The usb composite device has exceeded the power limits of its hub port

my laptop alerts me THE USB COMPOSOTE DEVICE HAS EXCEEDED THE POWER LIMITS OF A HUB PORT whenever i connect my modem
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  1. Quote:
    my laptop alerts me THE USB COMPOSOTE DEVICE HAS EXCEEDED THE POWER LIMITS OF A HUB PORT whenever i connect my modem

    Do you have other USB devices running at the same time that do not have their own power supply ?
    Try disconnecting them if you do. USB hub only puts out so much power.

    This article explains it. http://answers.yahoo.com/question/index?qid=20071110113712AAYHpXJ
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