Because at first, the Ultra chipset ccould be modded to become a SLI chipset, enabling SLI for the Ultra.. But nvidia answer to that y disabling this capability in their drivers.
And when you know that game profiles has to be programmed in drivers in order for SLI to work with the game, you need to update drivers to stay compatible with current games.
So, either you mod the chipset to have a fake SLI mobo and use oldest drivers and no support for current game or you update drivers, but have the fake SLI disabled and then worthless..
So, it is now a lost-lost game ...
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