Troubleshooting the processor

Symptom

A POST error message or an IML message is received.

Cause
  • One or more processors are not supported by the server.
  • The processor configuration is not supported by the server.
  • The server ROM is not current.
  • A processor is not seated properly.
  • A processor has failed.
CAUTION: To avoid damage to the processor or system board, only authorized personnel should attempt to replace or install the processor in this server.
Be sure to review the Processor troubleshooting guidelines before you attempt any steps that involve the processor.

Some steps in this procedure may require an authorized service provider. Be sure to refer to the server user guide for procedures provided in this section.

Action
  1. Be sure that each processor is supported by the server. Be sure that each processor is installed as directed in the server documentation.

    The processor socket requires specific installation steps. Only install supported processors.

  2. Be sure the server ROM is current.
  3. If not supported by the server, be sure that you are not mixing processor stepping, core speeds, or cache sizes.
  4. If the server has only one processor installed, reseat the processor.

    For more information, see the server maintenance and service guide.

    If the issue is resolved after you restart the server, the processor was not installed properly.

  5. If the server has only one processor installed, replace it with a known functional processor.

    If the issue is resolved after you restart the server, the original processor failed.

  6. If the server has multiple processors installed, test each processor:
    1. Remove all but one processor from the server.

      Replace each with a processor terminator board or blank, if applicable to the server.

    2. Replace the remaining processor with a known functional processor.

      If the issue is resolved after you restart the server, a fault exists with one or more of the original processors. To locate the faulty processor or processors, install each processor one by one, restarting each time. At each step, be sure the server supports the processor configurations.