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I.1800A : [I.1800A] A mismatch has been detected between the speed at which a QPI link has trained between two or more processor packages.

[I.1800A] A mismatch has been detected between the speed at which a QPI link has trained between two or more processor packages.

Processors have mismatched Bus Speed

Severity​

Error

User Response​

Complete the following steps:

  1. Verify that the Processor is a valid option that is listed as a Server Proven device for this system. If not, remove the Processor and install a Server Proven one.
  2. Verify that matching Processors are installed in the correct Processor sockets according to the service information for this product. Correct any mismatch found.
  3. Check IBM support site for an applicable service bulletin or firmware update that applies to this processor error.
  4. (Trained Service technician only) Replace the Processor. Inspect Processor socket and replace the system board first if socket is damaged