Lenovo NeXtScale nx360 M4 Installation And Service Manual page 542

• 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.
Explanation: 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
• I.1800B [I.1800B] A cache size mismatch has been detected for one or more processor packages.
Explanation: Processors have one or more cache levels with mismatched size
Severity
Error
User Response
Complete the following steps:
1. Verify that matching processors are installed in the correct processor sockets according to the
service information for this product. Correct any mismatch found.
2. Check IBM support site for an applicable service bulletin or firmware update that applies to
this Processor error.
3. (Trained Service technician only) Replace the system board.
• I.1800C [I.1800C] A cache type mismatch has been detected for one or more processor packages.
Explanation: Processors have one or more cache levels with mismatched type
Severity
Error
User Response
Complete the following steps:
1. Verify that matching Processors are installed in the correct Processor sockets according to the
service information for this product.
2. Check IBM support site for an applicable service bulletin or firmware update that applies to
this Processor error.
3. (Trained Service technician only) Replace the system board.
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IBM NeXtScale nx360 M4 Installation and Service Guide