Just a post to the many that are probably still annoyed with this problem. I sure wish I had done something alot sooner! I finally called Dell the other day and complained about the fan noise in my 8200 from my Datech fan. Sometimes it was fairly quiet and sometimes it sounded like an airplane taking off. Well anyway, Dell sent a new fan (NMB) the following day and I just took out the old and put in the new. What a difference from such a simple thing! Now I can barely hear anything coming from the computer. And I have 2 120GB HDD's running in there too. Now I basically need to put my ear right next to it to hear that the computer is on. Before, I could hear the thing from the other room. Sure wish I had followed the advice I kept reading here on the forum much, much sooner.