It's a great sli board for a q6600. The voltage options in the newest bios are great and if it had a bit more fsb voltage (vtt) I think it would be perfect but it can run the quads at 3.6ghz on decent air easy. I see a few complaints about the x-fi but it's always worked ok for me even with xp64. I like that it can run the mem with tight timings and 1T with good kits and the nvidia chipset being able to run unlinked to stay at 800 is great for me because I do like to try and keep the timings tight as possible. 3 months ago I would not have recommended this board to anyone because of the bios issues but now msi has really shown they support this product with the latest releases.