... fan: 12CM fanPFC type: Active PFCSupport: Intel,AMD the latest dual-core, quad-coreAuthentication: High energy efficiency, complies with Energy Stars ... active power factor correction (PF>0.99).*Design to support Dual / Quad Core CPU, NVIDIA SLI and AMD Crossfire X.*High ... hi-end graphic cards,Supports SLI and Cross Fire dual graphics card system. *Supports X56 ,P45, G45 and nFORCE 790i/780i chipset ...