Another success on an ASUS P5b Deluxe wifi/AP, with Gainward gtx 260 GS & BFG maxcore, not amazingly fast but I'll tweak a bit, I suspect the main problem is the 2nd slot only being x4. Installed easy enough once I got the stupid motherboard to recognise both cards, this involved moving the cards to different slots a few times, one problem I know have is my normal PCI slots don't work. Installed graphics drivers then rebooted, then set coolbits to limit the Gainwards memory as it has 1792MB, ran afterburner to sync speed, rebooted, ran slipatch 1.5, rebooted and sli appeared in the nvidia control panel. I'm now considering getting a Gigabyte x48 motherboard for the two x16 slots. Thanks for slipatch! P.S. - Also bought an msi flexible sli bridge which I assume is working fine.