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Windows 7: BSOD occurred 2 times - no idea on cause

05 Oct 2012   #1

Windows 7 Professional x64
BSOD - whocrashed probable cause ntoskrnl.exe (nt+0x7F1C0)

Hey guys,

So in the last couple days ive gotten a BSOD twice. I wasnt doing anything intensive on the computer, just typing out some notes.

The blue screen said IRQL_NOT_LESS_OR_EQUAL

I will attched the zip file from the diagnostic tool. It contains the minidump files from both bsods.

Thanks for the help


Just wanted to add some more random info
- Memtest 86 - no errors - 7 passes
- Did MSE full scan, malwarebytes full scan, and ran CCleaner after the first BSOD
- Also defragmented my harddrive and ran chkdsk (added some clusters to the bad sector list)

edit 2:

Just had the blue screen come up for the third time. It seems to be increasing in frequency.
Event viewer info: The computer has rebooted from a bugcheck. The bugcheck was: 0x0000000a (0x0000000000000000, 0x0000000000000002, 0x0000000000000000, 0xfffff80001a08477).

edit 3.
after running whocrashed ntoskrnl.exe looks like it might be the problem. Not sure how i should go about fixing it though

My System SpecsSystem Spec
05 Oct 2012   #2

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit


Both the BSoDs were caused by your Intel Wireless WiFi Link Driver

BugCheck A, {0, 2, 0, fffff80001ff4477}

Unable to load image netw5v64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for netw5v64.sys
*** ERROR: Module load completed but symbols could not be loaded for netw5v64.sys
Probably caused by : netw5v64.sys ( netw5v64+5b7d )
The drivers are of 2009, suggest you get the latest drivers installed.

0: kd> lmvm netw5v64
start             end                 module name
fffff880`0309f000 fffff880`035da000   netw5v64 T (no symbols)           
    Loaded symbol image file: netw5v64.sys
    Image path: netw5v64.sys
    Image name: netw5v64.sys
    Timestamp:        Thu Mar 26 22:21:24 2009 (49CBAB84)
    CheckSum:         00533DE3
    ImageSize:        0053B000
    Translations:     0000.04b0 0000.04e4 0409.04b0 0409.04e4
Source | netw5v64.sys | Intel Wireless WiFi Link Driver
NETw5v64.sys | Intel Wireless WiFi Link Driver

Driver Reference Table

You might also want to check for an update on your BIOS version.
Current one is quite old:

BIOS Version/Date	Dell Inc. A12, 19/11/2008
Keep us posted
My System SpecsSystem Spec
06 Oct 2012   #3

Windows 7 Professional x64

Awesome! Thanks for the help.

I just updated the driver to a 2010 version. There were newer drivers on the intel site (i did download the newest one from 2012) but it listed my device as one that wouldn't update to the newest driver version.

I looked into the BIOS as well but it seems that A12 is the newest version out.

Thanks again for the help. I will have to wait and see for a few days to make sure the issue is fixed
My System SpecsSystem Spec

06 Oct 2012   #4

Microsoft Community Contributor Award Recipient

Windows 10 Home 64Bit

No problem. Keep the thread open for another week
My System SpecsSystem Spec

 BSOD occurred 2 times - no idea on cause

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