Troubleshooting 7-9
Problems and Solutions
Problem Symptom Solution
Monitor malfunction Unable to synchronize display. 1. Adjust the monitor’s synchronization
controls.
2. Check that the monitor’s resolution
matches the video setting or the video
driver used (see Section 2).
3. Check th at the utilit y is not select i ng a
refresh rate/resolution that is not supported
by the monitor.
4. Check th at the driver u sed matches th e
capabilities of the built-in video controller
and DRAM.
Wavy display. 1. Check that th e computer and m o nitor
are not near motors or electric fields.
Blank display. 1. Press any key or move the mouse to
ensure power management has not blanked
the display.
2. Check th at the monitor power ON/OFF
switch is ON.
3. Check th at the monitor cable is attac hed
to the video connector at the back of the
system.
4. Check cable connections between the
AC power supply and monitor.
5. Adjust brightness and contrast controls
on the monit o r.
6. Check cable connections between the
monitor connector and the graphics board.
7. Replace graphics board.
8. Replace m onitor.
CD-ROM drive
malfunction System power not on. 1. Turn system power on.
Disc tray does not open. 1. System power not on. Turn system
power on.
2. System p o wer failed. I nsert the end of a
straightened paper clip into the emergency
eject hole, then gently press inward until the
tray opens.