Question about MSI RS482M4-ILD Motherboard

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USB Ports Stopped Working

When speaking with my daughter, she advised all USB ports have stopped working, and the computer running very slow.

While speaking with her, I asked she run Task Manager.
With no programmes running the processor was at 100%, I asked her to enter the BIOS and disable USB, by doing this the processor dropped to 3%.

The time the USB's began to fail is as follows -
One of the ones in the front stopped working about 6 months ago. The other one stopped working about 3 weeks before all the trouble started, (computer running slow). When that one stopped working (other front), we started using one of the back 4 ports. One of the back 4 had the printer connected the other had the mouse which left 2 ports to use. All 4 of these stopped working at the same time about 2 weeks after using them.
In the BIOS the following changes were made -
I have turned off 3 USB root hubs. The USB PCI controller is on and 2 standard USB is on.
The USB in the BIOS is now enabled and the computer running OK except for no USB ports.
I would appreciate some advise.

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  • 1 more comment 
  • kevsim Jul 16, 2008


    Thanks for the information.

    The only BIOS available is the same as existing.

    A little more information -

    The 2 USB’s that are on are standard open HCD USB host controller. If I go to device manager click the 2 USB that are the same then click properties it comes up under general tab

    Device type: Universal serial bus controller

    Manufacturer: Standard USB host controller

    Location” PCI bus0, device 19, function 1

    The other USB that is turned on is and 1 standard enhanced PCI to USB host controller. When you click that under properties is says

    Device type: Universal serial bus controller

    Manufacturer: Standard USB host controller

    Location PCI bus 0, device 19, function 2

    I would appreciate a little more advise.


  • kevsim Jul 16, 2008


    Because of the computer running like a snail and no USB ports along with the processor running at 100% System, a full check for Virus, Adware and Spyware was carried out, nothing was found.

    It was the decided to reinstall the operating system but first use "Dariks Boots" to completly clean the hard drive before reinstalling.

    This took a very long time, presumably because of the processor running at 100% System.

    Upon completion the processor was still running at 100% and no USB ports,

    The above was then carried out re switching off the USB's.

    With the above information provided, are there any other possible fixes?


  • kevsim Jul 17, 2008


    Is there any software that could be run for testing the Motherboard for USB problems?




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Check in and see if there is a firmware upgrade for that particular motherboard.

Posted on Jul 14, 2008

  • 1 more comment 
  • Tim Babcock
    Tim Babcock Jul 17, 2008

    Check in the BIOS setup. Make sure that all caches have been enabled. Make sure all information in there is correct as well. Anything that does show up hardware wise could be suspicious.

  • Tim Babcock
    Tim Babcock Jul 17, 2008

    Correction, anything that doesn't look right hardware wise could be suspicious.

  • Tim Babcock
    Tim Babcock Jul 17, 2008



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