Re: OpenGL performance issues on SLI'd GeForce 8800's
The 'PAT index 2....' messages just point to an issue with how PAT is setup on the CPUs, which is what is causing the poor performance. I also noticed in your dmidecode output that you're using some kind of 'reference' or sample motherboard from Tyan. Is the 'other' system that has production quality CPUs using the same motherboard, or a production quality board?
Does this also reproduce with an official SUSE kernel?
The fact that no one else has reported this problem (and there are clearly a decent number of people using GeForce 8800 cards in SLI) really leads me to think that something in your environment is causing this, and not a driver bug. If you could provide otherwise that would be great.