Z68XP Ud5 usb3 not working with windows 8.1

[Syldegil]

Hello

I got a Z68XP UD5 mobo and the usb3 is not working with windows 8.1

with a fresh install of windows 8.1  it s not working .

and if i install the driver for windows 7 (the only one that seems to exist)  the bus are detected but it s marked : not functionnal .

Anyone got a clue on how to make it work ?

thank in advance for your helps

[dmdilks]

I don't know if this will help: http://www.drivers-download.com/en/downloadlist.php?id=90

[Syldegil]

thank but no .

in fact the chips of my mobo is the NEC uPD720200  and the last update was : 2011-12-30  ....

any one else got the problem and found the solution ?

[Syldegil]

found the solution myself :

you need to upgrade the firmware of the NEC uPD720200   

here you got firmware and drivers working for me

 http://www.station-drivers.com/index.php/listes-constructeurs/72-nec-renesas/42-renesas-nec

Good luck