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Thread: GA X79 UD3 - Windows 8.1 USB ports stop working on random...




  1. #1
    Join Date
    May 2014
    Location
    England
    Posts
    2

    Default GA X79 UD3 - Windows 8.1 USB ports stop working on random...

    Hello everyone...
    This is the second time I am forced to install a fresh copy of 8.1 because of the USB problem:

    All of a sudden, out of the blue, no reason - USB ports stop working. A reboot will do nothing, as my USB mouse and keyboard work all the way before the splash screen and then get disabled.

    They work for BIOS, and they do work if I put the Windows CD in to start recovery, and they also do work if Windows 8.1 does an auto repair of its own due to multi boot ups.

    They just get disabled on Win 8.1 Splash screen, and of course I can't even log on to the system since neither my keyboard nor my mouse work...

    I read somewhere that if I disable XHCI, or somesuch in BIOS, it may resolve. I tried, in fact I tried every possible combination but nothing worked.

    Freshly installing 8.1 fixes the problem altogether.

    Oddly enough I like 8.1 and I don't want to revert back to 7, but I might do if this goes on.

    This place is my last hope - anyone know how to deal with this or why it even happens? Thanks :(

  2. #2
    Join Date
    Aug 2009
    Location
    Birmingham,Great Britain
    Posts
    9,250

    Default Re: GA X79 UD3 - Windows 8.1 USB ports stop working on random...

    running latest mb bios? and usb3 drivers?

    also looked in power profile/change plan settings/advanced and turn off usb selective suspend? (in windows power saving)
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  3. #3
    Join Date
    May 2014
    Location
    England
    Posts
    2

    Default Re: GA X79 UD3 - Windows 8.1 USB ports stop working on random...

    Quote Originally Posted by wazza300 View Post
    running latest mb bios? and usb3 drivers?

    also looked in power profile/change plan settings/advanced and turn off usb selective suspend? (in windows power saving)
    I will try all this, as well as stop updating 8.1 altogether...

  4. #4
    Join Date
    Feb 2014
    Location
    Cambridge, Ontario, Canada
    Posts
    1

    Default Re: GA X79 UD3 - Windows 8.1 USB ports stop working on random...

    I have struggled with a similar issue for a long time, with random keyboard and mouse disconnects. The only way I found to fix it was to go to device manager right click on all the usb root hubs and uncheck allow the computer to turn this device off to save power under power management.

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