If you're brand new to the DIY PC building scene, you may think Intel chipset-based motherboard owners have always been able to run multiple Nvidia videocards in SLI. You'd also be wrong. It was less than six months ago that Nvidia officially announced it was licensing its SLI technology to several top-tier motherboard makers for Intel's X58 chipset, in exchange for a fee. So we can't imagine anyone over at Nvidia doing cartwheels when end-users find a way to enable SLI on non-SLI certified boards with a relatively simple BIOS hack.
Citing an article in Taiwanese magazine PC Home Advance , TweakTown reports that not only is it possible, but it's been demonstrated on Gigabyte's EX58-UD4 motherboard. The magazine downloaded the latest F6 BIOS for a slightly different model, the EX58-UD4P, which comes with official SLI support, and slapped it on the less expensive non-SLI board.
Because the model numbers are different, the magazine noted the unsupported BIOS can't be installed using the built-in QFlash utility, and instead requires using the DOS-based SPIFLASH utility. Still a relatively easy hack considering no physical modifications to the board itself need sto be done.
It's unclear whether there were any undesirable side effects from using another board model's BIOS in place of the correct one. It's also unclear whether Nvidia will take measures to prevent this and future BIOS hacks from working with future driver releases.