Windows 8 and 8.1 Forums

Short system lock then restart - unable to locate cause

  1. #1

    Posts : 2
    Windows 8.1 64 bit

    Short system lock then restart - unable to locate cause


    I have recently bought a new system running Windows 8.1 64 bit.

    After I played Cities in Motion 2 on Steam the problem first occurred. The screen freezes and one or two seconds late the system restarts. There is no BSOD.

    Yesterday I played all day with no issues but today the problem happens regularly, even when just browsing the internet in one window.

    I am unsure what may be causing this and would welcome any help you can offer. Please find attached the SF Debug tool zip file.

    If you need any further details please let me know.

    The system is still under warranty but I thought I would try here first before going back to they system builder.

    Thanks in advance.
    Attached Files

      My System SpecsSystem Spec

  2. #2

    Posts : 660
    windows 8.1

    The first dumpfile mentioned Probably caused by : AuthenticAMD, the analyse gives a WHEA_UNCORRECTABLE_ERROR (124)
    A fatal hardware error has occurred.

    The important thing to note in this is the following:


    This could mean a lot of things, however it could mean the RAM in slot 4 of the board is faulty.

    Another very important thing to note is in the DUMP itself, but not the WER structure output, is this:

    MODULE_NAME: AuthenticAMD

    IMAGE_NAME: AuthenticAMD



    What this means is this was NOT caused by software, but an IRQ request or another hardware related issue did. Essentially there was a bus communication issue (CPU, RAM, video card, PSU , etc).

    The second dumpfile is Probably caused by : atikmdag.sys ( atikmdag+c48bb )
    This is the driver for your AMD videocard, could be software or hardware related.

    What I recommend:

    You mentioned that your PC/system is still under warranty, so return it asap back to your system builder.


    based on info from
      My System SpecsSystem Spec

  3. #3

    Posts : 2
    Windows 8.1 64 bit

    Thanks for your quick reply.
      My System SpecsSystem Spec

Short system lock then restart - unable to locate cause

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