According to the Gigabyte site FBb has the same date as F20e, but I tried it anyway. It says it's incompatible with my version of Windows. It must only exist for 32-bit systems. I also tried all the xHCI settings but nothing made a difference. After starting Windows, when I unplug the drive so that I can reconnect it Windows plays the sound of a disconnecting USB device, so it obviously knows it's there. It just won't load it until I manually disconnect and reconnect.