Lenovo System x3750 M4, Инструкция по установке и обслуживанию

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Microprocessor problems
Use this information to solve microprocessor problems.
Table 33. Microprocessor problems
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 5 “Parts listing, Lenovo System x3750 M4 Type 8753” on page 203 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by (Trained service technician only), that step must be performed only by
a Trained service technician.
Symptom Action
The server goes directly to the
POST event viewer when it is
turned on. 1. Check the IMM2 event log and resolve any errors that have occurred.
Monitor and video problems
Use this information to solve monitor and video problems.
Some monitors have their own self-tests. If you suspect a problem with your monitor, see the documentation
that comes with the monitor for instructions for testing and adjusting the monitor. If you cannot diagnose
the problem, call for service.
Table 34. Monitor and video problems
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 5 “Parts listing, Lenovo System x3750 M4 Type 8753” on page 203 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by (Trained service technician only), that step must be performed only by
a Trained service technician.
Symptom Action
Testing the monitor or video. 1. Make sure that the monitor cables are firmly connected.
2. If the server is attached to a KVM switch, bypass the KVM switch to eliminate it
as a possible cause of the problem; connect the monitor cable to the correct
connector on the rear of the server. If the video now works, replace the KVM
switch.
3. Try using the monitor on a different server. If it still does not work, replace the
cable, and then replace the monitor.
4. Make sure that the video device driver is at the latest level.
5. (Trained service technician only) Replace the system board.
The monitor works when
you turn on the server, but
the screen goes blank when
you start some application
programs. 1. Make sure that the following conditions are met:
• The application program is not setting a display mode that is higher than
the capability of the monitor.
• You installed the necessary device drivers for the application.
2. Run video diagnostics (see “Running the DSA Preboot diagnostic programs”
on page 177).
• If the server passes the video diagnostics, the video is good; see “Solving
undetermined problems” on page 198.
• (Trained service technician only) If the server fails the video diagnostics,
replace the system board.
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Lenovo System x3750 M4 Installation and Service Guide