DUDE! thats how i fried my ipod, my top two usb ports shorted and fried my ipod and usb stick.
I now just use the usbs on the mobo
I still dont know to this day whats the problem, one day they worked the next boom!
I now just use the usbs on the mobo

I still dont know to this day whats the problem, one day they worked the next boom!