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Thread: EP45-UD3P can't oc RAM over 1400




  1. #1
    Join Date
    Jul 2009
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    Default EP45-UD3P can't oc RAM over 1400

    I have a kit Transcend aXe 1200 1GBx2. At cas 5, it need only 2.54V to pass Pi 1M at 680MHz. When I raise the vdimm to 2.6,2.7,2.8V, it never pass Pi 1M at 690MHz, but can be valided at max 702 MHz.

    At cas 6, I meet the same problem, only 2.2V to reach 670MHz and 2.3V to pass 680Mhz. But 2.5V can't pass 690Mhz

    I don't understand some dram voltages reference and I think this is problem. I alway set auto to the settings. Can't somebody help me to ajust these Voltages?

    This is my setting:


    ******Motherboard Intelligent Tweaker (M.I.T.)******

    Robust Graphics Booster.........................[ Auto ]
    CPU Clock Ratio.................................[ 7 ]
    Fine CPU Clock Ratio............................[ + 0 ]
    CPU Frequency .................................[ 340 x 7]

    ******Clock Chip Control******

    CPU Host Clock Control..........................[ Enabled ]
    CPU Host Frequency (Mhz)........................[ 340 ]
    PCI Express Frequency (Mhz).....................[ 100 ]
    C.I.A 2................................................. .....[ Disabled ]

    ******Advanced Clock Control******

    CPU Clock Drive.................................[ 700mv ]
    PCI Express Clock Drive.........................[ 700mv ]
    CPU Clock Skew..................................[ 0ps ]
    MCH Clock Skew..................................[ 0ps ]

    ******DRAM Performance Control******

    Performance Enhance.............................[ Standard ]
    (G) MCH Frequency Latch.......................[ 200 ]
    System Memory Multipler....................[ 4.0C ]
    Memory Frequency 1150.........................[ 1380 ]
    DRAM Timing Selectable..........................[ Manual ]

    CAS Latency Time.........................[ 5 ]
    tRCD............................................[ 5 ]
    tRP.............................................[ 5 ]
    tRAS............................................[ 15 ]

    ******Advanced Timing Control******

    tRRD[3].........................................[ auto ]
    tWTR[3].........................................[ auto ]
    tWR[6]..........................................[ auto ]
    tRFC[54]........................................[ auto ]
    tRTP[3].........................................[ auto ]
    Command Rate (cmd)[0].............[ 2 ]

    ******Channel A Timing Settings******

    Static tRead Value [ 8 ] ................[ auto ]
    tRD Phase0 Adjustment [ 0 ] ................[ Auto ]
    tRD Phase1 Adjustment [ 0 ] ................[ Auto ]
    tRD Phase2 Adjustment [ 0 ] ................[ Auto ]
    tRD Phase3 Adjustment [ 0 ] ................[ Auto ]

    tRD 2rd (Differnt Rank) [ 6 ] ................[ Auto ]
    tWR 2wr (Differnt Rank) [ 6 ] ................[ Auto ]
    tWR 2rd (Differnt Rank) [ 5 ] ................[ Auto ]
    tRD 2wr (Same/Difft Rank) [ 8 ] ................[ Auto ]

    Dimm 1 Clock Skew Control.......................[ Auto ]
    Dimm 2 Clock Skew Control.......................[ Auto ]
    DDR Write Training..............................[ Auto ]

    ******Channel A Driving Settings******

    Drive Strength Profile..........................[ Auto ]
    Data Driving Pull Up Level......................[ Auto ]
    cmd Driving Pull Up Level.......................[ Auto ]
    ctrl Driving Pull Up Level......................[ Auto ]
    clk Driving Pull Up Level.......................[ Auto ]

    Data Driving Pull Down Level....................[ Auto ]
    cmd Driving Pull Down Level.....................[ Auto ]
    ctrl Driving Pull Down Level....................[ Auto ]
    clk Driving Pull Down Level.....................[ Auto ]

    ******Channel B Timing Settings******

    Static tRead Value [ 8 ] ................[ Auto ]
    tRD Phase0 Adjustment [ 0 ] ................[ Auto ]
    tRD Phase1 Adjustment [ 0 ] ................[ Auto ]
    tRD Phase2 Adjustment [ 0 ] ................[ Auto ]
    tRD Phase3 Adjustment [ 0 ] ................[ Auto ]

    tRD 2rd (Differnt Rank) [ 6 ] ................[ Auto ]
    tWR 2wr (Differnt Rank) [ 6 ] ................[ Auto ]
    tWR 2rd (Differnt Rank) [ 5 ] ................[ Auto ]
    tRD 2wr (Same/Difft Rank) [ 8 ] ................[ Auto ]

    Dimm 1 Clock Skew Control.......................[ Auto ]
    Dimm 2 Clock Skew Control.......................[ Auto ]
    DDR Write Training..............................[ Auto ]

    ******Channel B Driving Settings******

    Drive Strength Profile..........................[ Auto ]
    Data Driving Pull Up Level......................[ Auto ]
    cmd Driving Pull Up Level.......................[ Auto ]
    ctrl Driving Pull Up Level......................[ Auto ]
    clk Driving Pull Up Level.......................[ Auto ]

    Data Driving Pull Down Level....................[ Auto ]
    cmd Driving Pull Down Level.....................[ Auto ]
    ctrl Driving Pull Down Level....................[ Auto ]
    clk Driving Pull Down Level.....................[ Auto ]

    ******Motherboard Voltage Control******

    Load-Line Calibration...........................[ Enabled ]
    CPU Vcore [ 1.2125 ]........................[ 1.3250 ]
    CPU Termination [ 1.20 ]...................[ 1.2400 ]
    CPU PLL [ 1.50 ]...............................[ 1.50 ]
    CPU Reference [ 0.760 ]...................[ 0.76 ]

    MCH Core [ 1.100 ]........................................[ 1.2400 ]
    MCH Reference [ 0.760 ].................................[ 0.763 ]
    MCH/DRAM Refernce [ 0.900 ]...................[ auto ]
    ICH I/O [ 1.500 ]...........................................[ 1.500 ]
    ICH Core [ 1.100 ].........................................[ 1.100 ]

    DRAM Voltage [ 1.800 ].........................[ 2.6 V]
    DRAM Termination [ 0.900 ]...................[ auto ]
    Channel A Ref [ 0.900 ]..........................[ auto ]
    Channel B Ref [ 0.900 ]..........................[ auto ]


    ******Advanced BIOS Features******

    Limit CPUID Max to 3..............................[ Disabled ]
    No-Execute memory Protect..................[ Disabled ]
    CPU Enhance Halt (CIE)..........................[ Disabled ]
    C2/C2E State Support............................[ Disabled ]
    C4/C4E State Support............................[ Disabled ]
    CPU Thermal Monitor.............................[ Disabled ]
    CPU EIST Function...............................[ Disabled ]
    Virtualization Technology.......................[ enable ]

  2. #2
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    Default Re: EP45-UD3P can't oc RAM over 1400

    Have you tryed givin' MCH more voltage? Like 1.28-1.30V or even higher? Also, try setting tRD (Static tRead Value) manually and changing strap to B or D. The lower the strap is, the higher the stress on the MCH. And your quest for higher memory frequency makes it even harder for the MCH to handle all that.
    GA-EP45-UD3R (F12)
    Zalman CNPS-7000C-CU
    E8400@3.6GHz
    2x2GB A-DATA Vitesta 800+ CL4 Extreme Edition @ 1066MHz@2.0V (5-5-5-15)
    Asus EN9800GT Ultimate @ 810/2000/2200
    Seagate 250GB + WD 500GB + WD 640GB
    Asus DRW 1608-P
    BenQ G2010WP
    Thermaltake TR2 500W
    Windows 7 Pro x64

  3. #3
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    Default Re: EP45-UD3P can't oc RAM over 1400

    Quote Originally Posted by morph View Post
    Have you tryed givin' MCH more voltage? Like 1.28-1.30V or even higher? Also, try setting tRD (Static tRead Value) manually and changing strap to B or D. The lower the strap is, the higher the stress on the MCH. And your quest for higher memory frequency makes it even harder for the MCH to handle all that.
    Many thank

    I also change strap to 4.0B and set tRD to 10, but it is unuseful. Then, I set vNB to 1.4 and now I can Pi 1M at 690MHz (1.3V also can't Pi), vdimm 2.3V (6-6-6-18).

    I think tRD is Performance Lever. So the higher the tRD is, the higher DRAM I can reach? But in my mobo, I can't boot with the tRD set to 11 or higher

    More problem, I can't see the strap 4.0D in both bios F9 and F10b, EP45-UD3P rev1.1 :(

  4. #4
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    Default Re: EP45-UD3P can't oc RAM over 1400

    Unfortunatelly, there isn't a 4.0D strap. 3.33D is the higher you can get on D strap.
    Indeed, tRD is also refered to as Performance Level. Yes, it is possible that if you set a higher tRD you could overclock more than with a lower one, but that is because the stress you put one the MCH is lower with a higher tRD, and also depends of the voltage you are willing to apply.
    Take a look at this very interesting article, it sure helped me a lot improve my timings and overall system performance: AnandTech: ASUS ROG Rampage Formula: Why we were wrong about the Intel X48
    GA-EP45-UD3R (F12)
    Zalman CNPS-7000C-CU
    E8400@3.6GHz
    2x2GB A-DATA Vitesta 800+ CL4 Extreme Edition @ 1066MHz@2.0V (5-5-5-15)
    Asus EN9800GT Ultimate @ 810/2000/2200
    Seagate 250GB + WD 500GB + WD 640GB
    Asus DRW 1608-P
    BenQ G2010WP
    Thermaltake TR2 500W
    Windows 7 Pro x64

  5. #5
    kick's Avatar
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    Default Re: EP45-UD3P can't oc RAM over 1400

    that is some kind of d9 ram that is no longer made yes?

    perhaps the board + extreme voltage ram just dont work well together.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  6. #6
    stasio's Avatar
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    Default Re: EP45-UD3P can't oc RAM over 1400

    nhuhoang,why you didn't try with different Multiplier and Bus Speed;eg...
    9x438 (with 5:8 strap 333)
    Sample:
    VDimm=2.56v

    PctunerUP! | PcTuner.net Images Upload Sevice
    Last edited by stasio; 07-07-2009 at 10:09 AM.
    GA-Z170X-SOC Force , Kaby Lake...
    GA-Z97X
    -SOC Force ,
    Core i7-4790K @ 4.9 GHz
    GA-Z87X-UD3H ,Core i7-4770K @ 4.7 GHz
    G.Skill F3-2933C12D-8GTXDG
    @ 3100 (12-15-14-35-CR1) @1.66V
    2xSSD Corsair Force GS 128 (RAID 0), WD Caviar Black SATA3 1TB HDD,
    Evga GTS 450 SC, Gigabyte Superb 720W
    XSPC RayStorm D5 EX240 (Liquid Ultra)
    NZXT Phantom 630 Ultra Tower
    Win 7 SP1 x64;Win 8.1 x64;
    Win 10 x64

  7. #7
    Join Date
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    Default Re: EP45-UD3P can't oc RAM over 1400

    Thank all, but I can't Pi at 700MHz with vdimm up to 2.8V, strap 4.0B and 3.2B (5:8), vNB 1.44V, tRD 9 (max value bootable). Does these below setting effect my result?

    MCH/DRAM Refernce [ 0.900 ]...................[ auto ] (1.1V not boot)
    ICH I/O [ 1.500 ]...........................................[ 1.500 ]
    ICH Core [ 1.100 ].........................................[ 1.100 ]

    DRAM Voltage [ 1.800 ].........................[ 2.6 V]
    DRAM Termination [ 0.900 ]...................[ auto ] (1.1V not boot)
    Channel A Ref [ 0.900 ]..........................[ auto ] (1.1V not boot)
    Channel B Ref [ 0.900 ]..........................[ auto ] (1.1V not boot)
    @kick: I sure my aXe is D9GMH (at ramlist), I bought it 2 years ago

    Quote Originally Posted by stasio View Post
    nhuhoang,why you didn't try with different Multiplier and Bus Speed;eg...
    9x438 (with 5:8 strap 333)
    Sample:
    VDimm=2.56v

    PctunerUP! | PcTuner.net Images Upload Sevice
    @stasio: Could you show me the setting in Bios?

  8. #8
    kick's Avatar
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    Default Re: EP45-UD3P can't oc RAM over 1400

    MCH/DRAM Refernce [ 0.900 ]...................[1.3v]
    ICH I/O [ 1.500 ]...........................................[ 1.500 ]
    ICH Core [ 1.100 ].........................................[ 1.100 ]

    DRAM Voltage [ 1.800 ].........................[ 2.6 V]
    DRAM Termination [ 0.900 ]...................[1.3v]
    Channel A Ref [ 0.900 ]..........................[1.3v]
    Channel B Ref [ 0.900 ]..........................[1.3v]




    The Dram ref voltages if you use them are supposed to be up to 50% of the Dram voltage.
    ie for 2.2v 1.1v max should work or 2.8v 1.4v ref max.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

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