BSOD at start windows - cpu author of crime


  1. Posts : 2
    Windows 7 Ultimate x64
       #1

    BSOD at start windows - cpu author of crime


    history: cpu working 3,5 years on 46 multiplier (4,6Ghz). all fine, auto vcore, but with monitoring vcore and temperature by AIDA and core temp (~80 C maximum, and only in summer). (2600k i7).
    yesterday i was trying multiplier up to 48, and update firmware of bios to 2303 (asus p8p67)
    start render in after effects. After few hours - BSOD.
    0x124 The system encountered an uncorrectable hardware error
    after rebooting - bsod at starting win7. Same code of bsod. In 95% attempts - same problem.Sometimes there was the other code:
    0x09c machine check exception
    But sometimes(~5%) - windows was starting good, but after few minutes - same bsod.

    I`m reset bios settings, take out battery from motherboard, experiments with settings - bsod. manual voltages, - bsod. reintstall windows - bsod on any progress.

    Why exactly this situation was caused by CPU? I have the other pc - cpu and motherboard are the same (firmware version is the same too). I was changing hardware step by step. And found author of bsod – cpu, after installing him on second pc - and bsod was there. And cpu from second to first pc – was working.


    After many experiments and tests – I launched windows with the next settings in bios:
    hyper-threading - off
    turbo boost - off
    c1e, and other energysaver - off
    spread spectrum - off
    only one core at work
    3500 Mhz
    auto vcore (~1.18 from core temp)
    manual secondary voltages:
    VCCSA 0.925 V
    VCCIO 1.050 V
    CPU PLL auto
    dimm - 1.5 V

    With this settings system is stable, after this post I will try other (most powerful, and add more cores) settings.
    and now i have minidump, and other files from FAQ for bsod (in attach)

    how to fix this problem?

    ============
    little update - now working at 4 cores and HT. but loading often not stable...
    Last edited by matuzalem; 02 Feb 2015 at 06:52. Reason: progress
      My Computer


  2. Posts : 2
    Windows 7 Ultimate x64
    Thread Starter
       #2

    up problem
      My Computer


  3. Arc
    Posts : 35,373
    Microsoft Windows 10 Pro Insider Preview 64-bit
       #3

    Hi matuzalem.

    It appears that you know your staff. So I will not try to say anything overhead to you. Have you done a stress test to the CPU? If not, take it.

    Stress test the CPU. It saves the result as a .txt file in the prime95's folder. Upload the file for us.

    Also, set the CPU clocks to stock and see how it goes.

    Stress test the Graphics Card using Furmark, too. Take a screenshot of the furmark window before closing it. Upload the screenshot for us.

    Test your RAM modules for possible errors. Run memtest86+ for at least 8 consecutive passes.

    If it start showing errors/red lines, stop testing. A single error is enough to determine that something is going bad there.

    Check if the Power Supply Unit (PSU) supplying adequate power to the computer or not.
    eXtreme Power Supply Calculator - The most trusted PSU Wattage Calculator
    Let us know the wattage of the PUS, too.

    Is the computer hot? Report us the heat of the computer after a couple of hours of your normal usage. Upload a screenshot of the summery tab of Speccy. Alternatively, you can publish a Speccy snapshot too: Speccy - Publish Snapshot of your System Specs .

    Let us know the results.
    ______________________________________
    Code:
    BugCheck 124, {0, fffffa8007d9d028, bb800000, 175}
    
    Probably caused by : GenuineIntel
    
    Followup: MachineOwner
    ---------
      My Computer


 

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