Troubleshooting Chart - IBM eServer 220 xSeries Installation Manual

Troubleshooting chart

Monitor problems
The screen is blank.
Only the cursor appears.
The monitor works when you
turn on the server, but goes
blank when you start some
application programs.
Wavy, unreadable, rolling,
distorted screen, or screen jitter.
Wrong characters appear on the
screen.
Notes:
1. Refer to the User's Reference on the IBM xSeries Documentation CD for more
detailed troubleshooting charts.
2. If you cannot find the problem in the troubleshooting charts, run the diagnostic
programs. If you have run the diagnostic test programs, or if running the tests
does not reveal the problem, call for service.
Verify that:
1. The server power cord is plugged into the server and a working electrical
outlet.
2. The monitor cables are connected properly.
3. The monitor is turned on and the Brightness and Contrast controls are adjusted
correctly.
If the items above are correct and the screen remains blank, call for service.
Attention: In some memory configurations, the 3-3-3 beep code might sound during
POST followed by a blank screen. If this occurs and the Boot Fail Count feature in
the Start Options of the Configuration/Setup Utility is set to Enabled (its default
setting), you must restart the server three times to force the system BIOS to reset the
memory connector or bank of connectors from Disabled to Enabled.
Call for service.
Verify that:
1. The primary monitor cable is connected to the video port.
2. You installed the necessary device drivers for the applications.
If the items above are correct and the screen remains blank, call for service.
Some IBM monitors have their own self-tests. If you suspect a problem with your
monitor, refer to the information that comes with the monitor for adjusting and
testing instructions.
If the monitor self-tests show the monitor is OK, 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. (Moving a
color monitor while it is turned on might cause screen discoloration.) Then move the
device and the monitor at least 305 mm (12 in.) apart. Turn on the monitor.
Notes:
1. To prevent diskette drive read/write errors, be sure the distance between
monitors and diskette drives is at least 76 mm (3 in.).
2. Non-IBM monitor cables might cause unpredictable problems.
3. An enhanced monitor cable with additional shielding is available for the 9521
and 9527 monitors. For information about the enhanced monitor cable, see your
IBM reseller or IBM marketing representative.
If the problem remains, call for service.
If the wrong language is displayed, update the BIOS with the correct language.
If the problem remains, call for service.
Suggested action
Chapter 5. Solving problems
45