Windows 10: DRIVER_IRQL_NOT_LESS_OR_EQUAL L1C63x64.sys

Discus and support DRIVER_IRQL_NOT_LESS_OR_EQUAL L1C63x64.sys in Windows 10 BSOD Crashes and Debugging to solve the problem; hello guys this problem has been bothering me a lot, hard to happen, but the blue screen always appears What can it be? I did not make any changes in... Discussion in 'Windows 10 BSOD Crashes and Debugging' started by raian10, Dec 6, 2020.

  1. RAIAN10
    raian10 Win User

    DRIVER_IRQL_NOT_LESS_OR_EQUAL L1C63x64.sys


    hello guys this problem has been bothering me a lot, hard to happen, but the blue screen always appears
    What can it be?
    I did not make any changes in windows, because I formatted to try to see if it solved
    ==================================================
    Dump File : 120620-23406-01.dmp
    Crash Time : 06/12/2020 16:10:45
    Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
    Bug Check Code : 0x000000d1
    Parameter 1 : 00000000`00000000
    Parameter 2 : 00000000`00000002
    Parameter 3 : 00000000`00000000
    Parameter 4 : fffff801`74b66cb3
    Caused By Driver : L1C63x64.sys
    Caused By Address : L1C63x64.sys+6cb3
    File Description :
    Product Name :
    Company :
    File Version :
    Processor : x64
    Crash Address : ntoskrnl.exe+3f5210
    Stack Address 1 :
    Stack Address 2 :
    Stack Address 3 :
    Computer Name :
    Full Path : C:\Windows\Minidump\120620-23406-01.dmp
    Processors Count : 8
    Major Version : 15
    Minor Version : 19041
    Dump File Size : 1.785.084
    Dump File Time : 06/12/2020 16:17:28
    ==================================================

    :)
     
    raian10, Dec 6, 2020
    #1
  2. JOY KEMPRAI
    Joy Kemprai Win User

    BSOD - driver_irql_not_less_or_equal (l1c63x64.sys)

    Hi Seung,

    Sorry for the inconvenience caused by BSOD - driver_irql_not_less_or_equal (l1c63x64.sys).

    Please let us know the make/model of your computer.

    The L1C63x64.sys is the Atheros LAN driver and I would suggest to uninstall and reinstall the Atheros LAN driver but install the latest Atheros LAN driver by visiting the manufacture's website and avoid using any LAN driver available though Windows Update.

    However the problem could also be with any VPN software and other software so make sure you have the latest version of each of these software.

    If the errors continue uninstall the VPN software and check if the issue persist.

    Hope this helps. Get back to us for further queries for BSOD - driver_irql_not_less_or_equal (l1c63x64.sys). We are happy to help!
     
    Joy Kemprai, Dec 6, 2020
    #2
  3. AUGGY [DIRECTLY]
    auggy [Directly] Win User
    BSOD DRIVER_IRQL_NOT_LESS_OR_EQUAL L1C63x64.sys

    Hi,

    The driver that appears to cause the crash is the L1C63x64.sys which is the driver for the Atheros network adapter.

    The L1C63x64.sys appears to be at version 2.1.0.16 from 2013.

    There should be an updated driver available from Windows Update.

    Can you do the following:

    Open the Device Manager and right-click the Qualcomm Atheros network adapter > Properties > Details, then choose "Hardware Ids" from the drop-down menu under "Property".

    What is listed under "Value"?
     
    auggy [Directly], Dec 6, 2020
    #3
  4. PHILC43
    philc43 Win User

    DRIVER_IRQL_NOT_LESS_OR_EQUAL L1C63x64.sys

    BSOD L1C63x64.sys / Driver_IRQL_Not_LESS_OR_EQUAL

    The crash dump does indeed show that L1C63x64.sys driver could be the culprit.

    There is a newer version on the motherboard website so please try updating to ver 2.1.0.21.
    Code:
     
    philc43, Dec 6, 2020
    #4
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DRIVER_IRQL_NOT_LESS_OR_EQUAL L1C63x64.sys

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