This is hopefully a simple question. When you disable a USB port at the BIOS level, or if it is disabled by group policy/at the OS level, does it still provide the +5VDC power on pin 1? I ask because of an amusing issue where a coworker tried charging his cell phone using a USB cable off of the front bezel while he was in the datacenter. I haven't really been able to find the answer as to whether or not the disabled port will still provide power on pin 1 or not.
Any thoughts would be appreciated.