Common problem of video card display is gpu overheating. So always check the GPU fan if it’s still working. If you see your Graphics card full of dust, clean it immediately before disaster takes that parts to garbage can.
Remove the video card from your desktop computer and follow these steps:
- brush the dust of video card
- unscrew the fan
- take out the fan
- remove the plastic cover
- put an oil
- take back the cover
- place the fan on the video card
- put back the screws
Watch the Graphics Card Cleaning