Note1: Dual Channel: V = supports 2 modules and 4 modules Note2: 2PCS = tested successfully with 2 modules Note3: For 2pcs (DS), please use A2 and B2 slot. Note4: The O.C. mode is not guaranteed. It depends on whole system configuration and other parameters. Note5: For system stability, use more efficient memory cooling system to support a full memory load (4 DIMMs) when overclocking.