Chapter 22 Solving Problems: Troubleshooting/Error Messages
267

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 switch settings on the video monitor correct?
❑ Is the video monitor signal cable properly installed?
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 PHP I/O baseboard connector.
2. Run the SSU to specify that an add-in VGA/EGA controller board is installed.
3. Reboot the server for changes to take effect.
4. If there are still no characters on the screen after you reboot the server and POST emits a beep
code, write down the beep code you hear. This information is useful for your service
representative. See "Error Codes and Messages" on page 269.
5. If you do not receive a beep code and characters do not appear, the video 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 monitor may be faulty or it may be the incorrect type. Contact your
service representative or authorized dealer for assistance.

Incorrect or no Beep Codes

If the server operates normally but there was no beep, the speaker may be defective. Run the SSU
to verify that the speaker is enabled (Chapter 5). If the speaker is enabled but not functioning,
contact your service representative or authorized dealer for assistance.
Record the beep code emitted by POST, and refer to "Error Codes and Messages" on page 269 for
information about beep codes and error messages.