not wanting to contradict a forum master but that answer patently ain't true.
just cause a board has a certain chipset in no way means it'll take everything designed for it.
if that was the case, Zalman wouldn't have a compatability chart on their website for 775 socket boards.
the 9500 and 9700 coolers have certain requirements regards clearance and space around it.
I may have been out the industry for a while, but even years ago when custom stuff like this started coming out, abit and supermicro in particular were chronically guilty at putting capacitors and all sorts right next to socket mounts for CPU's making it difficult for some coolers to fit on the board.