Yesterday I bought this RAM http://www.newegg.com/Product/Product.aspx?Item=N82E16820231689 It runs at 2133 MHz. However I cant find a Motherboard that runs at this speed and has 2x PCIe 3.0 slots. I also want my Motherboard to have at least NVIDIA duo-SLI. Can I run that RAM at for example 1600 Mhz, or is that not possible? Do you guys have any recommendations for Motherboards and maybe even CPUs for that?