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Thread: Looking for suggestions or tips to get this i7+UD3R sys. closer to 3.8-4ghz




  1. #11
    Join Date
    Dec 2009
    Location
    New York
    Posts
    12

    Default Re: Looking for suggestions or tips to get this i7+UD3R sys. closer to 3.8-4ghz

    Quote Originally Posted by flyfisher View Post
    I would first update BIOS to FDb using QFlash. FDb can enable dynamic Vcore but I would leave it alone for now. You might want to try the 19 or 21 multiplier, either my board or my CPU hate the 20 multiplier. Here are my settings for 205 x 19 = 3895 MHz. My CPU is not a good one, this is what I settled on with reasonable voltages and temperatures.
    Code:
    Advanced CPU Features:
    CPU Clock Ratio ................................ [19x]
    Intel(R) Turbo Boost Tech .................. [Disabled]
    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 ................... [Disabled]
    Bi-Directional PROCHOT ..................... [Enabled]
    
    
    Uncore & QPI Features:
    QPI Link Speed .............................. x36
    Uncore Frequency ..........................  x17 
    Isonchronous Frequency ..................[Enabled]
    
    
    Standard Clock Control:
    Base Clock (BCLK) Control ................ [Enabled]
    BCLK Frequency (MHz) ..................... [205]
    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 ...................... [Turbo]
    Extreme Memory Profile (X.M.P) ......... [Enabled] << Enable if your memory supports it
    System Memory Multiplier (SPD) ........ [8] << Set 8 (8 x 205 = 1640 Mhz Ram speed)
    DRAM Timing Selectable (SPD) .......... [Quick]
    
    Channel A + B + C
    
    Channel A Timing Settings:
    ##Channel A Standard Timing Control##
    CAS Latency Time ............................ 9
    tRCD ........................................ 9
    tRP ......................................... 9
    tRAS ....................................... 24
    
    Below values may be left in Auto if you like, generally this is fine.  For those users who DO Set advanced timings manually, please see some of my thoughts and findings about these settings and rules here
    XtremeSystems Forums - View Single Post - Gigabyte EX58-UD5/Extreme Discussion Thread
    
    
    ##Channel A Advanced Timing Control##
    tRC ........................................Auto   (Should be = tRAS + tRP or above for stability)
    tRRD .......................................Auto
    tWTR .......................................Auto   (Must be Write to Read Delay/Same Rank - (tWL + 4)
    tWR ........................................Auto   5-12 (Odd # values likely will fail)
    tWTP .......................................Auto   (tWTP Must = tWR + tWL + 4)
    tWL ........................................Auto   (tWL Must be CAS Latency -1)
    tRFC .......................................Auto
    tRTP .......................................Auto
    tFAW .......................................Auto
    Command Rate (CMD) ................... 1
    
    ##Channel A Misc Timing Control##
    B2B CAS Delay .............................Auto
    Round Trip Latency ........................Auto
    
    Advanced Voltage Control:
    
    CPU
    Load Line Calibration ................. [Disabled]
    CPU Vcore ............................... 1.3125
    QPI/VTT Voltage 1.150v .................. 1.295
    CPU PLL 1.800v .......................... 1.86
    
    MCH/ICH
    PCIE 1.500v .......................... 1.50
    QPI PLL 1.100v ....................... 1.10
    IOH Core 1.100v ...................... 1.10
    ICH I/O 1.500v ....................... 1.50
    ICH Core 1.1v ........................ 1.10
    
    DRAM
    DRAM Voltage 1.500v .............. 1.60
    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]
    I'm pretty stable right now @ 3.82Ghz (21x182) with turbo, eist, and c1 enabled. I'm yet to increased the qpi or touch the pll or ioh voltages to tweak stability at 4ghz but I can get into windows @4ghz (21x190). I think i read somwhere that increasing the ioh to max 1.2 with our boards added a lot to stability at 4ghz. I dont know if i want to resort to flashing my bios until i've exhausted every attempt to get stability at 4ghz with the current bios.
    i7 920(D0) @ 3.82Ghz (182x21) 1.214V
    GA-EX58UD3R Rev 1.6 (Bios. FB)
    G-Skill DDR3 (3x2gb)PC1600 (9-9-9-24-1t)
    Saphire Radeon HD5850
    WD Caviar Black 640Gb
    OCZ ModXstream 750W PSU
    Sony Optiarc DVD/CD RW
    Xigmatech Dark Knight

  2. #12
    Join Date
    Dec 2009
    Location
    New York
    Posts
    12

    Default Re: Looking for suggestions or tips to get this i7+UD3R sys. closer to 3.8-4ghz

    I forgot to mention that I think the major factor with this board is it's pickiness with memory. I think timings need to be manually input using expert mode for all channels, and the DRAM set to 1.64-1.66. You may be able to see you board cooperate more at 20x cpu multiplier.
    i7 920(D0) @ 3.82Ghz (182x21) 1.214V
    GA-EX58UD3R Rev 1.6 (Bios. FB)
    G-Skill DDR3 (3x2gb)PC1600 (9-9-9-24-1t)
    Saphire Radeon HD5850
    WD Caviar Black 640Gb
    OCZ ModXstream 750W PSU
    Sony Optiarc DVD/CD RW
    Xigmatech Dark Knight

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