So I'm about to build my first custom pc ever and I want to make it really silent. The Define R4 looks really well silenced with all the sound dampening material and that. So anyone has some comparison between the windowed version or the non-windowed --> Is it that much louder WITH the window that you can clearly tell, or not. And for the noise, if u have the stock fans running at normal rpm (I don't know what that is :s) anyways, will you hear it like 10 feet away? I mean that, is it that silent at 10 feet that you can sleep with the pc on ? I just don't wan't to disturb my girlfriend while she tries to sleep :-D