PC freezing and BSOD

W3L5H · 18 Feb 2013

Hello, I have had this Novatech Laptop since July and it's been working fine for months. Recently it has begun freezing and giving me the BSOD with no apparent cause.
The BSOD I receive is titled 'Driver IRQL Not less than or Equal'

System specs:
OS: Windows 7 Home Premium 64-bit
Processor:Intel core i7-2640M CPU @2.80 GHz
RAM:8GB

I have tried to follow the posting instructions but if I need to add further information let me know, I would greatly appreciate any help. Thanks in advance :)

Dsprague · 18 Feb 2013

It seems that your problems are being caused by your wireless driver:

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {6c, 2, 0, fffff880074d4d7b}

*** WARNING: Unable to verify timestamp for athrx.sys
*** ERROR: Module load completed but symbols could not be loaded for athrx.sys
Probably caused by : athrx.sys ( athrx+c9d7b )

Followup: MachineOwner
---------

Driver Reference Table - athrx.sys

Had a look at the driver its self and it seems rather old:

Code:

kd> lmvm athrx
start             end                 module name
fffff880`0740b000 fffff880`07591000   athrx    T (no symbols)           
    Loaded symbol image file: athrx.sys
    Image path: \SystemRoot\system32\DRIVERS\athrx.sys
    Image name: athrx.sys
    Timestamp:        Tue Nov 23 19:11:58 2010 (4CEC584E)
    CheckSum:         00187FE1
    ImageSize:        00186000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4

It also seems that your Intel graphics driver may be causing problems:

Code:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck D1, {6c, 2, 0, fffff88007339d7b}

*** WARNING: Unable to verify timestamp for athrx.sys
*** ERROR: Module load completed but symbols could not be loaded for athrx.sys
*** WARNING: Unable to verify timestamp for igdkmd64.sys
*** ERROR: Module load completed but symbols could not be loaded for igdkmd64.sys
Probably caused by : athrx.sys ( athrx+c9d7b )

Followup: MachineOwner
---------

updates for that can be found here: Intel Download Center

W3L5H · 18 Feb 2013

Both drivers have been updated and *hopefully* that's the issue resolved. Strange that the wireless adapter driver should be out of date as I had recently updated that very driver, that may have been the cause. Thank you very much Dsprague, you are a white knight of the interwebz!

Dsprague · 18 Feb 2013

Keep us posted and post back if you get more crashes.

W3L5H · 19 Feb 2013

It was working fine last night, I thought I'd leave it a while before I closed the thread, but it looks like the blue screen is back. 'athrx.sys' is still causing the error but I'm not sure what to do, considering I have already installed the latest drivers. I've included the new dump files in case they shed any more light on the issue.