Upgraded to 12900k and 980 pro 2TB. I also have a 970 evo plus 1tb. Heard it’s better to separate OS and files/games. Should I install my OS on the 970 evo and install games on the 980 pro? Also which m.2 slot should each drive be install in? The top m.2-1 is a gen 5 and the other 2 slots are gen 4