I have an ASUS F1A75-M LE motherboard and the built-in usb 3.0 ports show with a yellow exclamation point in the device manager. I tried the usb ports by connecting the keyboard and mouse which worked on the usb 2.0 ports - no go. I'm using Windows 7 Professional 64 bit. I've downloaded the usb 3.0 booster driver from the ASUS website, to no avail.