Computer intermittent green screen or red screen troubleshooting steps

This situation, is not the monitor is the reason for the video card, so the main is to address these two aspects, the driver or software, the possibility is very little, anyway, I personally did not encounter this problem. If the feeling is a software or driver problem, you can open the machine into safe mode.

1th Step: Monitor VGA data line loose or bad contact.

Check the computer host behind the display of the VGA data cable, whether plugged or loose? If the LCD, it is best to the LCD and computer host on the VGA cable to unplug, and then try again, under the conditions of users can directly change a new VGA data cable to try.

The image below is the VGA data cable of the monitor, let us not make a mistake oh.

2nd step: Monitor itself hardware problems

This situation is also possible, generally can be the kind of big head display may appear, excluding the above reasons, under the conditions of the best users to directly change the display, or the host to other monitors to plug in the VGA data cable to try.

3rd Step: If the independent graphics card, it may be a stand-alone video card loose or bad contact with similar problems.

Generally, if the host box has not been moved, there will not be a similar problem. such as changing the VGA cable, and so on, I personally suggest the best disconnect the power, take apart the chassis to pull out the independent graphics, and then clean the chassis motherboard dust, focus on cleaning the graphics slots and independent video card of the Golden finger part. Then reinstall it and try again.