I was planning on getting the i5 6600K with a Asus Strix H270F, is it only capable of supporting 2133MHz ram or am I able to use 2400 or possibly higher MHz of ram? Yes Why would you buy a H270 board with that processor when for the same price you can buy a Z170 for your processor that can be overclocked. Yes Why would you buy a H270 board with that processor when for the same price you can buy a Z170 for your processor that can be overclocked.