Here's another it's too loud vote. I have it on my 1.2 duron. It cools it fine, but the fan is 39dba, high pitched and whiney. It's actually the only fan I have in this case (upgrading to an antec sx1000 for better cooling soon) and it's louder than my sister's xp1600+ with the retail hsf, and 2 80mm sunon's.
I can hear this thing the moment I come in my front door. I can hear it from upstairs, the comp is downstairs. My parents have even complained about how loud it is. I told my mom that I needed to get an adapter to put the other fan on there. And she said, "Go get it now."
I'm gonna pick up a 60mm to 80mm adapter and throw one of those quiet panaflo's on there.