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Thread: USB Hub not enough power

  1. #1
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    USB Hub not enough power

    Hey all something weird just happened???

    Had my machine for 2 years now and no problems until now!!!

    I recently upgraded to wanadoo broanband and they kindly sent me a USB ADSL modem, Which meant I had to got out and buy a hub as my mobo only has 2 ports on the back.
    For the last 5/6 weeks I have had my modem plugged directly into the PC and the hub filled with my mouse and my hiMD player and I had no problems, Until I booted up this morning and windows kindly notified me that the USB hub had exheeded (sp) in power output.

    Does anyone have a solution as to why this has happened just now?

    If it helps the power requirements are as follows:

    HiMD 500 mA
    Crappy mouse 100 mA

    Any help would be gratefull

  2. #2
    Vive le pants! directhex's Avatar
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    • directhex's system
      • Motherboard:
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    each usb port on a pc can output a set amount of power - 1000mA i think

    however, if you plug in a hub, then that 1000mA is split between the hub's own power requirements, and the devices plugged into it

    if you've gone over-power, then you need to either rearrange your devices to avoid the drain on the end of the chain, or get a powered usb hub which you can plug into the mains (and therefore can offer the full power output on every port)

    also note that usb adsl modems are VERY high drain, some will even burn out some motherboards (via kt133)

  3. #3
    Nox
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    • Nox's system
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    yep, grab yourself a powered usb hub.

    Does your MD player charge itself up via the usb? if so, that may account for why its just started and wasn't previously. (was charged before, and now drawing more power as its charging)

    pure guesswork tho.

    Nox

  4. #4
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    max per port is 500mA I think.
    Wierd that its just started now.
    Twigman

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