• I.1800C A cache type mismatch has been detected for one or more processor packages.
Processors have one or more cache levels with mismatched type
Explanation: A cache type mismatch has been detected for one or more processor packages. 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. Replace the compute book.
• I.1800D A cache associativity mismatch has been detected for one or more processor packages.
Processors have one or more cache levels with mismatched associativity
Explanation: A cache associativity mismatch has been detected for one or more processor packages.
Processors have one or more cache levels with mismatched associativity
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. Replace the compute book.
• I.1800E A processor model mismatch has been detected for one or more processor packages.
Processors have mismatched Model Number
Explanation: A processor model mismatch has been detected for one or more processor packages.
Processors have mismatched Model Number
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. Replace the compute book.
• I.1800F A processor family mismatch has been detected for one or more processor packages.
Processors have mismatched Family
Explanation: A processor family mismatch has been detected for one or more processor packages.
Processors have mismatched Family
Severity
Error
Appendix D. UEFI/POST error codes 1929