Bought a refurb EVGA Classified 580 card, had to buy new powersupply to provide power the way this beast wants it. Trouble is, I am looking at one 6-pin and two 8-pin PCI-e power receptacles. In some of the descriptions, EVGA brags about 14+3 Power---Do I hook the ALL up, or what? No help at all on the EVGA website--one generic graphics card manual that is useless. Any advice? Don't want to burn out this card, and that seems like a lot of power.