Hi, My motherboard is a 78lmt-usb3 The problem I am having is with a 1TB Samsung External HD that is USB 3.0 compatible, my new motherboard has two USB 3.0 ports on the back, I have installed all drivers for this, however on reboot of my pc it vanishes I can re-install the drivers from the disc and it seems to start working again, however after a few reboot's it's gone again,
The only error in device manager is for a via USB2.0 Hub and windows can't find drivers for it, if I point it towards the disc that came with my Motherboard it installs, that error goes away and the HD starts working in the USB 3.0 port, on reboot it's gone again. It works fine in a USB 2.0 port, it's worth noting my case also has a USB 3.0 port that is connected and not working either, it is powering the HD as the light comes on.