Nvidia SLI works on Intel boards, but only with Quadro cards
 

We found out that Intel chipsets can and do support SLI. Nvidia has enabled its cards to run on Intel chipset based motherboards, but only on the professional X5000 chipset combined with a Quadro 4600 or 5600. Our sources had a chance to play with such a platform and two Quadro cards are able to make a preview or render in SLI mode.

http://www.fudzilla.com/index.php?op...27&Ite mid=34