Only then will the case fans increase to draw cool air in and exhaust warm air out the back and top. Until that is, the hot air from GPU causes the AIO coolant temp to rise due to the ambient case temperature as the GPU heat rises to the top of the case. As the CPU temp rises (and in turn the coolant) the case fans will ramp up.īut what about the hot exhaust air from my GPU? If I'm gaming and almost all the load is on the GPU, then the CPU temperature won't rise significantly so the case fans don't ramp up.

Three top exhaust Corsair ML120 fans, connected to Commander Core, speed is controlled via iCUE, based on AIO coolant tempĪs you can tell, all the case fans are linked (directly or indirectly) to the CPU temperature.

Three front intake Corsair ML120 fans, connected to Commander Core, speed is controlled via iCUE, based on AIO coolant temp.

Rear exhaust fan, PWM connected directly to chassis 1 fan header on MB, speed is controlled via BIOS, based on CPU temp.

It's the latter that has me the most interested. 1) A leaner application than some of the bloatware that controls fans (iCUE, AISuite, Armoury Crate, etc)Ģ) Ability to link case fans to multiple temp sources, simultaneously

Fancontrol