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Thread: Weird overclocking problem.

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    Default Weird overclocking problem.

    Ok so i run my i7 950 to 4ghz with x22 , 183qpi at 1.29 Vcore and Cpu VTT +50 with no problems and wanted to go a bit further so i tried to overclock to 4.2ghz by going x23.Raised voltages a bit but i kept crushing till i went 1.35 Vcore and Cpu VTT +250 when i realised that it was crushing cause the Vcore was dropping to 1.29 right when i hit the blend test and come back to normal when i abort the test.So no matter what the voltage was the test was running at 1.29 Vcore and getting blue screens.Anyone can help me with this any configuration i should know?Thanks.

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    Default

    Hi and welcome to PureOC

    What you are looking at is vdroop. Most Bios's have a feature that helps to counteract this called something like loadline calibration (the name can vary between manufacturers) This feeature seems to add a given percentage of voltage to your setting when the processor comes under load.

    I don't have i7 so I cannot advise on voltages but with this enabled you will likely be able to reduce your voltage set.

    Look at the other thread Core i7 4Ghz Club & Overclocking Guide the front page of which has a number of templates one of which for the classified seems to suggest that it is called vdroop control
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  3. #3
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    Default

    I have vdroop enabled the thing is that i keep having blue screens even with high voltages.

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    Default

    Well I suppose that 0.06v is not a huge drop so maybe yours requires a tad more volts but as I said I don't have i7 so maybe wait for the others to chip in here
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    wheelsdeal (20-12-2009)

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    Default

    Change your Vdroop settings to "without vdroop"
    that will keep the vdroop stable without much fluctuations

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    wheelsdeal (20-12-2009)

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    Default

    I will try without vdroop and see whats happens didnt try it before cause the vdroop off is red in the bios but you think its another voltage rather than vcore and cpu vtt that might cause the problem?

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    Quote Originally Posted by wheelsdeal View Post
    I will try without vdroop and see whats happens didnt try it before cause the vdroop off is red in the bios but you think its another voltage rather than vcore and cpu vtt that might cause the problem?
    yes that is correct it should turn red

  10. #8
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    Turned vdroop off adjusted voltages a bit but was having some high temperatures 87c at first 3min load so i guess the H50 limits were crossed back at 4ghz and will try again once my wc parts arrived and installed.

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