Lenovo ThinkServer TS100 Hardware Maintenance Manual page 172

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, ThinkServer TS100 Machine Types 6431, 6432, 6433, and 6434," on page 37
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
The monitor works when you
turn on the server, but the
screen goes blank when you
start some application
programs.
The monitor has screen jitter, or
the screen image is wavy,
unreadable, rolling, or distorted.
Wrong characters appear on the
screen.
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ThinkServer TS100 Types 6431, 6432, 6433, and 6434: Hardware Maintenance Manual
Action
1. Make sure that:
v The application program is not setting a display mode that is higher than the
capability of the monitor.
v You installed the necessary device drivers for the application.
2. Run video diagnostics (see "Running the diagnostic programs" on page 164).
v If the server passes the video diagnostics, the video is good; see "Solving
undetermined problems" on page 245.
v (Trained service technician only) If the server fails the video diagnostics,
replace the system board.
1. If the monitor self-tests show that the monitor is working correctly, consider the
location of the monitor. Magnetic fields around other devices (such as
transformers, appliances, fluorescent lights, and other monitors) can cause
screen jitter or wavy, unreadable, rolling, or distorted screen images. If this
happens, turn off the monitor.
Attention: Moving a color monitor while it is turned on might cause screen
discoloration.
Move the device and the monitor at least 305 mm (12 in.) apart, and turn on
the monitor.
Notes:
a. To prevent diskette drive read/write errors, make sure that the distance
between the monitor and any external diskette drive is at least 76 mm (3
in.).
b. Non-Lenovo monitor cables might cause unpredictable problems.
2. Reseat the monitor cable.
3. Reseat the Remote Supervisor Adapter II SlimLine adapter (if one is installed).
4. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Monitor
b. Remote Supervisor Adapter II SlimLine adapter
c. (Trained service technician only) System board
1. If the wrong language is displayed, update the BIOS code with the correct
language (see "Updating the firmware" on page 17).
2. Reseat the monitor cable.
3. Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Monitor
b. (Trained service technician only) System board