Asus Rampage v Extreme can you use the M.2 if you 3-Way SLI it?

Solution
Which CPU are you using? If it's the 5820K, you'll struggle to get 3 way SLI set up at all, let alone with an M.2 SSD taking up valuable PCIe lanes. The 5930K and 5960X should be fine though.

Woody