ASUS P7P55D P7P55D-ASUS-2101 Intel LGA1156 Platform / Intel® P55 Express Chipset ASUS Hybrid Technology TurboV EVO - Ultimate O.C. Processor T.Probe - Leading Active Cooling Technology ASUS 16 Hybrid Phase Design* Quad-GPU CrossFireX Support! *16 Hybrid Phase = 12+2 Phase x T.Probe