Got the need for speed (and a lot of money)? This is the driver you've been waiting for.
When the Nvidia GeForce GTX 480 and GTX 470 launched, it only supported SLI with three GPUs. While supplies of the new Fermi-based cards are still scarce, now those who find three cards not enough now have an upgrade path to add-in a fourth card.
Nvidia today released GeForce WHQL drivers version 197.55 that enables 4-way SLI for GTX 480 and GTX 470 cards.
Grab them at the links below: