I had Kingston HyperX DDR3 2000mhz and it never would run 2000mhz only 1888mhz. I think the Kingston ram is not high quality and I would never buy it again. G.Skill 2400mhz work's and I have 8GBx4 all slots filled and no problem with 32GB. It is chea...

Here is a Video showing different cards and SLI set up tested on Maximus V Extreme. 3-Way ASUS GTX660 Ti Performance Overview http://www.youtube.com/watch?v=UkNgL9VpyfY&list=PL13F5266778601CBA&index=8