Hi there. I just bought a new rig, and got this vid card, when I start a game (currently Dishonored) on max settings it runs beautiful, after about 30 mins the game freezes, so I alt tab out then go back in but the framerate drops a bit, but it still quite playable, just not flawless like it did. The card runs at 51c before it freezes so I cant imagine its to hot, I got the fan speed at max, the power at 20% (max it will go) and the memory clock and performance clock at 100%. After the card obviously clocks down and is only running at 1 3rd and is even cold to the touch settings say 30c at this point, the game still has a framerate lower than what it is during the first half hour, anyone know why its not running the way it should. yesterday for some reason it decided to stay at more than half clock speed and ran great, don't know why my cards making its own decisions. Thx for any info 
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