Hi, I upgrated my old asus mainboard to this gigabyte mainboard. While it supports usb 3.0. but somehow the usb2.0 dosesnt works at all. I mean the 2 usb 3.0 at the behind are working but the USB2.0's arent. when i plug a usb, windows sees that a device is pluged in but cant reconise what it is. i tryed many ways and it seems that it isn't a software issue. ( windows 7 x86 / 64bit - windows xp - linux - Bios update with the @bios software - disabling usb3.0 and other divices under bios).
At last i pluged a PCI USB2.0 card and the usb2.0 on this cards are working so i think it could be a bios or hardware (the chip that controls usb2.0 ?? ) problem.
Any help ?