FATAL ERROR: Rounding was 0,5, expected less than 0,4; hadrware failure detected

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totemtotemtotem

Honorable
Jun 28, 2013
3
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10,510
Hi, I have a big issue which I cannot solve.
When I play e.g. to Far Cry 3, Fifa 13, Nba2k13 etc. my PC shows a blue screen or it re-bootstraps. Especially when I play to Nba2k13, it frezees and I have to switch off it. I tested the PC using Prime95, OCCT 4.4.0 and after some minutes ithey show the error: FATAL ERROR: Rounding was 0,5, expected less than 0,4; hadrware failure detected. That's alternatively on all 3 Cores.
Motherboard: ASUSTeK Computer INC.: M4N78-AM
Graphics board: NvidiaGeForce 9800 GT
Processor: AMD Phenom(tm) II X3 720 Processor
Operating system: Windows 7 64-bit
How can I understand the source/reason of this fatal error? Is there a software tool to understand it?

Thanks a lot
Ale
 
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Unolocogringo

Unolocogringo

Illustrious
Dec 31, 2007
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Since it is showing on all 3 cores randomly, I would run memtest86 for at least 7 passes to check for memory errors.
http://www.memtest86.com/
This is assuming that your system is running at stock settings. If you are overclocking your processor needs more voltage or your memory needs downclocking or more voltage also.
 
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T

totemtotemtotem

Honorable
Jun 28, 2013
3
0
10,510
Yesterday I let Memtest86 4.3.0 Beta work for 4 hours but any problem.
My PC can work one day without any crash but if don't overload it with heavy games like FarCry 3, etc. therefore I don't think the memory is my problem.
It is not overclocked and the NVidia drivers are always updated (I already installed 3 or 4 updates always wuth the same results).
Could it be the processor or the motherboard ?

WhoCrashed shows many different errors like:
PAGE_FAULT_IN_NONPAGED_AREA (NT Kernel & System)
DRIVER_IRQL_NOT_LESS_OR_EQUAL (Driver TCP/IP or DirectX Graphics MMS)
BAD_POOL_HEADER (NT Kernel & System)
VIDEO_TDR_ERROR (NVidia Windows Kernel Mode Driver version 320.18)
NTFS_FILE_SYSTEM
KMODE_EXCEPTION_NOT_HANDLED

I'm really very confused...
 
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Unolocogringo

Unolocogringo

Illustrious
Dec 31, 2007
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What power supply are you using? make , model and wattage.

Download OCCT and run the power supply test. We are looking for low voltage on the 12 v line under stress.
http://www.ocbase.com/

Also look at the motherboard capacitors. If ANY are swollen ,leaking ,rounded tops etc ..the motherboard needs replaced.
http://www.google.com/search?q=Bad+caps&rls=com.microsoft:en-US:IE-SearchBox&tbm=isch&tbo=u&source=univ&sa=X&ei=Gx_OUfeYKMz_4APZsIEI&ved=0CEIQsAQ&biw=1280&bih=879

Also do a hard drive scan to check for bad sectors.

All of your errors could be caused by any of the things I have listed.
We need to check each one to narrow it down to one culprit.
 
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T

totemtotemtotem

Honorable
Jun 28, 2013
3
0
10,510
Very good tips.
Regarding the power supply, I have replaced it becaus the previous model literaly burst during the test ! It was a 450W. Now it is a 750W, I have to check the model but I'm worry to run the test again...
Regarding the capacitors, I will check them, it is a good suggestion.
For the HD drive I can move for example FarCry from F: to C: and see if it happens again even I already checked the surface.
I will keep you informed
Many thanks
 
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