I am using Gigabyte GA-Z270X-UD5 with windows 10, tired connect CIC when windows showing unknown USB device is say cannot connect/device not found(forgot the exact wording) and i have tired connect on USB 3.0(front and back) & 2.0(internal and back) port with XCHI hand-off disable or enable, searched online such error may fixed by replace USB cable but still cannot fixed after solder new usb cable and i have test it using milt-meter to make sure no short circuits.What's you motherboard? What BIOS option did you try out?
Which version of Windows are you running?
Did you install you motherboard's USB drivers?
I got mine running on various motherboards from Asus, Aopen and iBase, notably:
I'm running Windows 10 now but it used to work just fine on Windows 7 too.
- Asus P8Z68 DELUXE/GEN3 - though not on the USB 3 ports if I remember well.
- Asus Z97-WS - had to disable xHCI in BIOS.
Did you try if CIC could connect to the display despite the USB errors?
Did you try USB 2, USB 3 ports, front and back USB ports and internal USB ports?
Did you do an online search for that issue on your motherboard, brand or USB controller model?
Give yourself enough time to investigate the issue.
Did you actually solder anything? If that's the case make sure that you don't have any short circuits.
Just last step have not done is, test it on other PC without USB 3.0........
Thanks for the advice