Usb 3 not working :(

I have an Asrock 970 extreme 4. I had installed/re installed the chip-set driver and neither my usb 3 and my front usb don't work. when i got my board it used to work but over time it just stopped.

Anyone got any ideas???

If your back USB works, check you cables inside the case.

If the do not work, try go back to earlier drivers.

ooops let me rephrase my self a bit. my back usb 2 works and usb 3 does not. And front panel usbs (they are usb 2) dont work.

thx it try to go back to older driversĀ