I only found a couple of deactivated versions of that card on Newegg...does your version use an 8-pin power connector? Your PSU will have two different kinds of 8-pin power connector; one is for a graphics card, and the other is for those motherboards with an 8-pin CPU power connector (yours has a 4-pin for the CPU). The two are not interchangeable, so do you have the right one in?
The power supply came with two cables that looked identical. An 8 pin on one end and a 6 pin on the other. The 6 pin plugs into the graphics card and the 8 pin goes into the psu. Even if I were to switch these, how would it affect the booting process? If the cable is wrong then wouldn't it just act the same as if it were unplugged?