1 Reply Latest reply on Oct 14, 2010 1:19 PM by sergios_intel

    P55 with i7-870, rando BSOD during cold boot


      I have just setup a new system at the beginning of September.

      I encountered lots of random BSOD - Blue Screen Of Death.

      And  this happens whenever I startup the system the first time for the day.

      I  believe this is a so-called "cold boot" issue.

      Below are some specs  before I proceed to further explain the issue.

      My Memory Specs:


      Speed Rating: PC3-12800 Tested

      Speed: 1600Mhz Size: 4GB  Kit (2 x 2GB)

      Tested Latency: 7-8-7-20

      Tested Voltage: 1.65

      Performance  Profile: XMP

      SPD Speed: 1333Mhz

      SPD Latency: 7-7-7-20

      My System Spec:

      EVGA P55 SLi (132-LF-E655-KR)

      EVGA GeForce GTX 460 SuperClocked 768MB  (768-P3-1362-KR)

      CMX4GX3M2A1600C7 x 2 (Total 4 x 2G = 8GB)

      Seasonic  M12II-620watt

      OS is Windows 7 64-bit Ultimate.

      My System settings:

      CPU:  Default 2.93GHz (133x22) with Intel Speedstep enabled and Intel Turbo  Boost enabled.

      DRAM: 1600MHz. 7-8-7-20-2T @ 1.65Volt XMP Profile

      I was  hit by the BSOD in every cold boot. And I did some test on my system to verify if any there were any faulty hardware.

      Some Test result:
      - individual mem test passed.
      - dual mem test passed.
      - dual x 2 mem test passed.

      Test done are:

      - 25 passes run for IntelBurnTest with MAXIMUM settings, the 4-up passed.
      - 30++ passes with Prime95 overnight. With the 4-up.

      - 10++ passes with MEMTEST 4.10

      But failed with BSOD when cold boot after 10hrs shutdown.

      It looks like its really a cold boot issue. The system an pass all test with no errors but fails at cold boot.

      Setting used during the above test:

      i7-870, 2.93GHz (default 133 x 22)
      Intel speedstep enabled.
      Intel Turbo Boost enabled.
      Corsair RAM at 7-8-7-20 2T
      with XMP Profile - Auto
      DRAM Voltage manual @ 1.65v
      VTT manual @ 1.2v

      Vcore mauanl @ 1.2v

      Vdroop disabled.

      The CPU-Z shows the CPU speed was running at a range of 3.2~3.59GHz with the Intel Turbo Boost enabled.

      Witht the Intel Turbo Boost disabled, the speed stays at 2.93GHz.
      There may be a chance that the CPU did some OC here as it passed the test, but just don't want to OC during cold boot?
      Everything works fine after the CPU "warm-up". So, is the an issue with the CPU?

      I hope anyone with similar or same issue can advise. thanks.