Can't get USB 3.0 to work

[burtmakai]

Can't get USB 3.0 to work.

Board is a Gigabyte z170x-Gaming 7

They worked fine in El Capitan.

Any ideas?

 

[wtgserpant]

Can't get USB 3.0 to work.

Board is a Gigabyte z170x-Gaming 7

They worked fine in El Capitan.

Any ideas?

I would say give this a try. Its specific to USB changes in Sierra https://www.tonymacx86.com/threads/usb-new-raise-port-limit-patch-for-macos-10-12-sierra.202329/