IBM 84802AX Installation Guide - Page 50

Troubleshooting chart

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Troubleshooting chart Notes: 1. See the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD for more detailed troubleshooting charts. 2. If you cannot find the problem in the troubleshooting chart, 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. Monitor The screen is blank. Suggested Action 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. Only the cursor appears. The monitor works when you turn on the server, but goes blank when you start some application programs. If the items above are correct and the screen remains blank, call for service. Call for service. Verify that: 1. The primary monitor cable is attached to the video connector. 2. You installed the necessary device drivers for the applications. 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 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 If the wrong language is displayed, update the BIOS code with the correct language. screen. If the problem remains, call for service. Power Suggested action The server does not turn on. Verify that: 1. The power cables are properly connected to the server. 2. The electrical outlet functions properly. 3. The type of memory that is installed is correct. 4. If you just installed an option, remove it, and restart the server. If the server now turns on, you might have installed more options than the power supply supports. If the problem remains, call for service. 38 Book Title

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38
Book Title
Troubleshooting chart
Notes:
1.
See the
Hardware Maintenance Manual and Troubleshooting Guide
on the
IBM
xSeries Documentation
CD for more detailed troubleshooting charts.
2.
If you cannot find the problem in the troubleshooting chart, 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.
Monitor
Suggested Action
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 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 attached to the video connector.
2.
You installed the necessary device drivers for the applications.
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 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 code with the correct language.
If the problem remains, call for service.
Power
Suggested action
The server does not turn on.
Verify that:
1.
The power cables are properly connected to the server.
2.
The electrical outlet functions properly.
3.
The type of memory that is installed is correct.
4.
If you just installed an option, remove it, and restart the server. If the server now
turns on, you might have installed more options than the power supply supports.
If the problem remains, call for service.