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




  1. #1
    Join Date
    Jun 2010
    Location
    Canada
    Posts
    66

    Default P55M-UD2, i5-750 & F3-12800CL9D-4GBNQ 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/incompat...ck-clocks.html
    Last edited by Logicaluser; 08-04-2010 at 07:34 PM.

  2. #2
    Join Date
    Jun 2010
    Location
    Canada
    Posts
    66

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

    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]

  3. #3
    Join Date
    Feb 2011
    Location
    UK
    Posts
    1

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

    I had freezes and got rid of them by disabling the firewire option (chip) in the BIOS (F11 version)

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