Activating NVIDIA SLI on all motherboards, detailed HOW-TO

Despite the small current list, this modification allow to run SLI on ANY chipset, and not just Intel or NVIDIA. Technically SLI can be enabled even on a Motherboard with an AMD Chipset. Of course, board must have two or more PCI-Express slots for graphic cards.
Check this In-Depth Guide @ xDevs

Bear with me on the quality of the translation, please...