the processor voltage regulator module arms

       
    2. Lift both of the mechanical voltage regulator arms (A) upward at the same time until they are in the vertical position, as shown in Figure 3.
    3. Carefully pull up on both of the arms (A), at the same time, to lift the processor voltage regulator module from the system processor assembly.
       Figure 3. Removing the processor voltage regulator module from the system

       
15. Place the voltage regulator module on an electrostatic discharge (ESD) surface.