NVIDIA is enabling native support for 2 and 3-way SLI on Intel X58 based motherboards…without the use of any nForce 200 chips.
Any X58 motherboard maker can submit their board for certification, which will be done by NVIDIA. If the board passes, and the motherboard manufacturer agrees to pay a certification fee (NVIDIA would not reveal how much), then the board is certified and NVIDIA provides the board manufacturer with a key to place in its BIOS.
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Source: AnandTech
