have you ever try doing this on a7n8x-x with athlon 2700+.
IT IS FUCKUNG HARD TO DO. i was almost breaking my mb doing this. DAMN they realy dont want the fan to fall down.
i will never be able to take it out now, forget it.
To install or remove an hsf for an athlon cpu you should use a panel driver. This is an electricians small slotted screwdriver. It has a very long shaft that is helpfull for access and leverage. The small tip fits in the grove of the hsf very tightly.