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Solving Problems 115
Specific Problems and Corrective Actions
This section provides possible solutions for these specific problems:
• Power light does not light.
• There is no beep or an incorrect beep pattern.
• No characters appear on screen.
• Characters on the screen appear distorted or incorrect.
• System cooling fans do not rotate.
• Diskette drive activity light does not light.
• CD-ROM drive activity light does not light.
• There are problems with application software.
• The bootable CD-ROM is not detected.
Try the solutions in the order given. If you cannot correct the problem, contact your service
representative or authorized dealer for help.
Power Light Does Not Light
Check the following:
• Is the system operating normally? If so, the power LED is probably defective or the cable from
the front panel to the server board is loose.
• Are there other problems with the system? If so, check the items listed under “System Cooling
Fans Do Not Rotate Properly.”
• If all items are correct and problems persist, contact your service representative or authorized
dealer for help.
No Characters Appear on Screen
Check the following:
• Is the keyboard functioning? Check to see that the “Num Lock” light is functioning.
• Is the video monitor plugged in and turned on?
• Are the brightness and contrast controls on the video monitor properly adjusted?
• 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:
• Verify that the video controller board is fully seated in the server board connector.
• Reboot the system for changes to take effect.
• 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 may have failed. Contact your service representative or authorized dealer
for help.