I've read several threads about people's front USB 3.0 ports not working, however my problem is the exact opposite. Anything I plug in the front (using a Fractal Design Define XL) works great, however I can't get my Razer Naga, keyboard, gaming headset, anything to work in the rear USB 3.0's. I just got done downloading the latest Intel USB 3.0 drivers, I'm not sure where else to go from here.