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3 Diagnostics
3.5.10 Monitor or video problems
Table 3-11 Monitor or video problems
Symptom
Testing
monitor.
The
blank.
3-40
Follow the suggested actions in the order in which they are listed in the
Action column until the problem is solved.
See Chapter 4, "Parts listing, " 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.
Action
the
1. Make sure that the monitor cables are firmly connected.
2.
In a two-node configuration, make sure that the monitor is
connected to the primary server.
3. Try using a different monitor on the server, or try testing the
monitor on a different server.
4. If the monitor passes the diagnostic programs, the problem might be
a video device driver.
5. Replace the I/O-board shuttle.
screen
is
1. 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 directly to the correct connector on the rear of the server.
2. Make sure that:
The server is turned on. If there is no power to the server, see
"Power problems".
The monitor cables are connected correctly.
The monitor is turned on and the brightness and contrast controls
are adjusted correctly.
3. Make sure that the correct server is controlling the monitor, if
applicable.
4. Make sure that damaged server firmware is not affecting the video;
see "Recovering the server firmware" for information about recovering
from server firmware failure.
5. Observe the checkpoint code display on the light path diagnostics
panel; if the codes are changing, go to the next step.
6. Replace the following components one at a time, in the order shown,
restarting the server each time:
a. Monitor
b. Video adapter (if one is installed)
c. Replace the I/O-board shuttle.
7. See "Solving undetermined problems" for information about solving
undetermined problems.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Tecal RH5485 Server
Problem Determination and Service Guide
Issue 02 (2011-05-25)
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