All of the USB3.0 headers on my desktop just stopped working. My one USB2.0 on the front panel works fine. I updated all the drivers, deleted the drivers in the device manager and restarted and updated bios. Occasionally after restarting 2 of the 8 3.0 ports will start working and it's always the same 2 but eventually they stop again. All of the accessories work when plugged into another computer. Is it possible for a controller to just go bad?