Lenovo Flex System x220 Installation And Service Manual page 596

Complete the following steps:
1. Verify that matching processors are installed in the correct processor sockets. Correct any
mismatch issues found.
2. Check the IBM support site for an applicable service bulletin or firmware update that applies to
this processor error.
3. Replace the processor. Inspect the processor socket and replace the system board first if the
socket is damaged.
Related links
– "Installing a microprocessor and heat sink" on page 678
– "Removing the system-board assembly" on page 683
– "Installing the system-board assembly" on page 684
• 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
Info
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 one listed on the Server Proven website.
2. Verify that matching processors are installed in the correct processor sockets. Correct any
mismatch found.
3. Check the IBM support site for an applicable service bulletin or firmware update that applies to
this processor error.
4. Replace the processor. Inspect the processor socket and replace the system board first if the
socket is damaged
Related links
– "Removing a microprocessor and heat sink" on page 675
– "Installing a microprocessor and heat sink" on page 678
– "Removing the system-board assembly" on page 683
– "Installing the system-board assembly" on page 684
• 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
Info
User Response
Complete the following steps:
1. Verify that matching processors are installed in the correct processor sockets. Correct any
mismatch found.
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Flex System x220 Compute Node Installation and Service Guide