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Thread: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM




  1. #41
    Chike is offline Senior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    Actually I am way over vcore that is required for my current flops, however if I lower it IBT fail, and if I lower it below or near VTT it's an instand 0x124 BSOD.
    I have tried briefly to lower VTT to 1.1 (the only option below 1.2) or push it quite high (1.36) to neutralize the effect of vcore on the bus, to no avail yet.
    At the end, it's all the settings that are required to both stability and provide the CPU enough power, and each system is different.

  2. #42
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    I had same mobo - same cpu - different ram - (G.Skill F2-8500CL5D-2GBPK 8GB's)I tried for months to get it stable - nogo (LSD and Chike tried helping). I finally updated to G.Skill F2-9600CL5D-4GBPI 8GB's and got instant stability. I could run 450, 480, or 500 FSB with no problem. (63 GFlops) Long story short - It may be your RAM. D Strap D Strap D Strap
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  3. #43
    Bonka is offline Junior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    I came across your thread wijubo you sure were persistent I have run Memtest without errors so I don't feel it's the RAM however I will be running it overnight once I get through a full successful run of small FFT just to rule it out completely. I think it's just that my particular setup requires more volts compared to others who are able to run at what I consider to be excellent specs. Once I find a stable setting I will drop down to tighten things up if I can.

    Man, every system I've overclocked has always required a little bit more oomph to keep it straight - I hope it's not me that's the problem

    Back on topic, after worker #3 popped up with a rounding error this afternoon, I bumped up the CPU Ref one notch and it's been good (crosses fingers) for almost 9hrs (crosses fingers again)

  4. #44
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    Sounds like your getting there Bonka, keep it up. When you get it stable please post your bios settings.

  5. #45
    Bonka is offline Junior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    Thanks Conners.

    Just passed 24+ hrs of small FFTs so I restarted and went right to large FFTs. Failed immediately on worker #2. Bumped up the MCH ref. No dice. Bumped up the MCH core. No dice. Bumped up DRAM volts. No dice. Bumped the vcore up 1 notch and it's been running for about 30mins.

    Could I trade off lowering the vcore and bumping up the vtt instead?

    Here are my current settings:

    Code:
    GIGABYTE GA-EP45-UD3P Rev.1.6 FFb BIOS
    
    MB Intelligent Tweaker(M.I.T.)
    
    Robust Graphics Booster ..................: [Fast]
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio......................: +0.0
    CPU Frequency ............................: 4.050GHz (450x9)
    
    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control........................: [Enabled]
    CPU Host Frequency (Mhz) .....................: [450]
    PCI Express Frequency (Mhz) ..................: [100]
    C.I.A. 2......................................: [Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: 800[mv]
    PCI Express Clock Drive...................: 900[mv]
    CPU Clock Skew (ps).......................: [0ps]
    MCH Clock Skew (ps).......................: [0ps]
    
    
    DRAM Performance Control
    Performance Enhance....................: [Standard]
    Extreme Memory Profile (X.M.P.)........: [Disabled]
    (G)MCH Frequency Latch.................: [Auto]
    System Memory Multiplier ..............: [2.40B]
    Memory Frequency (Mhz) ................: 1080MHz
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time..............................: [5]
    tRCD .........................................: [5]
    tRP...........................................: [5]
    tRAS..........................................: [15]
    
    
    Advanced Timing Control [Press Enter]
    tRRD...........................................: [Auto]
    tWTR...........................................: [Auto]
    tWR............................................: [Auto]
    tRFC...........................................: [Auto]
    tRTP...........................................: [Auto]
    Command Rate (CMD) ............................: [Auto]
    
    
    Channel
    Channel A Timings Settings [Press Enter]
    Static tRead Value............................: [Auto]
    tRD Phase0 Adjustmen..........................: [Auto]
    tRD Phase1 Adjustment.........................: [Auto]
    tRD Phase2 Adjustment ........................: [Auto]
    tRD Phase3 Adjustment.........................: [Auto]
    Trd2rd(Different Rank)........................: [Auto] 
    Twr2wr(Different Rank)........................: [Auto]  
    Twr2rd(Different Rank)........................: [Auto] 
    Trd2wr(Same/Diff Rank)........................: [Auto]
    Dimm1 Clock Skew Control......................: [Auto]
    Dimm2 Clock Skew Control......................: [Auto]
    DDR Write Training ...........................: [Auto]
    
    
    Channel A Driving Settings [Press Enter]
    Driving 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
    Channel B Timings Settings [Press Enter]
    Static tRead Value............................: [Auto]
    tRD Phase0 Adjustmen..........................: [Auto]
    tRD Phase1 Adjustment.........................: [Auto]
    tRD Phase2 Adjustment ........................: [Auto]
    tRD Phase3 Adjustment.........................: [Auto]
    Trd2rd(Different Rank)........................: [Auto]
    Twr2wr(Different Rank)........................: [Auto]
    Twr2rd(Different Rank)........................: [Auto]
    Trd2wr(Same/Diff Rank)........................: [Auto]
    Dimm1 Clock Skew Control......................: [Auto]
    Dimm2 Clock Skew Control......................: [Auto]
    DDR Write Training ...........................: [Auto]
    
    
    Channel B Driving Settings [Press Enter]  
    Driving 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
    Voltage Type..........Normal................ CPU
    Load Line Calibration......................: [Enabled]
    CPU Vcore.............1.2500...............: [1.35625] (past 24+ hrs of small FFT @ 1.35v)
    CPU Termination…......1.200V...............: [1.30]
    CPU PLL...............1.500V...............: [1.50]
    CPU Reference.........0.760V...............: [0.848] 0.785 @ 1.20 VTT
    
    MCH/ICH
    MCH Core..............1.100V...............: [1.28]
    MCH Reference.........0.760V...............: [0.863] 0.800 @ 1.20 VTT
    MCH/DRAM Ref..........0.900V...............: [0.900]
    ICH I/O...............1.500V...............: [1.5]
    ICH Core..............1.100V...............: [1.1]
    
    DRAM
    DRAM Voltage..........1.800V...............: [1.80]
    DRAM Termination......0.900V...............: [Auto]
    Channel A Reference...0.900V...............: [Auto]
    Channel B Reference...0.900V...............: [Auto]
    
    
    Advanced Settings
    Limit CPUID Max. to 3......................: [Disabled]
    No-Execute Memory Protect..................: [Enabled]
    CPU Enhanced Halt (C1E)....................: [Disabled]
    C2/C2E State Support.......................: [Disabled]
    x C4/C4E State Support.....................: [Disabled]
    CPU Thermal Monitor 2(TM2) ................: [Enabled]
    CPU EIST Function..........................: [Disabled]
    Virtualization Technology..................: [Disabled]
    Last edited by Bonka; 03-02-2012 at 09:13 PM.

  6. #46
    Chike is offline Senior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    If you had to increase vcore, look into lowering VTT instead, amd/or lowring the refernces.
    References are not like other voltages, they are only reference to another voltage and more definately does not mean better.
    Understanding GTL Reference Voltage

  7. #47
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    Only sugestion I currently have is to put Static tRead Value on both channels to 9 or 10. And up MCH ref one notch and test and maybe more Dram to 1.9 and test. Or might even try all of the mentioned but move MCH Reference down one notch or two and test.

  8. #48
    Bonka is offline Junior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    Just failed large FFT after 6+hrs on worker 2 :/ I'm going to run through your suggestions Conners and see if I have any luck. I wish it failed earlier!

    I was also searching around and it looks like others which the same batch # need the same kind of volts to get 450+ FSB, in which case it becomes a temperature issue, though it also looks like the higher VIDs run cooler than the lower VIDs. I may try reseat my heatsink and reapply compound, maybe even pick up something better. It's getting pretty toasty as it seems to need vcore to get stable.

  9. #49
    Chike is offline Senior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    First before you do anything try to run the FFT size taht failed.
    Select large FFT then customize, put the FFT size that failed in both min and max FFT fields and run, this may just save you 6 hours waiting.
    If it does fail, make a change and test again.
    You can adjust references and voltages with EasyTune (click "set" not save) and when the problem seem to be solved put those values in BIOS and retest.
    Note that MCH and CPU references in EasyTune are their values at 1.2v VTT.

    EDIT: most important thing is never change more than 1 option at a time.

  10. #50
    Bonka is offline Junior Member
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    Default Re: Maxing out with an EP45-UD3P, Q9650 and 8GB RAM

    What if it's been erroring out at difference lengths? I've been failing on worker 2 at 960K, 560K, 448K with worker 1 thrown in at 800K. Refs seem to prefer the existing settings (.785/.800 @ 1.2vtt). Adjustments either way on each seem to cause issues..
    Last edited by Bonka; 03-03-2012 at 04:47 AM.

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