Hey guys, i recently purchased a nvidia 660, it started up fine after i got it in. The problem is it crashes if i load up any game or use Windows experience index. As soon as my gpu hits any load the whole computer just shuts down. If i throw in my old card it works fine. I removed all old drivers from old card before installing, tried every release date of the 660 driver..
Phenom x4 965 Black edition
1tb Hard driver
throw that psu in the bin. get something from Antec, Corsair, Seasonic, XFX. Its not about the rated wattage of your psu, 600w is more than enough, but companies like "coolmax" lie, it is probably more like a 300w psu.