I have an NVIDIA Geforce GT 440 installed on my system. A problem suddenly exists a few weeks ago whenever I play games such as C.O.D blackops , A. Creed 3 or even NBA 2k13 suddenly shutsdown my system and restarts.. I check on the HW monitor to identify what component causes the problem and found out that the temperature of my video card exceeds the maximum temperature it has on its spec (http://www.geforce.com/hardware/desktop-gpus/geforce-gt-440-channel/specifications). It even reached 102 C. I tried cleaning up the hardware but of no improvement. Please advise.