I'm planning to buy 3200mhz cl16 probably crossair , Asrock a320m , will it run at 3200mhz at default, 3400g supports only up to 3000mhz, but I have seen people running rams in 3200mhz. Also what is xmp, is that a ram thing or a motherboard thing. And i saw that xmp is for intel but how it works...