I can't seem to be able to. If I use one of my two USB 3.0 ports, the device does not get recognized upon boot (but does in Windows). USB 3.0 is enabled in the BIOS. If I plug the device into any other USB port it seems (all 2.0) it will detect it upon boot, and I'll be able to boot from it. Would this be a BIOS or motherboard limitation of some kind? I can't find anything about it on motherboard manufacturer's website. USB key itself is definitely USB 3.0. It's a Corsair Flash Voyager GT (like this one http://www.ncix.com/products/?sku=62950&vpn=CMFVYGT3-32GB&manufacture=Corsair) So is this "normal" or.. ?