Okay, so I just recently bought a HIS radeon hd 6750 graphics card. I need to hook it up to the psu, but the problem is my psu doesn't have a 6 pin connector ( which is the only cable that will fit in the card ), in fact, my power supply is all SATA cables. Is there some type of converter I can buy? Or am i just completely noobin' out and missing the obvious here.