I will let you see a little into my world. I have been folding with my GPU, so I need some airflow through my chassis.. don't worry, it isn't loud, I could sleep on the couch no problem
But I loaded my CPU up too. Granted, he does have 500MHz on me, but in the grand scheme of things, it really isn't that much. Also, I made sure that my CPU would achieve maximum load, while he was just running a game.