If your power supply has the 6 pin PCI-E power connetor, you will want to use that. If it does not, you will want to use the molex to 6 pin connector. Usually the adapter has 2 molex connectors to (1) 6 pin. You will want to use both of them and make sure each is on a seperate segment.
That is what i figured; but when your not sure; ask.
Thanks for your help. The card is on it's way back to asus for repairs.