|FYI, from what I could find on that monster card it could pull as much as 289 watts. If all was off the +12V rail that equates to about 24A. While that is a huge draw for a graphics card, it should be well within the capacity of your PSU (60A @+12V).|
Most of the remaining hardware draws minimal +12V compared to any graphics card. The processor is the next big current draw. Your E6600 draws 65 Watts.