General memory issues

Cause

  • The DIMM does not meet server requirements.

  • A DIMM has failed.

  • Third-party memory is installed on the server.

  • The DIMM is not properly seated.

Action
  1. Isolate and minimize the DIMM configuration.

    To determine the minimum configuration for DIMMs, see the Gen10 memory user guide in the Hewlett Packard Enterprise Information Library.

    Use care when handling DIMMs. For more information, see DIMM handling guidelines.

  2. Verify that the memory meets the server requirements and is installed according to the procedures found in the server user guide.

    Some servers might require that memory channels be fully populated or that all memory within a memory channel is the same size, type, and speed. To determine if the memory is installed properly, see the server user guide in the Hewlett Packard Enterprise Information Library.

  3. Check any server LEDs that correspond to memory slots.
  4. Test each channel of DIMMs, and test each DIMM.

    1. To verify that the channel is working, place one DIMM in a channel and remove all other DIMMs. Use the same DIMM to test each channel.

    2. To verify that the DIMM is working, place one DIMM in a known functioning channel. If the DIMM works, switch the DIMM with another DIMM.

      Continue this process until you have identified the failed DIMM or until you have tested each DIMM.

  5. Remove any third-party memory.
  6. Update the system ROM.

    For more information, see Keeping the system current.

  7. Replace the DIMM.

    For more information, see the server maintenance and service guide in the Hewlett Packard Enterprise Information Library.