Looking at pictures of Newegg, I found two cards that use the reference PCB but with a down power socket. Most likely, they are compatible with the AX3.ARCTIC wrote:*This cooler is not compatible with graphics cards using a stacked power socket.
They are the following:
MSI N680GTX Twin Frozr 4GD5/OC
GIGABYTE GV-N680OC-2GD
I hope this topic helps someone and that more tips are posted.