So, currently have a 2x4 GB set of Kingston HyperX Fury ram in my case. It's great all I need, however, I just a have a BRAND NEW set of Crucial Ballistix Ram that is 2x4 lying around. Never used, just have it. I have 2 empty ram slots, AND they are the same speeds, and same type of ram just diff companies. So, can I do it? even if it is minimal, to no upgrade might aswell right?