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Windows 7: BSOD while running Lare FFT in Prime95

10 Jan 2013   #1

Windows 7 Ultimate x64
 
 
BSOD while running Lare FFT in Prime95

Hello, everyone

I upgraded my CPU and motherboard. I was running Prime95 under large FFT settings and after 10min I got BSOD. I'm not sure what caused it.

Here are my PC specs:

CPU: AMD FX 8350 4.0Ghz
GPU: AMD HD 6870
Motherboard: ASUS M5A97 R2.0
Samsung SSD 128GB and 500GB Wester Digital.
PSU: XFX(Seasonic) 600W
OS: Windows 7 64bit

Im using mix match memory. In total I have 12GB of memory.
2X4GB = 8GB Corsair XMS Memory kit for dual channel systems, 1333MHz ,
2X2GB= 4GB Kingston DDR3 1333MHz i5 Memory Kit CL9

I did a clean install of Windows when I upgraded

My System SpecsSystem Spec
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10 Jan 2013   #2

Windows 7 Ultimate x64
 
 

Ok, it happened again. this time after 1h 30min later.

I was once again running Prime95 64bit. This time I checked the blend section.

My CPU temp was no more than 58c
My System SpecsSystem Spec
10 Jan 2013   #3

Microsoft Community Contributor Award Recipient

Windows 7 64-bit
 
 

If Large FFTs is bugging out, then there's a good chance the internal CPU cache is bad. How does Memtest86+ look after doing 7 passes on it?

If you just installed a motherboard, make sure that all the drivers associated with it are up-to-date, as well as the BIOS, and that all utilities for it are uninstalled. This includes monitoring, updating, overclocking and other misc. software. Only have device drivers installed for it pertaining to your individual components (network, audio, USB, etc.). I notice you have the AOD driver installed, which commonly harbors bugs and will crash the system. Remove it, and only rely on BIOS OCing if the need arises. Of course, it goes without saying that all overclocking should not take place if you find your system being unstable. Make sure your motherboard is not set to any default settings that actually ends up OCing the system. A number of mobos will have default settings that it deems is still overclocked but "stable for any setup" but in reality is just an assumption. If there's safe settings set it to that and check stability.
My System SpecsSystem Spec
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10 Jan 2013   #4

Windows 7 Ultimate x64
 
 

Thanks for the reply, if internal CPU cache is bad than does that mean I have a faulty CPU? And for the overclocking, I went in to BIOS and everything was in default settings. I looked around make sure SATA is set to AHIC, and AMD overclocking TurboCore is disabled.

I will test memtest now and get back to you soon as I can.
My System SpecsSystem Spec
10 Jan 2013   #5

Windows 7 Ultimate x64
 
 

Ok, I ran Memtest for 10min and it has already found 8 errors. This is odd I ran it before for 1 hour and it did not pick up any errors.

Do you think it was my memory causing the BSOD?

Thank you very much for your time and help. I really appreciate it.
My System SpecsSystem Spec
10 Jan 2013   #6

Microsoft Community Contributor Award Recipient

Windows 7 64-bit
 
 

Yes, it does mean the CPU is bad, but we aren't entirely sure on this, as there can be other factors that can impede on the CPU's stability (the AMD OC driver being one). Again, run through the previous recommendations and we'll go from there.
My System SpecsSystem Spec
10 Jan 2013   #7

Microsoft Community Contributor Award Recipient

Windows 7 64-bit
 
 

The memtest was bad, eh? If the memory was good on the previous mobo, then there is a good possibility there's an incompatibility with your RAM setup for your new mobo or the mobo is just plain bad. Have you checked the mobo RAM compatibility tables and tried other various RAM configurations? The only prob is CPU could still be involved as it's used to perform the memory checks.
My System SpecsSystem Spec
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 BSOD while running Lare FFT in Prime95





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