Cowboy, it isn't rocket science in there, just shut it down, after you figure which one of a possible 3 fans it could be, shut it down, pull the plug, pull the side cover off, and take out the 2 or 4 screws that hold it in, and head for Radio Shack, if you like what you have, and want to stay with it, 10.00 bucks will make it quiet, I made the mistake of going from XP, to Windows 7, never did get all my good stuff back where it was supposed to be, now I'm back with XP, and everything is where it used to be, if you're like me, just surfing, personal stuff, Ebay, Google, IOW, not a hard core gamer, just solitare, and pinball, 10.00 bucks and you're happy again. Bob