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Windows 7: BSOD - EVENT 41 after CPU upgrade

24 Feb 2010   #1
biosol

Windows 7 64-bit
 
 
BSOD - EVENT 41 after CPU upgrade

I had a stable system Win7 64 bit (with the specs in my profile/sig) with a E6750 (actually 2 months ago the system was about 2.5 years old and the psu, motherboard, and video card were all problematic, so I replaced all of them and got (more) new RAM at that time. I put my E6750 into the new MB and it was stable for 2 months). Wanting more multitasking power, last week I got a Q9550 and swapped out the cpus. It seemed to run fine for a day or two, but over the last 3 or so days has BSOD and various programs like media center have crashed. It have a 2250 TV tuner card, so I reseated it, and yesterday I reinstalled Win7 64-bit so this is now a fresh install. It's BSOD 3 times today. I ran the Sandra burn-in test on it a couple days ago and the cpu and RAM passed the tests, the HDD(s) and DVD failed I think it said they needed to be empty.

I've reset the MB setting to "load fail safe defaults". Please help me discover what's wrong. Attached is are my files.

Thanks.


My System SpecsSystem Spec
.
24 Feb 2010   #2
MimiShing

Win 7 Home 32 Bit
 
 

All 3 dumps seem to be memory related. If you haven't already done so, run memtest86+ (overnight preferably).

http://www.memtest.org/download/4.00...+-4.00.iso.zip

Burn it to CD using imgburn or similar and boot off the disc.

Good luck!
My System SpecsSystem Spec
24 Feb 2010   #3
Mayotruck

Windows 7 Utimate 64bit edition
 
 

Get a program called core temp and check to see how hot your cpu is running...sound like your fan might not be properly seated with your new cpu.
My System SpecsSystem Spec
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24 Feb 2010   #4
biosol

Windows 7 64-bit
 
 

Ok, got core temp. Just started the system up. Cores 0 & 1 are 36c with 0-2% load, Cores 2 & 3 are 43c. Does that mean anything? What should I run to test out temps?
My System SpecsSystem Spec
24 Feb 2010   #5
Mayotruck

Windows 7 Utimate 64bit edition
 
 

prime 95

makke sure you dont hit the TJmax in core temp when running prime.. it will fry your cpu...keep it 20% lower than the max

whats your current tj max?
My System SpecsSystem Spec
24 Feb 2010   #6
biosol

Windows 7 64-bit
 
 

Tj. Max is 100c. Where do I get prime95 from? I didn't get many/any BSOD for the last 2 months with the same memory, so if the dump indicates memory could the cpu heating up cause it to look like a memory problem?

Also, during Sandra the other day, it reported the temp range from 42-54c, but I guess you're saying if the HSF is a little off maybe 1 or 2 cores, but not necessarily the whole cpu is overheating?
My System SpecsSystem Spec
24 Feb 2010   #7
Mayotruck

Windows 7 Utimate 64bit edition
 
 

My System SpecsSystem Spec
24 Feb 2010   #8
Mayotruck

Windows 7 Utimate 64bit edition
 
 

43 sounds about right for your core but just check when your system is under load it will go up fast as soon as you start prime95 so be carfull please
My System SpecsSystem Spec
24 Feb 2010   #9
biosol

Windows 7 64-bit
 
 

What should I use as a max, 60 or 65?

Which test should I run, small FFT, large FFT, Blend?
My System SpecsSystem Spec
24 Feb 2010   #10
Mayotruck

Windows 7 Utimate 64bit edition
 
 

set max to 70 ...just be ready to shut down prim..blend
My System SpecsSystem Spec
Reply

 BSOD - EVENT 41 after CPU upgrade




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