The guys at AnandTech have the scoop on how you may be able to save 50 bucks or so on an SLI motherboard. They’ve successfully converted an nForce4 Ultra chipset into an nForce4 SLI by closing a single resistor pack on the chip package. This works with the DFI motherboards we saw at CES, at least. Of course, NVIDIA seems ready to fight such tricks in its video drivers, but it’s starting to look like the cat’s out of the bag now.