Ryzen Voltage Issue - Thoughts?

Tz000 · January 20, 2018

Hey all,

So I have had my Ryzen 1600 based system for quite some time now and have had great luck with overclocking it until I recently updated the bios of my MSI Gaming Pro carbon B350 mobo to the latest version.

What used to happen when I set the core voltage manually it would stay exactly at that set value when viewed in HW monitor etc.

What is now happening is that when I set the voltage to say 1.4v it does not show up as such in HW monitor it shows anywhere from 0.9v up to 1.45v its acting like its in auto but its not...

Does anyone have any insight to this?

Any help or suggestions much appreciated.

Thank you.

Tz000 · January 20, 2018

Re-updated my bios with no luck, tried Ryzen power plan and high performance power plan.

Also tried overclocking my girlfriends computer (SAME MOBO + CPU + RAM) and when the voltage is viewed in hw monitor it is whatever I set it to in the bios 1.300v comes up at 1.296v etc and does NOT fluctuate...

Anyone? I cant find any answer to this anywhere.

Cheers.

Ddarlington36 · January 20, 2018

Is it idle or performing tasks when you notice it the most? What you're describing sounds like vdroop. As if the new bios has created an offset of the true voltages does it get worse under load etc.

Vdroop can make an oc unstable if its severe enough try adjusting LLC load line calibration.

Tz000 · January 20, 2018

12 hours ago, Ddarlington36 said:

Is it idle or performing tasks when you notice it the most? What you're describing sounds like vdroop. As if the new bios has created an offset of the true voltages does it get worse under load etc.

Vdroop can make an oc unstable if its severe enough try adjusting LLC load line calibration.

Hey,

Honestly once it loads up it finds a voltage and sticks to it.. so its really not doing any harm in my opinion just wanted to know why it drops so much? I can understand a +- 0.250 volts but going from 0.9 ---> 1.45 and everywhere in between just seems odd imo.

I was playing around with it more last night and it seems that if I put in a lower overclock voltage say 1.35v for 3.9Ghz it will still fluctuate higher than that but will only go to say 1.416v instead of 1.44-45v or higher based on the voltage I set.

I also take back my statement that my girlfriends computer was recently built with nearly the same parts and it was not doing it but once I actually overclocked the cpu to 3.7 and set the voltage to 1.3v it started doing the same thing..

It honestly does seem to allow for very stable overclocks, which is great.

Cheers