No Characters Appear on Screen
Check the following:
❑Is the keyboard working?
❑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
1.Verify that the video controller board is fully seated in the system board connector.
2.Run the SCU to disable the onboard video controller and specify that an offboard VGA/EGA adapter is installed.
3.Reboot the system for changes to take effect.
4.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. See “POST Beep Codes” on page 213.
5.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 assistance.
Characters Are Distorted or Incorrect
Check the following:
❑Are the brightness and contrast controls properly adjusted on the video monitor? Refer to the manufacturer’s documentation.
❑Are the video monitor signal and power cables properly installed?
If the problem persists, the video monitor may be faulty or it may be the incorrect type. Contact your service representative or authorized dealer for assistance.
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