Lenovo ThinkServer n400, Инструкция по установке и обслуживанию

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The TMM combines service processor functions, video controller, and remote presence and blue-screen
capture features in a single chip. The TMM provides advanced service-processor control, monitoring,
and alerting function. If an environmental condition exceeds a threshold or if a system component fails,
the TMM lights LEDs to help you diagnose the problem, records the error in the TMM event log, and
alerts you to the problem. Optionally, the TMM also provides a virtual presence capability for remote
server management capabilities. The TMM 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 TMM, see “Using the TMM” on page 38, “TMM error messages” on
page 152.
• Troubleshooting by symptom
These tables list problem symptoms and actions to correct the problems. See “Troubleshooting by
symptom” on page 49 for more information.
System error LEDs
This section describes the system error LEDs on the system board and the suggested actions to correct
the detected problems.
The illustration shows the system-board LEDs. The system board has system error LEDs that will help to
locate the source of the error. Run the diagnostic programs to find out the cause of the error.
Chapter 3
.
Troubleshooting
45