IBM 7985, Руководство по диагностике и обслуживанию

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Monitor problems
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. If you cannot diagnose the problem, call for
service.
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 4, “Parts listing, System x3655, Type 7985 and 7943,” on page 93 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units
(FRU).
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
Testing the monitor
1. Make sure that the monitor cables are firmly connected.
2. Try using the other video port.
3. Try using a different monitor on the server, or try testing the monitor on a
different server.
4. Run the diagnostic programs (see “Running the diagnostic programs” on page
55). If the monitor passes the diagnostic programs, the problem might be a
video device driver.
5. Reseat the Remote Supervisor Adapter II SlimLine (if one is installed).
6. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Remote Supervisor Adapter II SlimLine (if one is installed)
b. (Trained service technician only) System board
The screen is blank.
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:
v
The server is turned on. If there is no power to the server, see “Power
problems” on page 46.
v
The monitor cables are connected correctly.
v
The monitor is turned on and the brightness and contrast controls are
adjusted correctly.
v
No beep codes sound when the server is turned on.
Important: In some memory configurations, the 3-3-3 beep code might sound
during POST, followed by a blank monitor screen. If this occurs and the Boot
Fail Count option in the Start Options of the Configuration/Setup Utility
program is enabled, you must restart the server three times to reset the
configuration settings to the default configuration (the memory connector or
bank of connectors enabled).
3. Make sure that the correct server is controlling the monitor, if applicable.
4. Make sure that damaged BIOS code is not affecting the video; see “Recovering
the BIOS code” on page 67 for information about recovering from a BIOS
failure.
5. See “Solving undetermined problems” on page 89 for information about solving
undetermined problems.
Chapter 3. Diagnostics
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