I have a Gigabyte 6850 http://www.gigabyte.com/products/product-page.aspx?pid=3614#dl. I have been trying to run the new 3dMark 13 this week but have had trouble with my system. When the system is running the Cloud Gate benchmark stage the system normally crashes (appears that the monitors go into standby mode system unresponsive). I have now lowered my core/memory clock from 775/1000 to 702/920 and now it can complete the test. This computer has been running 24/7 folding@home if I am not playing a game or editing photos for about 2 years with this card. Computer also crashes in Skyrim at random times but i have never had issues with any other software the rest of the time. Is my video card dying or is my psu starting to fail (Corsair TX650)?