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Hardware Thread, Trying not to panic.... USB power surge error in Technical; I've just come to test my new interactive projectors, plugged it into the computer but am getting a power surge ...
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    Little-Miss's Avatar
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    Trying not to panic.... USB power surge error

    I've just come to test my new interactive projectors, plugged it into the computer but am getting a power surge warning?! HELP!!

    Windows XP service pack 3
    HP DC7700s
    Last edited by Little-Miss; 30th August 2011 at 01:32 PM.

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    SYNACK's Avatar
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    Powered USB hub could help, do you have it plugged in to a rear USB port as these have more power.

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    SYNACK's Avatar
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    Oh and don't worry it does not mean it has been damaged just that it has demanded more power than required. Vista/7 gives you slightly more precise messages.

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    Little-Miss's Avatar
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    Its plugged in the back. Panicing as ive got 9 of these to setup and it looks like it does it on other machines too!!

    The only other usb device plugged in is a mouse!

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    SYNACK's Avatar
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    What kind of IWB?

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    Little-Miss's Avatar
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    Epson Interactive Projector...worked fine on a laptop...

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    SYNACK's Avatar
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    Hmmm, weird I'd try the powered USB hub to make sure. Is it on the same cable the laptop was, not a longer one tacked to the wall possibly suspectly by a butcher of an electrician - sorry projecting

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    I dont have one handy at the moment :/

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    Just FYI surge means not enough power, spike means too much power. It's a bit confusing as most people think a surge would be too much power.

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    Yeah but thats whats confusing me...

    The only other USB device is a mouse! Can't see how the projector is apparently draining all the power...

  11. #11

    SYNACK's Avatar
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    Quote Originally Posted by j17sparky View Post
    Just FYI surge means not enough power, spike means too much power. It's a bit confusing as most people think a surge would be too much power.
    Either way it should hopefully be cleaned up by isolating it on a nice dumb hub that can blindly chug on unaware of anything complex like current.

  12. #12

    SYNACK's Avatar
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    Quote Originally Posted by Little-Miss View Post
    Yeah but thats whats confusing me...

    The only other USB device is a mouse! Can't see how the projector is apparently draining all the power...
    Some PCs especially SFF ones can haveweak USB power systems and education stuff is notorious for barely meeting spec. Besides if you have it on a long cable this will chew a bunch of power all by itself.

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    Little-Miss (30th August 2011)

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    USB PCI card may help if you have any hanging around



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