Quote Originally Posted by Ket View Post
It sounds like your board is perfectly fine you are just having some hardware compatibility issues. Firstly, leave legacy support for USB3 devices disabled as that solves half your problems in one go. Theres really no need to have legacy USB3 support enabled anyway unless you are using a USB3 keyboard or something. I've made a note of your mouse not working in the UEFI and will ask the guys if its a compatibility problem or a limitation of the UEFI. Quickest fix: use another mouse
this seems to be an uefi problem. i've disabled legacy usb support for the usb3 ports and simply plugged my mice in it. the keyboard is connected to the usb 2.0 port with legacy support enabled. this works fine. no problems at all... but hopefully there is an uefi update soon that solves this bug!