I ordered an Enthoo Luxe case along with a Noctua D15s to house and cool a gtx 980 and i7 6700k. The default configuration is a 200mm intake in the front with 140mm exhausts on the top and back. The stock setup seems ok to me, but I'm willing to spend a bit extra if a fan controller or more fans will significantly impact noise or temperature levels. Any input on what setup worked well for a similar build?