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Windows 7: Occasional BSOD, constant freezing every half hour.

02 Sep 2012   #1

Windows 7 professional 64bit
Occasional BSOD, constant freezing every half hour.

Hey guys
I'm getting the occasional bsod and constant freezing to the point where i have to reset the pc,
I've formattted and re-installed windows and its still happening,
ive removed my other drives too and it still happens.
I'm pretty sure it's a driver issue.
also when the freeze happens and i reset the pc cant find my ssd that windows boots from untill i power down fully, then windows starts fine and wont have a problem for half an hour untill next freeze.

i ran driver verifier and whocrashed and got this

Crash Dump Analysis

Crash dump directory: C:\Windows\Minidump

Crash dumps are enabled on your computer.

On Sun 9/2/2012 5:18:19 PM GMT your computer crashed
crash dump file: C:\Windows\memory.dmp
This was probably caused by the following module: Unknown ()
Bugcheck code: 0xA (0x3740, 0x2, 0x1, 0xFFFFF8000349D44E)
Bug check description: This indicates that Microsoft Windows or a kernel-mode driver accessed paged memory at DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: Unknown .
Google query: Unknown IRQL_NOT_LESS_OR_EQUAL

On Sat 9/1/2012 4:12:26 PM GMT your computer crashed
crash dump file: C:\Windows\Minidump\090212-28704-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x7F1C0)
Bugcheck code: 0xF4 (0x3, 0xFFFFFA800B610B30, 0xFFFFFA800B610E10, 0xFFFFF8000378E510)
file path: C:\Windows\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: This indicates that a process or thread crucial to system operation has unexpectedly exited or been terminated.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time.


2 crash dumps have been found and analyzed. A third party driver has been identified to be causing system crashes on your computer. It is strongly suggested that you check for updates for these drivers on their company websites. Click on the links below to search with Google for updates for these drivers:


If no updates for these drivers are available, try searching with Google on the names of these drivers in combination the errors that have been reported for these drivers and include the brand and model name of your computer as well in the query. This often yields interesting results from discussions from users who have been experiencing similar problems.

Read the topic general suggestions for troubleshooting system crashes for more information.

Note that it's not always possible to state with certainty whether a reported driver is actually responsible for crashing your system or that the root cause is in another module. Nonetheless it's suggested you look for updates for the products that these drivers belong to and regularly visit Windows update or enable automatic updates for Windows. In case a piece of malfunctioning hardware is causing trouble, a search with Google on the bug check errors together with the model name and brand of your computer may help you investigate this further.

My System SpecsSystem Spec

03 Sep 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64 Bit SP 1

Welcome board.

Driver Reference Table - iirsp.sys, Intel Raid StorPort Driver is present in your driver list, dated 12/14/2005. Update it now from

Driver Reference Table - lsi_fc.sys, LSI Logic Fusion-MPT FC Driver (StorPort), dated 12/10/2008.

Driver Reference Table - nfrd960.sys, IBM ServeRAID Controller Driver, dated 6/7/2006, update from IBM Support Portal: Support home.

Driver Reference Table - SiSRaid2.sys, SiS RAID Stor Miniport Driver, dated 9/25/2008.

Update the programs related to those drivers and report back.
My System SpecsSystem Spec

 Occasional BSOD, constant freezing every half hour.

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