Lenovo 1047 - Manual (Page 110)

Symptom Action
The monitor has screen
jitter, or the screen image is
wavy, unreadable, rolling, or
distorted. 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 inches) apart, and turn on
the monitor.
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 inches).
2. Reseat the monitor.
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
Wrong characters appear on
the screen. 1. If the wrong language is displayed, update the server firmware with the correct
language (see “Updating the firmware” on page 92).
2. Reseat the monitor.
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
Optional-device problems
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRUs) and which components are field replaceable units (FRUs).
• If an action step is preceded by “(Trained service technician only),” that step must be performed only by
a trained service technician.
Symptom Action
A Lenovo optional device that
was just installed does not
work. 1. Make sure that:
• The device is designed for the server. For a list of the supported options for
your server, go to http://www.lenovo.com/thinkserver. On the ThinkServer
systems page, click Products ➙ Options.
• You followed the installation instructions that came with the device and the
device is installed correctly.
• You have not loosened any other installed devices or cables.
• You updated the configuration information in the Setup Utility program.
Whenever memory or any other device is changed, you must update the
configuration.
2. Reseat the device that you just installed.
98 ThinkServer User Guide