random BSOD, BCCode: 1000007e


  1. Posts : 6
    Windows 7 Ultimate x64
       #1

    random BSOD, BCCode: 1000007e


    Hi there,

    Need help with this random blue screen please. I suspect it happens when PC goes to sleep (it should after 30 minutes of being inactive) but not sure. When I start the computer after crash I get the following:

    Problem signature:
    Problem Event Name: BlueScreen
    OS Version: 6.1.7601.2.1.0.256.1
    Locale ID: 3081

    Additional information about the problem:
    BCCode: 1000007e
    BCP1: FFFFFFFFC0000005
    BCP2: FFFFF80002E8B5B0
    BCP3: FFFFF880009DE8D8
    BCP4: FFFFF880009DE130
    OS Version: 6_1_7601
    Service Pack: 1_0
    Product: 256_1

    Files that help describe the problem:
    C:\Windows\Minidump\071014-31281-01.dmp
    C:\Users\gera\AppData\Local\Temp\WER-80703-0.sysdata.xml

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    Thanks in advance.
      My Computer


  2. Posts : 3,904
    Windows 7 Ultimate 64-bit
       #2

    Okay this is quite a complicated BSOD.

    Firstly:

    Code:
    *** WARNING: Unable to verify timestamp for CMUACWO.sys
    *** ERROR: Module load completed but symbols could not be loaded for CMUACWO.sys
    I personally have never heard of this driver. After a Quick Search online i was able to find this.

    Code:
    Installation Path	ID:0421939 C:\Windows\system32\DRIVERS\CMUACWO.sys
    Description	 C-Media USB Audio Class Driver
    Version	 7.0.0013.219 built by: WDK_6001.18001
    Company Name	 C-Media Inc.
    I would like you to run Driver Verifier.

    Driver Verifier - Enable and Disable

    As i said there are multiple things flagging up in the DMP's. We will take one at a time.
      My Computer


  3. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #3

    HarriePateman said:
    Okay this is quite a complicated BSOD.

    Firstly:

    Code:
    *** WARNING: Unable to verify timestamp for CMUACWO.sys
    *** ERROR: Module load completed but symbols could not be loaded for CMUACWO.sys
    I personally have never heard of this driver. After a Quick Search online i was able to find this.

    Code:
    Installation Path    ID:0421939 C:\Windows\system32\DRIVERS\CMUACWO.sys
    Description     C-Media USB Audio Class Driver
    Version     7.0.0013.219 built by: WDK_6001.18001
    Company Name     C-Media Inc.
    I would like you to run Driver Verifier.

    Driver Verifier - Enable and Disable

    As i said there are multiple things flagging up in the DMP's. We will take one at a time.
    Thanks for your help. I've enabled driver verifier, will check it once I come back home.

    CMUACWO is the driver for Schiit Audio Bifrost D/A USB converter. It makes sense now as I started getting blue screens roughly at the same time as I installed it.
      My Computer


  4. Posts : 3,904
    Windows 7 Ultimate 64-bit
       #4

    Okay brilliant, because we now know what is causing the BSOD we don't need to run driver verifier.

    Please uninstall and reinstall the problematic driver.

    Keep m posted, I'm off to work now but i will be able to check on my lunch break.
      My Computer


  5. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #5

    Hi,

    Sorry I didn't have a chance to re-install the driver. Will do it sometime this week and report back.
    Thanks.
      My Computer


  6. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #6

    Ok
    I've reinstalled the driver, will give it a few days and report back
      My Computer


  7. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #7

    Re-installing the driver didn't help, my computer still reboots occasionally. Is there anything I need to do to further investigate?
    Thank you.
      My Computer


  8. Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       #8

    anyone?
      My Computer


 

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