I would like to know if I have Kingston Kingston ValueRam KVR1333D3N9/2G , 2Gb/2048mb ddr3-1333 , CL9 , 1.5v - 240pin - lifetime warranty and would to to have a different Frequency such as Kingston Hyper-X KHX1600C9D3/2G ( KHX12800D3/2G ) , 2Gb/2048mb ddr3-1600 , CL9 , 1.9v - 240pin - lifetime warranty. Could I perhaps have have both in my mobo (ASUS P7P55D ) without having anything flawed Thanks. If I move on to Kingston Hyper-X would this be a mistake and cause my mother to Multifunction. I'm to sure if my mobo can handle two diffrent types of RAM!