Intermittent Problems - Lenovo x3300 M4 7382 Installation And Service Manual

Intermittent problems

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
Symptom
A problem occurs only
occasionally and is difficult to
diagnose.
The server resets (restarts)
occasionally.
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System x3300 M4 Installation and Service Guide
Action
1. Make sure that:
• All cables and cords are connected securely to the rear of the server and
attached devices.
• When the server is turned on, air is flowing from the fan grille. If there is no
airflow, the fan is not working. This can cause the server to overheat and shut
down.
2. Check the event logs (see "Event logs" on page 125).
3. See "Solving undetermined problems" on page 154.
1. If the reset occurs during POST and the POST watchdog timer is enabled (click
System Settings --> Integrated Management Module --> POST Watchdog
Timer in the Setup utility to see the POST watchdog setting), make sure that
sufficient time is allowed in the watchdog timeout value (POST Watchdog
Timer). If the server continues to reset during POST, see Appendix B "UEFI/
POST diagnostic codes" on page 637 and Appendix C "DSA diagnostic test
results" on page 657.
2. Check the event logs (see "Event logs" on page 125).