Ok download ASM Controller , Chipset update and all done. Still the external drive dont work. Freezes the PC.
I downloaded the USB 3.0 update driver and I get this, dl.dropbox.com/u/5128006/USB-3.0.jpg And you can see my system information here, dl.dropbox.com/u/5128006/resources.jpg
As i said , I have already tried everything . Applied for a replacement today . I will never invest again on a windows machine . My Mac Pro is the best . Never had any issues in his lifespan.