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Thread: Windows 7 restart - Motherboard debug code 05 - Hang




  1. #1
    spec is offline Member
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    Exclamation Windows 7 restart - Motherboard debug code 05 - Hang

    Hi All,
    I'm seeing a strange problem when I perform a windows restart. On shutting down it displays logging off as normal, then switches off the display, but the motherboard doesn't reboot. The debug code on the board shows "05" and it's stuck there forever (I've waited for 15 mins).
    The only way is to press the reboot switch on the mobo or power-off the power supply.
    Normal windows shutdown and Sleep works as normal; it's only restart that is impacted.

    I've tried clear CMOS and loaded the latest BIOS from the Gigabyte site - F6. (There was a tip on the ASUS forums about this approach)

    Anyone run into this issue before ?
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  2. #2
    stasio's Avatar
    stasio is offline GIGABYTE Elite
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    Default Re: Windows 7 restart - Motherboard debug code 05 - Hang

    It's BootBlock POST Codes...
    05 - KB init Initialized KBC

    Try to boot (just in the BIOS) without SSD/HDD....(or maybe video card).
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  3. #3
    spec is offline Member
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    Default Re: Windows 7 restart - Motherboard debug code 05 - Hang

    Quote Originally Posted by stasio View Post
    It's BootBlock POST Codes...
    05 - KB init Initialized KBC

    Try to boot (just in the BIOS) without SSD/HDD....(or maybe video card).
    Sorry mate, I didn't understand the above. The issue is not boot into BIOS. I get this when I restart the machine from windows which is installed on my SSD.
    I can boot into BIOS and windows just fine - no issues there, even shutdown works. It's only a restart from windows which results in this code.

  4. #4
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    Default Re: Windows 7 restart - Motherboard debug code 05 - Hang

    I think that Stasio is saying to boot into the bios and then exit the bios which will cause a warm boot, and see if there is a problem when warm booting out of the bios.

    When you try to restart from windows, note the exact time you click on restart.
    When you next boot successfully into windows, run the Event Viewer to see if there are error messages just after the time that you tried to restart from within windows.

    It sounds like your video was turned off but there might be a program that couldn't close and this prevents the restart from completing.
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  5. #5
    spec is offline Member
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    Default Re: Windows 7 restart - Motherboard debug code 05 - Hang

    Quote Originally Posted by profJim View Post
    I think that Stasio is saying to boot into the bios and then exit the bios which will cause a warm boot, and see if there is a problem when warm booting out of the bios.

    When you try to restart from windows, note the exact time you click on restart.
    When you next boot successfully into windows, run the Event Viewer to see if there are error messages just after the time that you tried to restart from within windows.

    It sounds like your video was turned off but there might be a program that couldn't close and this prevents the restart from completing.
    Thanks Stasio & profjim. I will check the event log for windows.
    For the BIOS warm boot, I've tried this many times, any saves and reboots from the BIOS always works.
    The Windows restart weather it's the first one of the day or even on a warm system, it's the same - usually lands in a debug code 05.

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