Question My PC screen sometime turn into solid color (mostly white)

[agungaquarius2005]

When I was working with my computer or just playing games, my screen just suddenly turns to solid color. I can’t do anything except restart the pc my turning off the psu. Any help for this?

 

[agungaquarius2005]

Ok, now there’s another problem. After my screen turns to white, I turned off the PSU by the switch behind the PC. Then I turned on my computer and everything seems normal. Next I shutdown my computer normally. Then now I can’t turned on my PC.