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USB External Hard drive kills all usb ports

By Lightingbird
Jan 9, 2010
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  1. Odd situation that I have come across.

    One of my clients has a western digitial 500gb external usb hard drive. It has it's own power supply and was working fine for what I was told. Anyway, once it is plugged in all of the usb drives on the PC die. The usb mouse, laptop cooler, and usb speakers lose connection. After a quick reboot they all start working again.

    Now I know that when this happens its usually lack of power supply or a bad usb port. But any of them that I try it has the same effect. Also, it happens on my laptop as well when I tried to test it.

    Now before I tell them to consider it a loss and buy another external. Anyone with ideas?
  2. strategic

    strategic TechSpot Paladin Posts: 1,274

    There is one thing you fail to mention...
    Have you tried a different power supply for the drive?
    USB ports supply some of the power, but if it's own power supply is defective, it's not going to work.
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