SLI rendering has gained a lot of popularity lately, even to the point where people are making SLI rigs of pre-SLI’ed cards like the 9800GX2 and the 4870X2. The problem is that drivers and motherboards aren’t really set up to take advantage of two cards. Sure, it works a lot better than one card, but Hydra feels that it’s time mobos got an integrated SLI controller that…