Appendix B. Uefi/Post Diagnostic Codes; List Of Uefi Events - Lenovo System x3550 M4 Installation And Service Manual

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Appendix B. UEFI/POST diagnostic codes

UEFI/POST diagnostic error codes can be generated when the server starts or while the server is running.

UEFI/POST codes are logged in the IMM event log in the server.

For each event code, the following fields are displayed:

Event identifier

An identifier that uniquely identifies an event.

Event description

The logged message string that appears for an event.

Additional information to explain why the event occurred.

An indication of the level of concern for the condition. The severity is abbreviated in the event log to the

first character. The following severities can be displayed.

Table 29. Event severity levels

Informational

User response

The actions that you should take to resolve the event.

Perform the steps in the order shown until the problem is solved. After you perform all of the actions that

are described in this field, if you cannot solve the problem, contact Lenovo Support.

The following is the list of the UEFI/POST error codes and suggested actions to correct the detected

This section lists all messages that can be sent from UEFI.

• I.11002 [I.11002] A processor mismatch has been detected between one or more processors in the

Explanation: One or More Mismatched Processors Detected

An informational message is something that was recorded for audit purposes,

usually a user action or a change of states that is normal behavior.

A warning is not as severe as an error, but if possible, the condition should be

corrected before it becomes an error. It might also be a condition that requires

additional monitoring or maintenance.

An error typically indicates a failure or critical condition that impairs service or an

expected function.