Lenovo x3550 M4 Installation And Service Manual page 539

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.
Check IBM support site for an applicable service
2.
bulletin or firmware update that applies to this
Processor error.
(Trained Service technician only) Replace the
3.
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.
I.1800D [I.1800D] A cache associativity mismatch
has been detected for one or more
processor packages.
Explanation: 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. (Trained Service technician only) Replace the
system board.
I.1800E [I.1800E] A processor model mismatch
has been detected for one or more
processor packages.
Explanation: 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. (Trained Service technician only) Replace the
system board.
I.1800F [I.1800F] A processor family mismatch
has been detected for one or more
processor packages.
Explanation: Processors have mismatched Family
Severity: Error
User response: Complete the following steps:
Verify that matching Processors are installed in the
1.
correct Processor sockets according to the service
information for this product
Check IBM support site for an applicable service
2.
bulletin or firmware update that applies to this
Processor error.
(Trained Service technician only) Replace the
3.
system board.
I.18010 [I.18010] A processor stepping mismatch
has been detected for one or more
processor packages.
Explanation: Processors of the same model have
mismatched Stepping ID
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.
Appendix B. UEFI/POST diagnostic codes
I.1800B • I.18010
521