If you have Athlon II X4 or AM3/3+ this heatsink and fan are inadequate !!!
Art Vuilleumier, Amazon
2 May 2015
Summary: Although item delivered appears to be is as advertised, this fan and heatsink are totally inadequate for anything over a 45 watt CPU it will not cool your AM3/3+ CPU adequately at all. AD says that it will cool up to an Athlon II X4 BUT it will not.
Summary: Why didn't I buy these months ago. I have an older server running as a desktop machine with the server class AKA ear-shattering-loud CPU fans. I have two of these in this box now and it is very quite. Not silent but damn close.