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02-21-2012 11:50 PM
I've had an HP G60-230US Notebook PC for about three and a half years now, and all of a sudden tonight my USB ports decided to all stop working. I first noticed it when I tried to hook up my iPod to sync it and it didn't show up in iTunes. I unplugged my wireless mouse to see if the other USB port would work with no luck, and when I plugged my wireless mouse back in it wasn't detected either. I tried restarting my computer twice to see if that would take care of the problem but it didn't.
My notebook currently runs Windows Vista. On a normal day I'll have my external harddrive (WD My Passport Essential 500 GB), my wireless mouse (Microsoft Wireless Mobile 3500) and my Targus Chillmat with 4 USB hubs in the back plugged into my 3 USB ports. My printer is usually plugged into one of the Chillmat's USB ports. When I want to sync my iPod I usually unplug the Chillmat because none of the USB hubs on it will detect the iPod. At the moment my wireless mouse will still work if I leave it plugged into its USB port when I restart my computer, and all the chillmat is doing is cooling my laptop down.
Any help would be very much appreciated.
02-22-2012 01:47 AM - edited 02-22-2012 01:54 AM
You may have exceeded the available power capacity of the USB ports in your notebook PC too many times. That can result in non functioning (forever) ports. That is the specific reason that I recommend only using externally powered USB hubs.
You can check the current carrying capacity of the USB ports and see how much they are using via the device manager.
Open Device Manager and then right-click a USB root hub. Select properties and then the Power tab.
This particular system has many ports available.
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02-22-2012 06:45 AM
You may be right. All I know is I finally just turned my computer off last night and let it sit for about 6+ hours while I went to bed. I turned it on this morning, plugged in my external HD into its regular port and it was detected and recognized. But I'll keep this in mind just in case it happens again in the future.