Random BSOD after system maintenance

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  1. Posts : 272
    Windows 7 Ultimate x64 Full Retail SP1
    Thread Starter
       #61

    I have installed the new cooler. I have run the OCCT PSU and CPU tests for 30 minutes each. The CPU temps never reached 60 degrees (C) during the tests. When I installed the new CPU cooler, I removed the mobo from the case. While doing so, I noticed that 3 of the 7 screws that attached the mobo to the case were loose (no doubt the result of my tearing things apart and reseating them). There was also a loose power connection to my sound card. My current situation is this: All RAM is installed, all questionable connections have been tightened and I wish to start from a new 'scratch' from a diagnostic point of view. The OCCT output is attached. I will post again if BSODs occur and we can go from there. I prefer to change only one variable at a time, in this case I have changed two (heat issue SOLVED and potentially error causing grounding issues addressed to the best of my ability. We'll see what happens, I welcome whatever you divine from the OCCT results.
    Cheers
    Alex
      My Computer


  2. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #62

    CPU core temps are nice, much better.

    Loose power connection, grounding, can be the cause. Good idea to check the motherboard.
    All the OCCT graphs look good, still seeing the voltage fluctuation they should be nearly flat line, this can be caused by PSU or motherboard.
    It's not bad enough to start replacing components, just keep it in mind.

    Let's wait and see if you get another crash.
      My Computer


  3. Posts : 272
    Windows 7 Ultimate x64 Full Retail SP1
    Thread Starter
       #63

    *crosses fingers*
      My Computer


  4. Posts : 272
    Windows 7 Ultimate x64 Full Retail SP1
    Thread Starter
       #64

    More boom. Ugh
      My Computer


  5. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #65

    That's not good news.

    Are the DRAM voltage 1.600v and the NB voltage 1.220v?

    Run memtest86+ again, 7 full passes, all RAM cards installed.
    You can stop the test if you get any errors.

    When you changed the CPU cooler, did you inspect the CPU for bent pins?

    Last four crashes:
    Code:
    STOP 0x0000001A: MEMORY_MANAGEMENT
    Usual causes:  Device driver, memory, kernel
    PROCESS_NAME:  MsMpEng.exe
    FAILURE_BUCKET_ID:  X64_0x1a_403_nt!_??_::FNODOBFM::_string_+320ec
    ----------------------------------------------------------------------------------------------------------------------------------------------
    STOP 0x000000C2: BAD_POOL_CALLER
    Usual causes:  Device driver, ?Memory
    Probably caused by : dxgkrnl.sys ( dxgkrnl!DXGDEVICE::DestroyAllocations+72d )
    PROCESS_NAME:  bf3.exe
    MAGE_NAME:  dxgkrnl.sys
    FAILURE_BUCKET_ID:  X64_0xc2_d_dxgkrnl!DXGDEVICE::DestroyAllocations+72d
    -----------------------------------------------------------------------------------------------------------------------------------------------
    STOP 0x0000004E: PFN_LIST_CORRUPT
    Usual causes:  Device driver, ?memory
    Probably caused by : memory_corruption ( nt!MiBadShareCount+4c )
    PROCESS_NAME:  explorer.exe
    IMAGE_NAME:  memory_corruption
    -----------------------------------------------------------------------------------------------------------------------------------------------
    STOP 0x0000000A: IRQL_NOT_LESS_OR_EQUAL
    Usual causes:  Kernel mode driver, System Service, BIOS, Windows, Virus scanner, Backup tool, compatibility
    FAILURE_BUCKET_ID:  X64_0xA_nt!KeAcquireInStackQueuedSpinLock+5f
    First one doesn't give much info.
    Second is blaming DirectX.
    Diagnosing basic problems with DirectX
    Third is memory corruption.
    Fourth is not much help.
      My Computer


  6. Posts : 272
    Windows 7 Ultimate x64 Full Retail SP1
    Thread Starter
       #66

    Yeah, it's not. The voltages are set as described. The 1st one was when I was simultaneously closing Microsoft Money 2004 and removing a USB stick after backing Money up to it. Bad timing. the 2nd was exiting Battlefield 3 which is a known bug producing nation. The third was on shutdown after playing BF3 and I forget what was going on with the 4th. I'll run memtest overnight, but it hasn't thrown an error, ever in the 10 or so times I ran it. Last time was 11 passes (earlier in this thread, as I recall). Might be the mobo got cooked somewhere at some point, dunno. Thanks for checking in, though.

    didn't look carefully at the CPU, but it's the contact pin as opposed to the socket pin type connector.
    Last edited by badkarma11; 22 Oct 2012 at 08:14. Reason: additional info
      My Computer


  7. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #67

    Have to agree, you've testing everything we can run tests on.
    Which leaves PSU and motherboard.
    The OCCT graphs are showing a lot of Vcore (CPU voltage) fluctuation which may be caused buy either of these.
    You can test the PSU by installing a different or new one. Borrow one, if you can, or buy one at a place with a good return policy, which is hard to find.

    I have seen memtest86+ pass several times and then throw an error, new RAM fixing the issue.

    Wish we could have narrowed it down further.
      My Computer


  8. Posts : 272
    Windows 7 Ultimate x64 Full Retail SP1
    Thread Starter
       #68

    I've beat memtest to death. I could buy a new PSU and apply the current one to a future build if it turns out not to be the problem. Socket 775 mobos are all but unavailable, except for the one I have. If it looks like mobo, I'll live with it until my next build. At least the BSODs are intermittant. Thank you so very much for all the time you took on this. I'll PM you if/when I swap out the PSU and let you know what happened, but I guess this thread must now go to it's reward.
      My Computer


  9. Posts : 12,177
    Windows 7 Ult x64 - SP1/ Windows 8 Pro x64
       #69

    Good plan, you can post the results of the new PSU here.
    That way it might help someone else with a similar issue.
      My Computer


  10. Posts : 272
    Windows 7 Ultimate x64 Full Retail SP1
    Thread Starter
       #70

    I have finally replaced the PSU. I ran OCCT briefly to watch the real time graphing. low voltage stuff was flat line, not jaggy like last time. If it blows up, I'll run and post the PSU and CPU tests. If it doesn't blue screen for a month, I win!!!
      My Computer


 
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