USB device has exceeds the power limits of its hub port

Asked By Michaela Ford 10 points N/A Posted on - 04/05/2012

how come that everytime i inserted usb port it keeps on telling me "power surge on hub port: a usb device has exceeds the power limits of its hub port" what is the main problem? please help.. thanks! 

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Answered By Sollis Parallag 45 points N/A #104671

USB device has exceeds the power limits of its hub port

Hello Michaela.

The error is telling you that your USB port has a malfunction.  Based on the USB specifications, each port should be able to supply up to 500mA of current.  Anything higher than this and you will get the warning from Windows.  It is possible that the surge is caused by a faulty USB device.  To check, try your USB device on another computer and see if the same error will appear.  If you've already tested that your USB device is working fine then the only problem would be your USB port.  Use a low-power USB device such as a USB mouse and test each of your USB ports in turn to isolate the specific port (or ports) that is broken.

Unfortunately, broken USB ports are usually permanent.  If you find that you do not have any more working USB ports, your only options are to get a PCI USB card or replace the motherboard.

Good luck!

 

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• Posted on - 04/17/2012
• Question Category: Storage Misc