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

[Stilatos]

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?

Please give advice because in Greece they charge you even for giving you this information ...

 

[misterredman]

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

 

[Stilatos]

Thank you misterredman

Valuable site indeed....

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