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Replace model 55x or 720 memory modules

If you removed memory modules as a part of another procedure, you might need to replace memory modules. Use the procedure in this section to perform this task.

If your system is managed by the Hardware Management Console (HMC), use the HMC to complete the steps for replacing the memory modules in the server. For instructions, see Replace a part using the Hardware Management Console. If you do not have an HMC, complete the following steps to replace memory modules:
  1. Perform the prerequisite tasks described in Before you begin.
  2. If necessary, remove the memory module from its antistatic package.
  3. Ensure that the connector locking tabs are pushed out in the unlocked position before installing a new memory module.
    Attention: Memory modules are keyed to prevent a memory module from being installed incorrectly. Note the locations of the key tabs within the memory module connector before attempting to the memory module.
  4. Carefully grasp the memory module along two edges and align the connector.
  5. Insert the memory card firmly into the connector.
    Note: If you are adding new memory modules, ensure that the memory modules are balanced correctly. See Table 1.
  6. Secure the memory module with the locking tabs A located at each end of the memory module connector, as shown in the following figure.
    Figure 1. Replacing a memory module
    Memory module replaced.
    Video of memory replacement.Video of memory replacement.
  7. Replace the system processor assembly, see Replace model 55x or 720 system processor assembly.
  8. Verify the installed part. For instructions, see Verify the installed part.

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Last updated: Fri, Oct 30, 2009