Quote Originally Posted by Flesh420
asus a8n-sli basic nforce4 mb

And i tryed to clean it out but it didnt do anything. Btw it used to do it and i would tap my heatsink fan cause i thought that was it and it would fix it. But no i try the same method and it will fix it for a second and it will go back to buzzing and not rotating properly. I dont know why me tapping my heatsink fan would fix the North bridge fan but what ever.
This should hook you up. Double check that it's the right fan for your mobo but I'm pretty sure it is. Maybe one of Newegg's techs can verify. $4.99 plus $4.99 for 3 day shipping.

http://www.newegg.com/Product/Produc...118-214&depa=0