I´ve created one topic about my motherboard ( Asus rampage IV extreme ) and i´ve being experiencing some dificulties, the motherboard shuts down the USBs ports randomly ( 3.0 and 2.0 ), the 2.0 usb ports function for a while when i´ve restart the pc but the 3.0 don´t, only pluging again. I´ve tried to update my BIOS and i´ve changed my keyboard and mouse, i´ve tried to change my processor coler as well, the video card, clear CMOS, and to reinstalll the windows 8, but the problem persists and no one know how to help me. What can i do ?