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Daily BSODs Win7x64, page fault in non paged area and irql not less or equal

By nubkratos
Nov 18, 2011
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  1. Hello,

    Monday i reinstalled Windows 7 64 bits Ultimate Edition after receiving new ram and new motherboard
    I have installed Windows 7 64 from USB device, and randomly i have BSODs, PAGE FAULT IN NON PAGED AREA and IRQL NOT LESS OR EQUAL , always caused by ntoskrnl.exe. ( Whocrashed says: "This was probably caused by the following module: ntoskrnl.exe (nt+0x705C0)
    )"

    It occurs very rarely, not only when i am playing or using programs that use many ressources, It is very random.

    I ran:

    Memtest : 17 hours, 8 passes, no errors
    OCCT: 1 hours, no error, CPU Overclocked and not overclocked, RAM with 1600 Mhz and 1333 Mhz
    Furmark ( for GPU): 1 hours, no problems
    chkdsk: Done

    I have checked tempsĀ° with AIDA64, no problems.

    Windows 7 Ultimate 64 bits, full retail.

    CPU : AMD Phenom II X3 720
    PSU: OCZ ModXstream 500 W
    Graphics: ATI Radeon HD 6850
    ASUS M4A89GTD PRO/USB 3
    RAM: Corsair Vengeance 2*4 DDR3-1600 CL9
     
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,213   +230

    You might have to play with the memory voltage or timings a bit, in the bios
     
  3. nubkratos

    nubkratos TS Rookie Topic Starter

    Sorry I forgot the minidumps
     

    Attached Files:

  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,213   +230

    once more :rolleyes:
     
  5. nubkratos

    nubkratos TS Rookie Topic Starter

    Thank you for the quick response.

    Should i increase or decrase DRAM voltage ? and timing? I'm actually at 1.55 V at 9-9-9-24
     
  6. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,213   +230

    You probably have to choose manual and then just move the voltage up or down a notch or two. Experiment with the settings. Timing looks okay
     

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