v Successful completion of POST (see “POST” on page 184 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
190; if necessary, see “Solving undetermined problems” on page 208.
v Yes: Run DSA (see “Running the DSA Preboot diagnostic programs” on page
187).
– If DSA reports an error, follow the instructions in Appendix B, “DSA
diagnostic test results,” on page 335.
– If DSA does not report an error but you still suspect a problem, see
“Solving undetermined problems” on page 208.
Diagnostic tools
The following tools are available to help you diagnose and solve hardware-related
problems:
v Light path diagnostics
Use light path diagnostics to diagnose system errors quickly. See “Light path
diagnostics” on page 170 for more information.
v Event logs
The event logs list the error codes and messages that are generated when an
error is detected for the subsystems IMM2, POST, DSA, and the server
baseboard management controller. See “Event logs” on page 181 for more
information.
v Integrated management module II
The integrated management module II (IMM2) combines service processor
functions, video controller, and remote presence and blue-screen capture features
in a single chip. The IMM provides advanced service-processor control,
monitoring, and alerting function. If an environmental condition exceeds a
threshold or if a system component fails, the IMM lights LEDs to help you
diagnose the problem, records the error in the IMM event log, and alerts you to
the problem. Optionally, the IMM also provides a virtual presence capability for
remote server management capabilities. The IMM provides remote server
management through the following industry-standard interfaces:
– Intelligent Platform Management Protocol (IPMI) version 2.0
– Simple Network Management Protocol (SNMP) version 3
– Common Information Model (CIM)
– Web browser
For more information about the integrated management module II (IMM2), see
“Using the integrated management module” on page 150, Appendix D,
“Integrated management module II (IMM2) error messages,” on page 493, and
the Integrated Management Module II User's Guide at http://www.ibm.com/
support/entry/portal/docdisplay?lndocid=MIGR-5086346..
v IBM Dynamic System Analysis
Two editions of IBM Dynamic System Analysis (DSA) are available for
diagnosing problems, DSA Portable and DSA Preboot:
– DSA Portable
168 System x3750 M4 Types 8722 and 8733: Installation and Service Guide
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