BlueScreen 1a problem

Discussion in 'Windows 7 Blue Screen of Death (BSOD)' started by Cristian Donciu, Mar 16, 2017.

  1. Cristian Donciu

    Cristian Donciu New Member

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    Hello,

    I have a blue screen error, BCCode 1a.
    Please, can someone clarify me whether this error can be cured or it is a irremediable hardware problem.
    I have attached the dumb files and information about my system.

    Thank you!

    Problem signature:
    Problem Event Name: BlueScreen
    OS Version: 6.1.7601.2.1.0.256.1
    Locale ID: 1033

    Additional information about the problem:
    BCCode: 1a
    BCP1: 0000000000041201
    BCP2: FFFFF6800031B000
    BCP3: E0975B88291BC1A3
    BCP4: FFFFFA80099354D0
    OS Version: 6_1_7601
    Service Pack: 1_0
    Product: 256_1
     

    Attached Files:

  2. Neemobeer

    Neemobeer Windows Forum Team
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  3. kemical

    kemical Windows Forum Admin
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    Hi,
    Bugcheck 1A is usually associated with failing RAM although it can also be caused by software/drivers. If you can post the dump files we can then determine what your best course of action is.
    If no dump files are available then you need to change settings so they are created when a bsod occurs.

    Open the run application.
    Type sysdm.cpl in the run box and click ok.
    Look across the top of the system properties box for 'Advanced' and click that.
    Look for 'Startup and Recovery' near the bottom and click 'settings'.
    Near the bottom you'll see a drop down menu under the heading 'write debugging information'.
    In the drop down menu choose ' small memory dump (256KB)'
    Under 'small dump directory' make sure it says %SystemRoot%\Minidump.
    Click ok and your good to go.

    Finally a real simple test to see if it is the RAM that's at fault is to run the machine on one stick at a time. If you find that the machine blue screens on one particular stick but not the others then you have the culprit..

    Anyhoo, if you can, please post those dumps and we'll take a look.
     
  4. Cristian Donciu

    Cristian Donciu New Member

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    I followed the instructions and loaded the result in the first post (see file "W7F Diagnostic Tool (2) .zip").
    However I have attached the dump files to this post.
    Thank you very much!
     

    Attached Files:

  5. Neemobeer

    Neemobeer Windows Forum Team
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    I see a lot of 1A and 50 which are both memory related.

    1: kd> du KiBugCheckDriver
    fffff800`030312a0 "????????????????????????????????"
    fffff800`030312e0 "????????????????????????????????"
    fffff800`03031320 "????????????????????????????????"
    fffff800`03031360 "????????????????????????????????"
    fffff800`030313a0 "????????????????????????????????"
    fffff800`030313e0 "????????????????????????????????"
    fffff800`03031420 "????????????????????????????????"
    fffff800`03031460 "????????????????????????????????"
    fffff800`030314a0 "????????????????????????????????"
    fffff800`030314e0 "????????????????????????????????"
    fffff800`03031520 "????????????????????????????????"
    fffff800`03031560 "????????????????????????????????"

    There is no driver name listed so either the stack is corrupt or this wasn't a driver issue.

    The other piece that leads me to believe this is memory hardware related is the IRQL level during the dump
    PROCESS_NAME: taskhost.exe

    CURRENT_IRQL: 0

    IRQL 0 is basically for application space so a device hasn't interrupted otherwise IRQL would be much higher.

    I would download and run memtest86+ for at least 10 passes or until you get errors. If you get errors and have multiple memory sticks, remove all but one and test. Repeat until you hit errors again and replace the memory stick.
     
  6. kemical

    kemical Windows Forum Admin
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    Neem's is bang on with his assessment .

    Good luck with the testing.
     

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