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F3-12800CL9D-4GBNQ, i5-750 & P55M-UD2 freezing @ idle/low load

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  • F3-12800CL9D-4GBNQ, i5-750 & P55M-UD2 freezing @ idle/low load

    Intel i5-750
    Gigabyte P55M-UD2, tried both F11 and F12
    Coolermaster Hyper 212+ CPU heatsink
    MSI GTS 250 1GB
    OCZ 500W ModxStream PSU
    4GB of G.Skill F3-12800CL9D-4GBNQ (2x2GB DIMMs) - rated DDR3 1600 1.5v 9-9-9-24

    I assembled this machine last month for a friend and have been unable to get it stable yet, after weeks of troubleshooting. I'm at wits end here lol

    The system seems to freeze solid (hard reboot required) randomly while idle and during low CPU/gpu load situations, (copying/downloading files, browsing the net, etc...) Left overnight it'll be frozen every time.

    This happens both on a freshly installed win7 x64 OS (right after install) and on one with the latest windows updates, drivers, etc... Happened once in safe mode, and happened while running Mac OSX as well.

    I'm baffled, it seems rather random TBH, sometimes it stays up a few hrs, sometimes it doesnt


    I've tried a bunch of different BIOS settings that I've seen recommended, tried overclocking, tried manually setting stock, and the system has tested +2 hrs linpack or 3hrs prime95 largeFFT stable with a few different configs, yet each has either locked up soon after the load ended, or frozen when running Sandra CPU benchmarks right after hrs of prime95 load, frozen shortly after boot while at idle, etc.... (temps are great)

    I've swapped in a 2nd good PSU, a nvidia 9600GSO, swapped in a 4GB kit of F3-12800CL7D-4GBRM (rated @ 1600mhz 7-8-7-24 @ 1.6v), replaced the heatsink, RMA'ed the motherboard and CPU, and I've currently got the machine sitting caseless with a single stick of RAM running open on a bench yet its still freezing


    Any suggestions?
    Do I need different timings/voltages for 2x2GB G.Skill F3-12800CL9D-4GBNQ @ 1333mhz?


    prior attempts detailed here: http://forums.tweaktown.com/gigabyte...ck-clocks.html


    Current settings:
    CPU Clock Ratio 20x

    Advanced Core Features [Press Enter]:

    Intel(R) Turbo Boost Tech................[Enabled]
    CPU Cores Enabled........................[All]
    CPU Enhanced Halt (C1E)..................[Enabled]
    C3/C6/C7 State Support...................[Enabled]
    CPU Thermal Monitor......................[Enabled]
    CPU EIST Function........................[Enabled]
    Bi-Directional PROCHOT...................[Auto]

    QPI Clock Ratio..........................[Auto]
    QPI Link Speed........................[4.8Ghz]
    Uncore Clock Ratio....................[16x]
    Uncore Frequency.........................2133MHz

    >>>>> Standard Clock Control <<<<<

    Base Clock (BCLK) Control................[Disabled]
    BCLK Frequency ..........................[133]
    Extreme Memory Profile (X.M.P.)..........[Disabled]
    System Memory Multiplier (SPD)...........[Auto]
    Memory Frequency (MHz)................1333
    PCI Express Frequency (MHz)..............[Auto]
    C.I.A.2..................................[Disabled]

    >>>>> Advanced Clock Control <<<<<

    CPU Clock Drive..........................[ 800mV]
    PCI Express Clock Drive..................[ 900mV]
    CPU Clock Skew...........................[ 0ps]

    Advanced Memory Settings:

    Extreme Memory Profile (X.M.P.)..........[Disabled]
    System Memory Multiplier (SPD)...........[Auto]
    Memory Frequency (MHz)................1333
    Performance Enhance (SPD)............. [Turbo]
    DRAM Timing Selectable (SPD)............ [Expert]
    Profile DDR Voltage ..................1.5
    Profile QPI Voltage ..................1.1
    Channel Interleaving.....................[Auto]
    Rank Interleaving........................[Auto]

    >>>>> Channel A & B

    Channel A Timing Settings [Press Enter]:
    Cas Latency Time........................[8]
    tRCD....................................[8]
    tRP.....................................[8]
    tRAS...................................[24]

    >>>>> Advanced Timing Control

    tRC....................................[Auto]
    tRRD...................................[Auto]
    tWTR...................................[Auto]
    tWR....................................[Auto]
    tWTP...................................[Auto]
    tWL....................................[Auto]
    tRFC...................................[Auto]
    tRTP...................................[Auto]
    tFAW...................................[Auto]
    Command Rate (CMD).................. 1 [1]

    >>>>> Misc Timing Control

    B2B Cas Delay..........................[Auto]
    Round Trip Latency.....................[Auto]

    Advanced Voltage Settings:

    ******Mother Board Voltage Control ******
    Voltage Types............Normal......Current
    --------------------------------------------

    >>> CPU
    Load Line Calibration...................[Enabled]
    CPU Vcore..................1.20750v..[Auto]
    QPI/VTT Voltage..........1.100v.....[Auto]

    >>> MCH/ICH
    PCH Core....................1.050v.....[Auto]
    CPU PLL......................1.800v.....[Auto]

    >>> DRAM
    DRAM Voltage..............1.500v.....[Auto]
    DRAM Termination.........0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-A Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]
    Ch-B Data VRef............0.750v.....[Auto]

    Miscellaneous Settings:

    Isochronous Support....................[Enabled]
    Virtualisation technology..............[Enabled]

  • #2
    So you tried the other G.Skill kit and had the same problem? You replaced the motherboard, CPU, and all, yet still have the same problem? Just making sure I am following correctly.

    Thank you
    GSKILL TECH

    Comment


    • #3
      Correct

      The CPU & Mobo were RMA'ed, and I swapped in the GPU, PSU and RAM out of my year old P55-UD3R/i5-750 build, yet the issue was unchanged.

      I've currently got the system running open on a bench, with nothing but mobo/gpu/CPU/SSD and a single stick of RAM, on an entirely fresh win7 x64 install and its still freezing

      At this point I suspect it must be some compatibility/config issue, as I've pretty much ruled out component defect, I'm just not sure what to try next

      Comment


      • #4
        Send the memory in for new replacements, the new set should work much better.

        Thank you
        GSKILL TECH

        Comment


        • #5
          the machine had the same freezing issue using the 4GB kit of F3-12800CL7D-4GBRM I tried out of my year old P55/i5 build, why would a new set of g.skill RAM be any different than the two I've already got? I'd gladly RMA if it'd solve the issue, but I've already done so with the CPU/Mobo without success :/

          Can you give me a set of manual timings/voltage for 1333mhz?

          Would trying a single DIMM of the other kit be useful?
          Last edited by Logicaluser; 08-04-2010, 03:07 PM.

          Comment


          • #6
            Try out to disable LLC, more voltage on Vcore and not to much on VTT, not more than 1,15V.

            LLC lead me to bluescreens, without everything works fine.

            Comment


            • #7
              For the NQ kit, DDR3-1333 8-8-8-24 should have no problems.

              For the RM kit, DDR3-1333 7-8-7-24 should have no problems.

              Single DIMM simply isolates the modules, so you can surely try that too to see if one performs differently.

              Thank you
              GSKILL TECH

              Comment

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