ASUS P7P55D Intel LGA1156/Intel P55 Express Chipset Motherboard ASUS Xtreme Design - TurboV, Turbo Key, Xtreme Phase, MemOK!, Express Gate, EPU, Q-DIMM Power Phase: True 8 + 2 Phase 4 - DDR3 2000 MHz (O.C). Up to 16 GB CrossfireX Support 8-CH HD Audio, supporting DTS