Questions About Voltage And Load Line Calibration

L1ghtF00t · May 21, 2018

Was wondering if it is safe to undervolt or leave voltage unchanged with a load line calibration (LLC) of "very high" or even "extreme" allowing for low voltage at idle for power saving and then a high overclock when put under load?

Not sure why anyone would want voltage drop (vdroop) under load with a medium or stock LLC?

What is the absolute most optimal combination here and why?

Thank you guys for helping. You always give great information. Links to sites and videos with more information concerning this topic is highly appreciated.

CountMike · May 22, 2018

Can't say much because of lack of system description but high LLc is OK if it doesn't let voltage raise above maximum recommended voltages for that processor.

L1ghtF00t · May 22, 2018

Sorry here is my build - PCPP BUILD LIST - I get that I shouldn't increase voltage above the max recommended but every video I've watched says keep your voltage as flat as possible with no change between idle vs load. I don't understand this. Wouldnt it make more sense to leave a stock clock with an extreme LLC so that you getting low voltage at idle for saving energy while still getting enough voltage for a high overclock under load? It'd be like a gas pedal then, let off the pedal to save gas but floor it when you wanna go fast. Any insight why I only hear keep the voltage flat?

CountMike · May 22, 2018

Where did you hear that about "flat voltage" ? It's only important not to drop bellow values needed for stability. The whole idea of LC is to ad some predetermined voltage only when needed.

L1ghtF00t · May 22, 2018

This is where I learned about LLC and he explains not to go too high because it could fry your chip if voltage goes above recommended and not too low as it can lower your overclock goal.
So he explains that keeping voltage flat prevents a droop so you don't lose MHz but also prevents excess voltage from being applied. Explaining Load-Line Calibration (LLC) And Not Killing Your CPU

CountMike · May 22, 2018

That's why I said " if it doesn't let voltage raise above maximum recommended voltages for that processor" and again ABOVE maximum recommended.

L1ghtF00t · May 22, 2018

Right ok, so do you think, assuming both situations are stable and within safe voltages, would it be better to have a constant "flat" voltage at idle and load with a high overclock say constant 5GHz OR to have an extreme LLC with a stock clock at say 4.2GHz @ idle and then it would go up to 5GHz @ 100% load?

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Questions About Voltage And Load Line Calibration

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CountMike

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CountMike

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