v
If the server is halted and a POST error code is displayed, see Appendix C,
“UEFI/POST error codes,” on page 1665. If the server is halted and no error
message is displayed, see “Troubleshooting by symptom” on page 178 and
“Solving undetermined problems” on page 199.
v
For information about power-supply problems, see “Solving power problems”
on page 197 and “Power-supply LEDs” on page 165.
v
For intermittent problems, check the event log; see “Event logs” on page 168 and
Appendix A, “DSA diagnostic test results,” on page 301.
Performing the checkout procedure
This topic provides instructions on how to perform the checkout procedure to
diagnose server hardware problems.
About this task
To perform the checkout procedure, complete the following steps:
Procedure
1.
Is the server part of a cluster?
v
No:
Go to step 2.
v
Yes:
Shut down all failing servers that are related to the cluster. Go to step 2.
2.
Complete the following steps:
a.
Check the power supply LEDs (see “Power-supply LEDs” on page 165).
b.
Turn off the server and all external devices.
c.
Check all internal and external devices for compatibility at
http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/.
d.
Check all cables and power cords.
e.
Set all display controls to the middle positions.
f.
Turn on all external devices.
g.
Turn on the server. If the server does not start, see “Troubleshooting by
symptom” on page 178.
h.
Check the system-error LED on the operator information panel. If it is lit,
check the light path diagnostics LEDs (see “Light path diagnostics” on page
160).
i.
Check for the following results:
v
Successful completion of POST (see “POST” on page 172 for more
information)
v
Successful completion of startup, which is indicated by a readable display
of the operating-system desktop
3.
Is there a readable image on the monitor screen?
v
No:
Find the failure symptom in “Troubleshooting by symptom” on page
178; if necessary, see “Solving undetermined problems” on page 199.
v
Yes:
Run DSA (see “Running the DSA Preboot diagnostic programs” on page
175).
– If DSA reports an error, follow the instructions in Appendix A, “DSA
diagnostic test results,” on page 301.
– If DSA does not report an error but you still suspect a problem, see
“Solving undetermined problems” on page 199.
Chapter 4. Troubleshooting
157
Summary of Contents for X3850 X6
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