CPU Load Line Calibration

[TonyTheGreek]

I have an i5 4690k OC to 4.2 with 1.1V which level should i select in load line calibration???

 

[Poprin]

There is no definitive answer to this. Load Line Calibration effectively means how aggressively the motherboard will try to maintain the CPU voltage.

None of these figures have any base in fact this is just purely as an illustration: Lets say for example your machine will BSOD if the voltage hits <1.1v under load. So if your voltage is set to 1.112v for example and your LLC is set to low, then possibly the voltage may drop to 1.099 causing your machine to BSOD. So rather than increasing your voltage to 1.150 you might increase your LLC setting to medium. This could then for example cause your voltage drop to only be 1.107 meaning your machine will not BSOD.

The answer to your question is to experiment. If your machine is stable at 1.1v under load and your LLC is set low then it might mean you could higher your LLC slightly and maybe achieve a lower voltage. But take into consideration a higher LLC setting puts the board and the power supply under more strain. If you have a poor power supply high LLC settings can expose it's failings.

Unfortunately there is no 'use these settings for this outcome' in overclocking it is all experimentation and a lot of research.

 

[TonyTheGreek]

Thanks for your answer i understood how its works with your example.. my only issue was the temp that vcore and vcore was almost 60C while my cpu was 50C.. is normal for vcore going that hot?

 

[maddogfargo]

Generally it is a good idea to observe the voltage fluctuation between idle and load. You want as little change as possible.

For different levels of OC on the same system I will use medium LLC up to a point, but then at higher speeds/voltages vDroop becomes more of an issue, and going to high or Extreme may be required. The only way for you to know when one setting isn't enough is to test/monitor the voltages when you OC.

Starting with Medium is good. Go up to High or Extreme if the vDroop makes it unstable.