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Thread: X58 Extreme - Max DDR3 Speed at 20/21x




  1. #1
    Join Date
    Sep 2008
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    Default X58 Extreme - Max DDR3 Speed at 20/21x

    X58 Extreme with F6 BIOS
    i7 920 (D0 stepping)
    3x2gb G.Skill DDR3 20000 (F3-16000CL9T-6GBTD)
    2x 4870HD 512mb Crossfire
    1.5TB 7200.11
    800watt OCZ PS (80amps on 12v rail I think)
    WC for CPU/GPUs/NB

    I have been struggling to get my system to 200MHz FSB and 2000MHz DRAM speed and 4000GHz CPU speed.

    I've realized that the memory controller in the i7 chip has more to do with the mem speed than the MB... G.Skill is basically saying that their RAM does 2000MHz if the CPU FSB is at 143.. basically 14:1 ratio.. This would be fine if I was using an unlocked chip.

    My question is what is the highest mem speed that I can get with the x58 Extreme - and which 3x2gb kits are known to reliably work at that speed with the MB?

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: X58 Extreme - Max DDR3 Speed at 20/21x

    Are you using x20 multi for your CPU? if so, that may be the issue as it is very unstable.

    I am not sure of which kits to advise, but I do think it is more likely your settings then the ram itself. Using the x20 CPUY multi is difficult to get stable as is anything over 4Ghz QPI/Uncore speeds so you may be RIGHT on the limit for either of those. See this post for more info on that, just as a heads up incase this is the issue at hand here. This post is about just your issue 2000Mhz ram speed so I bet it is right up your alley >>
    Why is it that I cannot run my 2000MHz memory in my new Core i7 system? ~ XtremeSystems.org


    What full settings are you using that fail, and also please post a second table of 190 or whatever under 200 you have stable so I can try to advise >>>


    This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

    0X00000050 << Incorrect Memory Timing/Freq or Uncore Multi
    0X00000124 << Incorrect QPI/Vtt Voltage (To Much/Not Enough)
    0X00000101 << Not enough Vcore Voltage

    CPU = Model #
    Motherboard = Model, Revision #
    BIOS Version =
    Ram = Brand, Model#, Part#, And or Link

    Code:
    Advanced CPU Features:
    CPU Clock Ratio ................................ [20x]
    Intel(R) Turbo Boost Tech .................. [Enabled]
    CPU Cores Enabled ............................ [All]
    CPU Multi Threading .......................... [Enabled]
    CPU Enhanced Halt (C1E) ................... [Disabled]
    C3/C6/C7 State Support .................... [Disabled]
    CPU Thermal Monitor ......................... [Enabled]
    CPU EIST Function ............................ [Disabled]
    Virtualization Technology ................... [Enabled]
    Bi-Directional PROCHOT ..................... [Enabled]
    
    
    Uncore & QPI Features:
    QPI Link Speed .............................. x36
    Uncore Frequency ..........................  (Always 2x memory Multi or 2x +1)
    Isonchronous Frequency ..................[Enabled]
    
    
    Standard Clock Control:
    Base Clock (BCLK) Control ................ [Enabled]
    BCLK Frequency (MHz) .....................
    PCI Express Frequency (MHz) ........... [100]
    
    C.I.A.2 [Disabled]
    
    Advanced Clock Control:
    CPU Clock Drive ..............................[800mV]
    PCI Express Clock Drive ................... [900mV]
    CPU Clock Skew ............................. [0ps]
    IOH Clock Skew ............................. [0ps]
    
    
    Advanced DRAM Features:
    Performance Enhance ...................... [Standard]
    Extreme Memory Profile (X.M.P) ......... [Disabled]
    System Memory Multiplier (SPD) ........ [AUTO]
    DRAM Timing Selectable (SPD) .......... [Manual]
    
    Channel A + B + C
    
    Channel A Timing Settings:
    ##Channel A Standard Timing Control##
    CAS Latency Time ......................
    tRCD .......................................
    tRP .........................................
    tRAS .......................................
    
    ##Channel A Advanced Timing Control##
    tRC ........................................  (Should be = tRAS + tRP or above for stability)
    tRRD .......................................
    tWTR ......................................
    tWR ........................................
    tWTP .......................................
    tWL ........................................   (tWTP Must = tWR + tWL + 4)(tWL Must be CAS Latency -1)
    tRFC .......................................
    tRTP .......................................
    tFAW ......................................
    Command Rate (CMD) ................
    
    ##Channel A Misc Timing Control##
    Round Trip Latency ...................
    
    
    
    Advanced Voltage Control:
    
    CPU
    Load Line Calibration ................. [Disabled]
    CPU Vcore ...............................
    QPI/VTT Voltage 1.150v ............
    CPU PLL 1.800v .......................
    
    MCH/ICH
    PCIE 1.500v ...........................
    QPI PLL 1.100v .......................
    IOH Core 1.100v .....................
    ICH I/O 1.500v .......................
    ICH Core 1.1v ........................
    
    DRAM
    DRAM Voltage 1.500v ..............
    DRAM Termination 0.750v [AUTO]
    Ch-A Data VRef. 0.750v [AUTO]
    Ch-B Data VRef. 0.750v [AUTO]
    Ch-C Data VRef. 0.750v [AUTO]
    Ch-A Address VRef. 0.750v [AUTO]
    Ch-B Address VRef. 0.750v [AUTO]
    Ch-C Address VRef. 0.750v [AUTO]

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