IBM BladeCenter HT 8740, Руководство по диагностике и обслуживанию

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Monitor or video problems
Note: These symptoms apply only to the monitor that is connected to the
management module; they do not apply to the remote console.
Some IBM 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.
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, “Parts listing,” on page 23 to determine which components are CRUs and which
components are FRUs.
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
The monitor is not working
1. Make sure that:
v
The monitor is turned on and the brightness and contrast controls are
adjusted correctly.
v The monitor is connected to the active management module.
v
The blade server that owns the KVM is turned on.
v
The KVM is owned by a blade server that supports KVM.
2. Reseat the monitor cable.
3. Reseat the multiplexer expansion module (see “Removing a multiplexer
expansion module” on page 79)
4. Replace the monitor.
5. Replace the multiplexer expansion module.
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BladeCenter HT Type 8740 and 8750: Problem Determination and Service Guide