IBM x3500 - System - 7977 - 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 Problem Determination and Service Guide on the IBM System x Documentation CD to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
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 Problem Determination and Service
Guide on the IBM System x Documentation CD).
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 Problem Determination and Service Guide on the IBM System x Documentation CD to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
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.
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 rear of the server at the fan
grille. If there is no airflow, the fan is not working. This can cause the server to
overheat and shut down.
If
the problem remains, call for service.
Chapter 5. Solving problems 79