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Appendix D: Troubleshooting
210
• Are the video monitor switch settings correct?
• Is the video monitor signal cable properly installed?
• Is the onboard video controller enabled?
• If you are using an add-in video controller board, do the following:
1 Verify that the video controller board is fully seated in the PCI
add-in board connector (and verify that the video monitor is
plugged in to the active video controller).
2 Reboot the system for changes to take effect.
3 If there are still no characters on the screen after you reboot the
system and POST emits a beep code, write down the beep code
you hear. This information is useful for your service
representative.
If you do not receive a beep code and characters do not appear:
• The video display monitor or video controller might have
failed. You can verify this by trying the monitor on another
system or trying a different monitor on this system.
• The system did not find any valid memory installed. Verify
that you are using the correct type of memory for the system
and that you have installed it correctly. Refer to page 52.
Characters are distorted or incorrect
Check the following:
• Are the brightness and contrast controls properly adjusted on the
video monitor? See the manufacturer's documentation.
• Are the video monitor signal and power cables properly installed?
• Is the correct monitor/video board installed for your operating
system?
If the problem persists, the video monitor might be faulty or it might
be the incorrect type. Contact your service representative or
authorized dealer for assistance.
System cooling fans do not rotate properly
If the system cooling fans are not operating properly, system
components could be damaged.
AA G900 ug - EN.book Page 210 Wednesday, September 25, 2002 5:23 PM