Video Problems
The system is running but there is no display.
Probable Cause | Solution |
|
|
The monitor is not | Make certain the monitor is plugged in and |
turned on. | turned on. If power is applied to the |
| monitor, the green power LED should |
| illuminate. |
|
|
The monitor’s data | Make certain the monitor’s data cable is |
cable is not | connected to the video controller on the |
connected. | back of the system. |
|
|
The connector or | Check the connector and cable for bent or |
cable is damaged. | damaged pins. |
|
|
The monitor is | Connect a working monitor to the computer. |
defective. |
|
|
|
The monitor’s | Adjust the brightness and contrast knobs to |
brightness and | the center position. |
contrast controls are |
|
turned down. |
|
|
|
The video card is not | Open the system and reseat the video card. |
seated correctly. |
|
|
|
The video card is not | PCI video cards must be compatible with |
compatible with the | the system. |
system. |
|
|
|
The text on the display is dim or difficult to read.
Probable Cause | Solution |
|
|
The monitor’s | Adjust the brightness and contrast knobs |
brightness and | until the text becomes clear. |
contrast controls are |
|
turned down. |
|
|
|
Sunlight is glaring off | Position the monitor away from the sun or |
the display. | window. |
|
|
The CRT may be old. | Replace the monitor. |
|
|
Important!
Your system board may have a
Troubleshooting 63