I have a GTX 960 and AMD 860K with 8GB of Ram and am noticing low GPU and CPU usage (on all four CPU's) while playing games, I don't know if its just simply bottlenecking or if there is something I can do to increase the usage of them. I have tried setting the priorities on the games to High and Real time but obviously that's not going to help very much. The GPU usage was about 59% and never hit 60% and the CPU's usage was typically 50-70%