USB faulty?

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USB faulty?

To prevent damaging your computer, the USB device drawing too much power has been disabled. Other devices may have also been disabled. When you disconnect the device drawing too much power, your other USB devices will be enabled again.

now this happens ever time i turn on the computer andno i dont have anything plugged into the usb any of them...also is there such a device as firewire from the macbook pro 13" to a hub that can access usb drives etc?

Hardware Overview: bought Feb 2010

Software Mac OS X Lion 10.7.5 (11G63)

Model Name: MacBook Pro

Model Identifier: MacBookPro7,1

Processor Name: Intel Core 2 Duo

Processor Speed: 2.4 GHz

Number of Processors: 1

Total Number of Cores: 2

L2 Cache: 3 MB

Memory: 4 GB

Bus Speed: 1.07 GHz

Boot ROM Version: MBP71.0039.B0B

SMC Version (system): 1.62f7

Serial Number (system): W8******ATM

Hardware UUID: ****

Sudden Motion Sensor:

State: Enabled

iPod touch, iOS 4.2

Posted on May 9, 2013 10:03 AM

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Answer 1

May 9, 2013 10:09 AM in response to Dean4e

Are you using a powered usb device? If not, you should be.

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Answer 2

Dean4e Author

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May 9, 2013 10:13 AM in response to Baby-Boomer-USofA

nothing plugged into the mac book

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Answer 3

May 9, 2013 10:23 AM in response to Dean4e

Dean4e wrote:

nothing plugged into the mac book

You previously stated:

this happens ever time i turn on the computer andno i dont have anything plugged into the usb

When you get the usb error message, you are now saying no devices including the usb hub are connected to your MBP?

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Answer 4

Dean4e Author

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May 9, 2013 10:30 AM in response to Baby-Boomer-USofA

Thanks for your reply maybe I did not make it clear I get the error when nothing is plugged in to the macbook, and ever time i boot the nacbook this disables the usb ports .

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Answer 5

May 9, 2013 10:44 AM in response to Dean4e

Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.

System Management Controller Reset

HT3964

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