IBM X 330 Series, Руководство по установке

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Chapter 5. Solving problems
37
The screen is blank. Verify that:
• The server power cord is plugged into the server and a working electrical outlet.
• The monitor cables are connected properly.
• The monitor is turned on and the Brightness and Contrast controls are adjusted
correctly.
If the servers are C2T chained together, verify that:
• The C2T chain cables are securely connected to the servers.
• The C2T breakout cable is connected properly.
• A powered-up server is selected.
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
feature in the Start Options of the Configuration/Setup Utility program is set to
Enabled (its default setting), you must restart the server three times to force the
system BIOS to reset the CMOS values to the default configuration (memory
connector or bank of connectors 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:
• The primary monitor cable is connected to the C2T device breakout cable.
• You installed the necessary device drivers for the applications.
If the items above are correct and the screen remains blank, call for service.
The screen is wavy,
unreadable, rolling, distorted, or
has screen jitter. If the monitor self-tests show the monitor is working properly, 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 code with the correct language.
If the problem remains, call for service.
Table 6. Troubleshooting charts.
Symptom Suggested action