problem of LOW voltage on USB ports of Intel 915GLVG mobos

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  1. - 10th January 2008, 05:03 #6
    mister_e's Avatar
    mister_e
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    yeah sure the on-board USB have a current sensor, not sure if a PCI card have it... if so, how better worst it is? I'll measure it here.

    As Darrel says, an external powered USB hub 'may' solve the problem. i don't get your point of auto-detection...

    But for sure, there's a current limiting somewhere, XP should warn you in case you overload it.

    EDIT: Measurement done here...

    My HP machine
    Load 5 Ohm..
    On board USB - 4.26 volts,
    PCI Cards 4.1 volt

    My intel machine
    On-Board 4 volt
    Last edited by mister_e; - 10th January 2008 at 05:32.
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
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