By default it runs at the bottom and is anyway quite noisy. Set its intervention in the BIOS and then it gets better. I set mine to run basic 25% and there one does not hear at all. Then in play, if a target temperature as 40-50 ° C, it begins to accelerate and you can hear anyway. As soon as the game finished, it is the basic rhythm so silent. Apart from that, it is rather effective.
