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Thread: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!




  1. #71
    Chike is offline Senior Member
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    Small FFT data is if not all then mostly in yn the CPU cache, so there is not much memory access, if it passed than vcore was probably enough.
    So it is 0.05v increments for both? Give MCH +0.1v it might even need more.
    BTW after the system is stable you can try and give tRD 6 another chance. MCH is the memory controller so it might do better with the overvoltage.

  2. #72
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    Ok, here is an update:
    1. I gave 0.1v from system default to the FSB and to the NB.
    2. The blend test didn't fail on the first test as it used to, but only after 1h and 14min. See image.
    3. How much voltage should I give more?
    4. What is Loadline Calibration? Currently set to Auto.

    CPU: Intel E8500 @ 3.16GHz
    RAM: OCZ Titanium 2x2GB & G.Skill 2x2GB @ 800MHz
    MB: Gigabyte EX38-DS4 (BIOS F3)
    GPU: ATI Palit 4870 1GB Dual Edition
    PSU: ThermalTake 750W
    Cooling: Ximgatek Achilles 1284S
    Case: CoolerMaster 690

  3. #73
    Chike is offline Senior Member
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    I am not familiar with the X38 as for safe voltages, but I believe MCH OverVoltage +0.15v should be safe.

    Load Line Calibration (LLC) is used to maintain the same level of vcore at all times. When disabled idle vcore will be lower than BIOS settings, and load vcore lower than idle. When enabled vcore would be at the same level regardless of CPU load.
    This is in theory, in reality there may be short spikes in vcore when CPU load decrease that may overvolt vcore, those will be too short for the sensors to detect them.
    With your current vcore it should not be a problem though.

  4. #74

    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    got my self EX38-DS4 and a Q9650, LLC Enabled, Bios vcore 1.300,

    under Prime95 Small FFTs its falling to 1.248v and 1.280 IDLE

    so LLC is not that helpful, but yet makes some differance.

  5. #75
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    So bottom line, should I live LLC on auto?

    And here is an update. I raised the MCH voltage like you said and also the FSB, and I ran the blended test for more then 2 hours and no errors so far. I had to stop the test since I need the computer, but I'll run it during night time. If it will pass the 6 hours, I will set the tRead value to 6 and run the test again... but I'm not sure it will pass the 6 hour to begin with.
    CPU: Intel E8500 @ 3.16GHz
    RAM: OCZ Titanium 2x2GB & G.Skill 2x2GB @ 800MHz
    MB: Gigabyte EX38-DS4 (BIOS F3)
    GPU: ATI Palit 4870 1GB Dual Edition
    PSU: ThermalTake 750W
    Cooling: Ximgatek Achilles 1284S
    Case: CoolerMaster 690

  6. #76
    Chike is offline Senior Member
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    Leave the tRD for now, you have excelent memory performance anyway, and it don't make much difference in every day use.
    I have no knowledge at all about the FSB voltage, but leave it as is for now if stable.

    For anyone who knows, is FSB voltage in the X3/48 boards is the equivalent of Vtt in P4x boards?

  7. #77
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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  8. #78
    Chike is offline Senior Member
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    What is it defalut to on X38, and is there a need to set it higher than +0.1 for that kind of OC?

  9. #79
    Lsdmeasap's Avatar
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    Default I believe is 1.25V, 1.32 is Intel's rated max
    http://www.intel.com/Assets/PDF/datasheet/317610.pdf

    As for your last comment, not sure what overclock you are asking about?

  10. #80
    Chike is offline Senior Member
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    Default Re: EX38-DS4 - OCZ Titanium 1150MHz - Can't set it right!

    Quote Originally Posted by Lsdmeasap View Post
    As for your last comment, not sure what overclock you are asking about?
    OC is currently 433x8 2.66D(DDR-1150), MCH OverVoltage +0.15v, FSB OverVoltage +0.1 or +0.15 I'm not sure.

    In the PDF, 2.7 Power and Grounds
    VCC 1.25 V Core Power
    VTT 1.1 V/1.2 V Processor System Bus Power
    So this means MCH Core 1.25v and Vtt may be either 1.1 or 1.2v.
    I don't have experiance with the X38 and safe ranges for FSB/MCH OverVoltage.

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