IBM eserver xSeries 330 - Manual (Page 49)

Chapter 5. Solving problems 37
Monitor problems Suggested action
Testing the monitor. 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 you still cannot find the problem, call for service.
The screen is blank. 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 servers are C2T chained together, verify that:
1. The C2T chain cables are securely connected to the servers.
2. The C2T breakout cable is connected properly.
3. A powered-up server is selected.
Attention: In some memory configurations, the 3-3-3 beep code might sound during
POST followed by a blank display 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.
If the items above are correct and the screen remains blank, call for service.
Only the cursor appears. Call for service.
The monitor works when
you turn on the server, but
goes blank when you start
some application programs. Verify that:
1. The primary monitor cable is connected to the C2T device breakout cable.
2. You installed the necessary device drivers for the applications.
If the items above are correct and the screen remains blank, call for service.
Wavy, unreadable, rolling,
distorted screen, or screen
jitter. 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.
Wrong characters appear on
the screen. If the wrong language is displayed, update the BIOS with the correct language.
If the problem remains, call for service.