Hi there, I encounter this issue in other non intel motherboards too.. So for starters you didn't mentioned BIOS version of your motherboard.
So first flash the latest one 107.
Note: if possible use express or iflash2 method to flash BIOS.
Now if you already have latest BIOS version & your problem still there , then open CMOS pressing "F2"
look for option named "USB optimization" check if its disabled or enabled . tweak with option. It may resolve your issue.
Note : I don't have this motherboard right so i am not quite sure under which tab this option is. but if my memory serves right check under the 3rd or 2nd last tab.