On Sat, 16 Aug 2014, Ed Vance wrote to mark lewis:   
      
    EV> The LED on the USB cable went Off as I expected it to do.   
      
    EV> The only other thing I thought of when I was turning the box Off   
    EV> (Kibernating) was the USB cable gets its power from either the 12   
    EV> volt or the 5 volt supply, Maybe the other power supply still has   
    EV> some charge to it that is doing something while I turn the UPS Off.   
      
   yes, that is also a possibility... many usb hubs that i'm aware of do not use   
   diodes on the power lines so the power from the hub also flows back into the   
   computer... a friend's dell system had problems due to a usb hub like this...   
   we always had to unplug the usb hub before trying to turn the machine on or   
   reboot it for any reason... it was quite aggrivating...   
      
   )\/(ark   
      
    * Origin:  (1:3634/12)