For awhile now (6 mo+) my PC has had this issue where my monitor will lose the video signal and then a few seconds latter my PC will freeze and the only fix is to force a shutdown by holding in the power button for a few seconds then rebooting the computer. 9 times out of 10 this happens when I'm playing a game and the other times it will happen when I'm surfing the web very rarely, I can have my PC on doing nothing for 10 hours straight and nothing will happen. I used ATI tool to scan my GPU for memory artifacts and I ran that for about 5 mins and there were zero errors. I also used a program that tells you what temps your GPU is running at so I can find out if my GPU is overheating or not, while idling on the desktop the temp stays around 54 and 55 degrees C, after playing Elder Scrolls Skyrim for about 20min the GPU temp was around 67 and 69 degrees C. Are these normal temps for a GPU?
My theory is that there's something wrong with my GPU due to the fact that this issue mostly happens when I'm playing a game which is demanding on a GPU. I admit that I've owned my current PC for more than 2 years and I've rarely cleaned dust from inside the case. For the first time ever I recently removed my GPU and cleaned dust from it and there was allot of dust on it. I'm thinking all the dust caused my GPU over the last 2+ years to run hotter than normal which caused damage and now my GPU is failing. Do you guys agree or might it be something else?
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