Macbook 13'' - USB DRAWING TOO MUCH POWER (No Devices Attached)

Discussion in 'Mac Basics and Help' started by Stilatos, Dec 18, 2008.

  1. Stilatos macrumors newbie

    Joined:
    Dec 18, 2008
    #1
    Hello All! :)

    I constantly get the message on boot USB device is Drawing too much power. The Device will be deactivated

    and I can not use any USB devices. :(

    The message appears on Boot and both USBs have no device attached. Plugging the mouse i see that the red light does not even appear, no question about iPod-iPhone ... iSight, Keyb, trackpad, play fine

    The thing is that when I Bootcamp to XP and I unistall the devices, PnP sees them again and installs them making me assume that is a power issue or sth like that because the Motherboard still sees the 2 USB...

    I did PWR, SMU reset etc to no avail ...

    So, I have 2 questions the chips that control the power to the USB hub can be changed on a Macbook 13 or should I accept that I can not use my USBs ever again?:confused:

    Please give advice because in Greece they charge you even for giving you this information ...
     
  2. misterredman macrumors 6502a

    misterredman

    Joined:
    Oct 3, 2007
    #2
    Check visually the contacts of the USB ports. Maybe the device damaged the contacts, thus mking it draw too much power.

    I doubt you will be able to substitute the USB chip easily. Take a look here for what you can do yourself:

    http://www.ifixit.com/Categories/MacBook-13-Inch/86
     
  3. Stilatos thread starter macrumors newbie

    Joined:
    Dec 18, 2008
    #3
    Thank you misterredman

    Valuable site indeed....

    I am a little pesimisistic that nothing can be done though...
     

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