Even though I am a tech enthusiast for years I havent fully undestood something about ram speed. I am gonna build my first pc and i will be getting the i5 8400 which supports up to 2666mhz. I am going to combine the cpu with a Gigabyte z370 aorus gaming ultra mobo. The mobo suggests up to 2666mhz standard and higher speeds but with oc. Are ram modules with more than 2666mhz going to work? Thanks