I got the RRoD about three weeks ago and I sent it in. I got my Xbox back the other day, and after I have spent time playing it. I have notice that its not as loud as it use-st to be. Before it use to scream, now its a deep sound that I can barely hear. I just want to know what they do to it when you send it in, I always thought they just put a new processor in and send it back, but do they put in a new cooling system too?