Here are my components:
Gigabyte X58A-UD7
Intel i7-930 @ 4.2 GHz (1.36V)
Noctua NH-D14
2x Sapphire HD 6970 CrossFire
Corsair XMS3 3x2GB @ 1600 MHz
3x HDD + 1x SSD + 1x DVD
I have Corsair HX 850W and I'm wondering is it enough? Activity on both GPUs won't cross 50%, is that because of PSU or...