Socket 939 Motherboards compatible with WBs

I've been looking over the specs and picutres of various NForce3 Socket 939 motherboards. It seems like the chipsets on some of these boards are very close to the AGP slot and may pose a problem if a waterblock is used. Is anyone currently running a chipset water block on a socket 939 board?

I can tell you without a doubt that the DD Maze4 chipset block will NOT work on an Asus A8V.

i am using the DD Maze4 chipset block on the Msi K8N Neo2 Plat with no issues - tight but fits !

Thanks for the replys. Anyone else with experince?