CPU Fan very Loud

I just built a desktop with a phenom II X4 with a coolermaster cooler


http://www.newegg.com/Product/Product.aspx?Item=35-103-...


Everytime I start the pc it becomes very loud. It is by far the loudest thing in my pc. Typically they should slow down once it gets to windows however it doesnt. I stays at 3200rpm I downloaded speedfan and I can manually put it down to 2000 and it is a whole lot quiter and it still is cooling no problem. However if I restart the compuer I have to do it all over again. I tried looking in the bios but didnt find much. It is an msi board... If any one could help me it would be great.