Lately, I've been getting a lot of BSODs on this home built system of mine. the computer has worked flawlessly for about 8 months. But its acting up now. Seems like whenever I try to stress the CPU by running Prime95 or OCCT, it will blue screen with a different error each time. 95% of the time the error is about IRQL_NOT_LESS_OR_EQUAL. Then I once got a BSOD for ataport.sys and then one was completely generic (no specific error code, no system file mentioned) and then the latest one was just a blue screen....literally, just a blue screen, no words.
It also blue screens if I use my xbox media center extender to watch video from this PC. I use transcode 360 to stream to my xbox.
I thought this might have had something to do with my temps, but the CPU is usually under 60C.
Its probably not the memory, because I ran memtest for 1 pass and Vista's built-in memory diagnostic Tool. Both cameback with no errors.
Its probably not the GPU since I had two instances of rthdribl running, with the evga 8800GTX running at 90C for about 20 mins and nothing happened.
The MOBO is a GA-P35-DS4 Rev 2.0. I've upgraded to the latest firmware after these problems started occuring but that made no difference. I have the latest non-Beta nvidia drivers. And I also have ntune installed. I've tested each ram stick separately with memtest but no errors.
So now I was doing a 'thorough' chdsk and I got a bsod for DRIVER_IRQL_NOT_LESS_OR_EQUAL and this time the system file was ecache.sys.
I am glad to announce the problem has been identified and fixed. You were spot on auscanzukus!!! It was the voltage. I increased it and then voila! I even ran Prime95 overnight and its all good.
But then I got BSODs while streaming videos from Vista Media Center to by Xbox extender. BSODs for 'BAD_POOL_CALLER' It turned out that the file in question was lltdio.sys. So I went to the Realtek website and got the latest LAN drivers and that fixed another BSOD.