Removing a DIMM

Use this information to remove a dual inline memory module (DIMM).

Before you remove a DIMM, complete the following steps:
  1. Read Safety and Installation guidelines.
  2. If the compute node is installed in a chassis, remove it (see Removing a compute node from a chassis for instructions).
  3. Carefully lay the compute node on a flat, static-protective surface, orienting the compute node with the bezel pointing toward you.
After you install or remove a DIMM, you must change and save the new configuration information by using the Setup utility. When you turn on the compute node, a message indicates that the memory configuration has changed. Start the Setup utility and select Save Settings (see Using the Setup utility for more information) to save changes.

To remove a DIMM, complete the following steps.

Note: Remove or install DIMMs for one microprocessor at a time.

Graphic illustrating the removal/install of DIMMs in the node

  1. Remove the cover (see Removing the compute node cover).
  2. Remove the air baffle installed over the DIMM connector.

    Graphic illustrating air baffles remove and install
  3. Locate the DIMM connectors (see System-board connectors). Determine which DIMM you want to remove from the compute node.
    Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, handle the clips gently.
    Note: The retaining clips for adjacent DIMM connectors of microprocessor one and microprocessor two can not be open at the same time. Remove or install the DIMMs for each microprocessor one at a time and close the retaining clips after removing a DIMM.
  4. Carefully open the retaining clips on each end of the DIMM connector.

    Graphic illustrating the DIMM retaining clips
    Note: If necessary due to space constraints, you can use a pointed tool to open the retaining clips. Place the tip of the tool in the recess on the top of the retaining clip; then, carefully rotate the retaining clip away from the DIMM connector.
  5. Make sure that both retaining clips on the DIMM connector from which you are removing the DIMM are in the fully-open position; then, pull the DIMM out of the connector.
  6. If you are not immediately replacing the DIMM, install the air baffle.
    Attention: To maintain proper system cooling, do not operate the compute node without air baffles installed over the DIMM connectors.
    Note: Retaining clips on the DIMM connectors must be in the closed position to install the air baffles.

If you are instructed to return the DIMM, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

Parent topic: Removing and replacing Tier 1 customer replaceable units (CRUs)