Hello folks, I've had a ati radeon had 5670 for 2 years now, and this week has been horrible. My graphics card started crashing my computer when playing games and watching youtube, it flashes my screen gray for 1-10 seconds and then it goes off. My cursor becomes a bit depixalated and i fear that it will damage my cpu aswell as other stuff in my computer.( I don't know much about computers.) So what i'm asking you guys is it my graphics card that is causing this? Today I played path of exile for 30 minutes and it flashed and i just turned off my computer as soon as i could It scared me to death. So i opened my computer and i cleaned it after 2 years. ( I know horrible right? ) But it still crashed, it didn't give me bsods or anything it just restarts my computer. I get 56-54 Celsius temperature using the AMD program and the fan at 28%. Please help.