Cpu voltage higher than set in bios

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Alan11985

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Jul 15, 2016
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I have set my cpu voltage to 1.35 in manual mode in the bios. I disabled all c states and put it in performance mode. LLC is set to level 6. When I check my cpu voltage in cpuz and hw info it is running at 1.41. Can I please have suggestions on how to fix.

CPU- I7 8700k
Motherboard- Asus z370I
Ram- HyperX 16gb DDR4
Storage- Sandisk ultra 1TB SSD
 
Solution
lumineZ
Vdroop isn't a static offset for voltage. Vdroop increases under load and LLC will dynamically compensate for that. Depending on the level of LLC, it might overshoot or undershoot at higher load levels so it requires some tweaking.

Having a manual offset voltage would mean setting a high enough voltage base that when Vdroop is at it's highest (100% load), it would be stable. But that means when the voltage is not at 100% load, you're at a higher than normal voltage.

Just remember you must put the CPU under heavy load (heavily, eg.: Prime95) to see vdroop and LLC's action.
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Alan11985

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I have tried that and it didn't work. I am still at 1.41 and above. Is there any other settings that I might have not done
 
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lumineZ

lumineZ

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Jul 25, 2017
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Vdroop isn't a static offset for voltage. Vdroop increases under load and LLC will dynamically compensate for that. Depending on the level of LLC, it might overshoot or undershoot at higher load levels so it requires some tweaking.

Having a manual offset voltage would mean setting a high enough voltage base that when Vdroop is at it's highest (100% load), it would be stable. But that means when the voltage is not at 100% load, you're at a higher than normal voltage.

Just remember you must put the CPU under heavy load (heavily, eg.: Prime95) to see vdroop and LLC's action.
 
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