Can't boot with adaptive mode...?

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Krister Arvesen

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Jan 20, 2014
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I've been overclocking my 4670K and after using the intelBurn test for stability I landed on a 4.5GHz overclock @1.25V, with these settings I could pass 15 runs with high stress in the burn test... however after finding this overclock stable I tried to switch back to "auto" first on voltage, but then it would give my CPU up to 1.35V which is far more than I'm comfortable with... Then I tried setting it back to 1.25 and enabled adaptive mode... but then it wouldn't even boot... I have no clue why this is happening as on manual mode with 1.25V it's all stable...
 
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Good you got it working. But i noted you need quite a voltage increase to get 4.5. I can run my 4670k at 4.5 with stock voltage, which i just learned earlier today.
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Krister Arvesen

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Jan 20, 2014
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I did overclock manually, but I wanted to put it back on adaptive mode so that it won't force a constant 1.25 volts even when the CPU is idleing... allready done the overclocking and found my stable values, now I'm just trying to get adaptive mode to work...
 
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Krister Arvesen

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tried settig it to both auto an adaptive in the bios, but auto gives way to much voltage and adaptive won't even boot...
 
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fusk

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Adaptive mode is for turboboost frequencies. So leave core voltage at auto, then set "additional" to 1.250 and reboot. 1.250 will only be used during turboboost & normal voltage during none-turboboosted frequencies.
Correct me if i'm wrong.
 
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Krister Arvesen

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I will try it out now...
 
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Krister Arvesen

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Ok finally got it working... Had to set it to adaptive mode and then you got a new option to set a cpu boost voltage, which would be the max voltage when boosting. Set that to 1.250 and set an offset of 0.002 to get a total 1.252 which is exactly what it's been running at up untill this point... Now it adjusts voltage, and though it will go above 1.25 in Prime 95 etc, that's because Prime can override your settings as far as I've heard...
 
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fusk

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Good you got it working. But i noted you need quite a voltage increase to get 4.5. I can run my 4670k at 4.5 with stock voltage, which i just learned earlier today.
 
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Krister Arvesen

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haha, picked you as a solution by accident, but anyway... also you're really lucky with your CPU then... you should try upping the voltage and see how far you can get... also how did you go about overclocking ? did you just set voltage to manual and bumbed it up to 45 ratio?
 
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Krister Arvesen

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you should test it out... because if left at auto it might be that your CPU is actually getting way more than 1.250... try using CPU-Z and run a game or something... it might not be what you thought it was... that's why you should always use manual to OC and find your stable overclock before turning on adaptive...
 
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fusk

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Setting the ratio eliminates the reason to use adaptive. It gets 1.222v under load and temps are under 65°
If i run a synthetic bench it will get more, but i have no intention in running synthetic benchmarks all the time.
 
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Krister Arvesen

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Yeah I just know that when I switched to auto it started applying massive amounts of voltage to my CPU... as in up to 1.37V which is insane... especially when I know it can run stable at 1.250 :p
 
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