I'm trying to design a build for a computer I want. Its the first time I have tried to build a computer and I have heard that Am3 socket mobos don't work well with 1600 GHz DDR3 memory. The mobo I want is an AMD 990 FX. Ive also heard that certain processors don't like having 1600GHz memory either. Finally, I have also read that the memory will have more problems if you fill all four memory slots so I don't know if I should get 2x8gbs or 4x4gbs. I just want to know if my processor and mobo are compatable with Corsair 1600GHz ram. Thanks for all help.