USB Ports stop working

Hello everyone!

Threadname generally explains it all.
All my USB Ports just stopped working, weird part (for me) though is: the USB ports that were still connected still work.

Yesterday i tried to plug in a USB drive which didn't get recognized by any port, tried to plug in another USB device, also didn't work.
Tried to unplug a device that was still plugged in, and use that port, also didn't work. Replugged the device that was still working, now this 1 isn't getting recognized, tried doing that last step on another, same problem.
So basically i'm stuck with my mouse being the only device still working on a USB port but afraid that when i unplug it this will be gone aswell.

-Tried unplugged the power supply for a while (6 hours in my case) which seem to work for alot of USB problems, didn't work.
- Ofcourse reintalled the drivers, didn't work.
So i'm kinda stuck here and hope anyone is able to help me out  

I've got an ASUS Sabertooth 990FX motherboard and a Corsair GS500 power supply, If there is anything more you want to know about my specs just yell.

Thanks