Locating nVidia reference board numbers
After scratching my head for days to try to ease consumer confusion with all the different revisions available for reference VGA boards, I inspected a board and found the revision number printed just below the nVidia logo. Once the board revisions numbers (P891, P892, etc..) are made public, it then becomes relatively easy (need magnifying glasses depending on your age) to identify the boards by simply looking this up:
http://www.swiftech.com/assets/image...renceboard.jpg
I hope this helps. Now all is left is for all OEM vendors to identify which reference board their solutions are compatible with. Swiftech is.