Lenovo 6528 - Manual (Page 147)

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRUs) and which components are field replaceable units (FRUs).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A hard disk drive passes the
diagnostic Fixed Disk Test, but
the problem remains. Run the diagnostic SCSI Fixed Disk Test (see “Running the diagnostic programs”
on page 176).
Note: This test is not available on servers that have RAID arrays or servers that
have SATA hard disk drives.
Intermittent problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRUs) and which components are field replaceable units (FRUs).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A problem occurs only
occasionally and is difficult to
diagnose. 1. Make sure that:
v All cables and cords are connected securely to the rear of the server and
attached devices.
v 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 system-event log or IMM log (see “Event logs” on page 142).
3. See “Solving undetermined problems” on page 142.
Chapter 8. Troubleshooting 131