Only one fan, really, and you dare write that? It's like going into a subwoofer forum posting that one subwoofer is all that you need, ever
I have four Noctua 120mm fans in my desktop PC and I got no more place for any other fan

When idling (www browsing, reading mail, Netflix, etc) only the two CPU fans are running and the GPU is in fan-off while idling mode. Very quiet, and no dust buildup as the two fans on the Noctua CPU cooler blows down, cooling the chipset as well.