Preparing the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or 8284-22A system to install a memory module with the power turned off

Learn to prepare the system to install a memory module in the system.

1. Ensure that the software that is required to support the feature is installed on your system. For information about software prerequisites, see the IBM® Prerequisite website. If the required system firmware, software, or fix packs are not installed on your system, go to the Fix Central website to download and install them before you continue.
2. Determine the slot in which you want to install a memory module.
   Each system processor module supports eight memory modules. See Plugging rules for memory modules in the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or 8284-22A system to understand the plugging rules and ensure that the memory modules are plugged in the correct sequence.

   The memory module slots are on the system backplane. The memory module slots are visible after you have removed the service cover as instructed in this procedure.

   Figure 1 shows the locations and service indicators for the memory modules in the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or 8284-22A system.

   

3. Stop the system or logical partition. For instructions, see Stopping a system or logical partition.
4. If applicable, open the rack door at the rear of the system.
5. Disconnect the power source from the system by unplugging the system. For instructions, see Disconnecting the power cords.
   Note: The system might be equipped with redundant power supply. Before you continue with this procedure, ensure that all power to your system is disconnected.

   (L003)

   

   or

   

   or

   

   or

   

   or

   

   DANGER

   Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003)
6. Remove the front cover.
   For instructions, see Removing the front cover from the 5148-21L, 5148-22L, 8247-21L, 8247-22L, 8284-21A, or 8284-22A system.
7. For a rack-mounted system, place the system into the service position. For instructions, see Placing a rack-mounted model into the service position.
8. Attach the electrostatic discharge (ESD) wrist strap.
   The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is completed, and if applicable, until the service access cover is replaced.

   Attention:

   • Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.
   • When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used 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 an ESD 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. If at any point in this service process you move away from the system, it is important to once again discharge yourself by touching an unpainted metal surface for at least 5 seconds before you continue with the service process.
9. Remove the service access cover. For instructions, see Removing the service access cover.