This power supply doesn't have dual 12v rails? Isn't that what you look for in a PSU?
Newegg.com - CORSAIR CMPSU-550VX ATX12V V2.2 550W Power Supply 90 - 264 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail
Welcome to Corsair :: VX Power Supply Product Information
Newegg.com - CORSAIR CMPSU-550VX ATX12V V2.2 550W Power Supply 90 - 264 V UL, CUL, CE, CB, FCC Class B, TUV, CCC, C-tick - Retail
Welcome to Corsair :: VX Power Supply Product Information