Installing the 8231-E2B voltage regulator module

Use this procedure to install a new or an upgraded 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 more information, see 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. Stop the system. For instructions, see Stopping a system or logical partition.
5. Open the front rack door.
6. Place the system into the service position. For instructions, see Placing a rack-mounted model into the service position.
7. Remove the service access cover. For instructions, see Removing the service access cover from a rack-mounted model.
8. Disconnect the power source from the system by unplugging the system. For instructions, see Disconnecting the power cords.
   Note: This system is equipped with a second power supply. Before continuing with this procedure, ensure that the power source to the system has been completely disconnected.

   (L003)

   
   or
   

9. 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.
10. Remove the voltage regulator module from its antistatic package.
11. Install the voltage regulator module by completing the following steps:
    1. Ensure that the connector tabs (A) are pushed out to the unlocked position before you install a new voltage regulator module. See the following figure.
    2. Carefully grasp the voltage regulator module along two edges and align it with the connector.
    3. Insert and secure the voltage regulator module into the connector by pushing the connector tabs (A) in.
       
12. Replace the service access cover. For instructions, see Installing the service access cover on a rack-mounted 8231-E2B system.
13. Place the system into the operating position, as described in Placing a rack-mounted model into the operating position.
14. Reconnect all power and signal cables to their respective connectors.
15. Close the rear rack door or the rear system door.
16. Start the system. For instructions, see Starting the system or logical partition.
17. Verify the installed part:
    • If you replaced the part because of a failure, verify the installed part as described in Verifying a repair.
    • If you installed the part for any other reason, verify the installed part as described in Verifying the installed part.