When I begin playing a game, it runs perfectly smoothly, even on high graphics settings. After a 1-5 minutes however, my PC will make this sort of revving noise, followed by the fps getting choppy, if the game is not immediately exited out of, the image crashes and the sound that was playing loops, creating a buzzing sound usually. I have tried this with a number of games, all wielding the same result in the end.
Games tested with: World of Warcraft, Minecraft, Orcs Must Die and Skyrim. I can play less CPU intensive games such as Minecraft for longer than, say, Skyrim. I have cleaned out my tower with compressed air, de-fragged and error checked my drive, all with no result.
This is really bugging me as I'mm unable to play any of these games I've purchased, this problem has persisted for about a week now and I'm tired of it.