Really you can't work with the fan noise. At my last job I had 2 racks of servers and it eventually got to me. Everything about the office I had was just horrible to deal with after years of work. That was one of the main reasons I left. There was suppose to be expansion to another floor, but when 2 years went by and that wasn't happening I got the clue that it could be many more years before I really had some serious expansion room. Not having this expansion room however did not slow down the buying of servers though. Ugh. I really enjoyed the people and the actual job, but my work area just made me have to get away from the place.