It not that load compare to oh, say, a 747. Seriosely though, I forget about the noise myself and there are two running in a small room that I live in (dorm) and it doesn't bother me. There are some people who it does bother though, it comes to down to personal preference. If your talking for a heatsink I'd say try them, and if you don't like it then you can mount a 80mm fan in its place.