Hi, I just have got my surface pro 4. It is a really fantastic device, I have no display crashes, freezes and battery life is quite good. However, I have one thing that 'concerns' me. During the Treshold 2 update, my fans were quite loud. After that, I haven't heard my fans kicking on(since I am doing light work for the moment). But when I am in a silent room, I just hear a little, small, quiet noise from the proccesor I think(I don't hear it when I am typing for example, so it isn't loud). I just wondered whether this is normal, because my surface 2 RT was quiet as hell. Thanks in advance!