I've searched high and low for an answer to this one. I recently removed my nVidia graphics card and the crashes are now less frequent. Here's the info from my latest mini dump. Can anybody shed any light on this?

Thanks!

================================================== Dump File : 032413-14320-01.dmp Crash Time : 24/03/2013 22:55:22 Bug Check String : IRQL_NOT_LESS_OR_EQUAL Bug Check Code : 0x0000000a Parameter 1 : fffffd8004695fe8 Parameter 2 : 0000000000000002 Parameter 3 : 0000000000000000 Parameter 4 : fffff800029669d5 Caused By Driver : ntoskrnl.exe Caused By Address : ntoskrnl.exe+75c40 File Description : NT Kernel & System Product Name : Microsoft® Windows® Operating System Company : Microsoft Corporation File Version : 6.1.7601.18044 (win7sp1_gdr.130104-1431) Processor : x64 Crash Address : ntoskrnl.exe+75c40 Stack Address 1 : Stack Address 2 : Stack Address 3 : Computer Name : Full Path : C:\Windows\Minidump\032413-14320-01.dmp Processors Count : 4 Major Version : 15 Minor Version : 7601

Dump File Size : 280,944

I would start at the very beginning in scenario like this because these BSOD messages can sometimes be misleading and can easily send you down the wrong path.

Test your hard drive for bad sectors as well as the RAM in your system for errors.

There are a variety of bootable disk utilities you can use to test the health of Hard Drives. One simple but effective tool to use is Drive Fitness Test. This will tool will essentially go through the drive checking for bad sectors as well as performing a number of other checks in the process.

The second thing to test for would be faulty RAM, with something like Memtest86+.

Once you have established that there is no faulty hardware it will be much easier to diagnose other, OS related issues, such as faulty drivers or bad patches/processes.