Filter
Top Products
Monitor problems
Some Lenovo 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 the parts listing in the Hardware Maintenance Manual 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 the Hardware Maintenance Manual). 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 present).
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 present)
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 73.
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 the
Hardware Maintenance Manual for information about recovering from a BIOS
failure.
5. See the Hardware Maintenance Manual for information about solving
undetermined problems.
Chapter 5. Solving problems 71