Bshipper said:
Well i put in a 550 watt power supply so it should be good right?... Newegg.com - Rosewill RP550V2-D-SL 550W ATX12V v2.01 SLI Ready CrossFire Ready Power Supply - Power Supplies this is whats in it now.
To answer no.....

you need a single +12 volt rail suppling 24amps of current the power supply you are using now is 18A x 2 which are independent so you only have 18 amps of current to supply the card I see way to many people not realize this when it comes to big video cards....big card= big power supply watts and AMPS