I got this computer probably about 3-4 years ago it worked great at the start i enjoyed playing video games, that i couldnt play on my older PC.And here comes the bad news about 3-4 months ago i was playing some borderlands 2.When suddenly the screen went black and started restarting i thought that was somekind of a random restart and i didnt pay attention but when i started to play more this error began to occur really often i though that is probably from the game so i deleted it.Then i started playing League of Legends, same story. working about 20-30 min sometimes even 2h and rebooting. I reinstalled my PC, didnt help.It reboots games i have played before and i am surprised.I asked my brother he told me to clean it so i did.This probably gave me some more time.About 30-35 min gameplay and restart again.It doesnt happen with all games.I can play counter strike, mineecraft , warcraft without a problem.Its like rebooting to all games with better graphics.If someone can give me an advice I`d appreciate it.