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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.
Explanation
Additional information to explain why the event occurred.
Severity
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 34. Event severity levels
Severity
Informational
Warning
Error
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.
Booting server to F1 setup menu
In additional to the normal process in booting the server to the F1 setup menu (pressing F1 when <F1
Setup> is displayed), there are two other ways for users to choose.
• Method 1
1. Proceed to the IMM2 website.
2. Select Server Management tab.
3. Select Server Power Action.
4. Select Boot Server to F1 Setup.
• Method 2Use Advanced Settings Utility (ASU) program. Command line is shown as follows: asu.exe
set IMM.ForceBootToUefi enable
Attention:
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Description
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.
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Troubleshooting
