Replacing memory modules in the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D

Use this procedure to replace an existing memory 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 Enabling enclosure indicators and Control panel LEDs.
2. Complete the prerequisite tasks. For instructions, see Before you begin.
3. If necessary, remove the existing memory module. For instructions, see Removing memory modules from the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D and Removing memory risers from the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D. Go to step 6.
4. Place the system into the service position. For instructions, see Placing a rack-mounted model into the service position.
5. Remove the service access cover. For instructions, see Removing the service access cover from a rack-mounted model.
6. Use the service indicator light-emitting diodes (LEDs) to help identify the part. For instructions, see Identifying a part.
   Note: While the system is in the service position, dual inline memory module (DIMM) fault and identify LEDs are not visible for DIMM locations C3 and C4. To identify the correct DIMM by its LED for these locations, you must have first removed the memory riser. Then press the blue service button, which activates the LED.
7. Stop the system. For instructions, see Stopping a system or logical partition.
8. Disconnect the power source from the system by unplugging the system. For instructions, see Disconnecting the power cords.
   Note: A second optional power supply is available with this system. Before continuing with this procedure, ensure that the power source to the system is 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. Ensure that the connector is ready to receive the memory module. Remove the memory module filler, if one is present, by pulling the tabs up and outward. The lever action of the tabs forces the memory module filler out of the connector.
    Note: A memory module or a memory module filler is required in all locations on the memory riser to ensure proper cooling.
11. If necessary, remove the memory module from its antistatic package.
12. Ensure that the connector locking tabs (A) are pushed open into the unlocked position, as shown in Figure 1, before installing a new memory module.
13. Carefully grasp the memory module (B) along two edges and align it with the connector.
    Attention: Memory modules are keyed to prevent a memory module from being installed incorrectly. Note the location of the key tab within the memory module connector before attempting to install the memory module.
14. Push the memory module firmly into the connector and press the locking tabs down and in.
    Figure 1. Replacing a memory module

    
15. Replace the memory riser.
    1. Align the memory riser with the connector.
    2. Press firmly into the connector.
    3. Press the locking tabs into the closed position.
       Figure 2. Replacing a memory module riser

       
16. If you are installing memory modules as part of another procedure, return to that procedure now. If your service actions are complete, continue with the following steps:
    1. Replace the service access cover. For instructions, see Installing the service access cover on a rack-mounted model.
    2. Place the system in the operating position. For instructions, see Placing a rack-mounted model into the operating position.
    3. Reconnect the power source.
    4. Start the system.
       • If you are installing or removing system memory and the following conditions are true, set the power-on mode to Partition Standby.
         • The system is managed by the HMC.
         • The only logical partition is assigned all system resources.
         Start the system as described in Power On.
       • For all other conditions, start the system as described in Starting a system or logical partition.
    5. Verify the installed part or repair.
       • If you replaced the part because of a service action, verify the installed part as described in Verifying the repair.
       • If you installed the part for any other reason, verify the installed part as described in Verifying the installed part.