Your questions are hard to understand but I guess your asking about overclocking an AMD cpu on an Asus Crosshair MB and if 16 gb of Corsair Vengence ram will help or not?
The ram doesn't play much of a part in overclocking the cpu , it's more of a supporting part for the system aas a whole since if your overclocking the cpu to make your computer faster you don't want the ram slowing it down. So 1866 mhz ram is a good choice.