Ryzen 5 1600x voltage problem? maybe?

roryos0123

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Jun 30, 2017
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Heya, so about 2 weeks ago I upgraded my system from an old FX-8370 to a Ryzen 5 1600x with a new motherboard and RAM. And I noticed just recently that my voltages from what everything is telling me seem to be hanging around 1.4 to 1.45 volts on the CPU which seems unnervingly high considering I've done NO overclocking at all. It also very occasionally spikes up to 1.5 but only for a fraction of a second which seems like simple electrical physics changes there.

I've looked into this online in several places and many people talk about them temps being high as well when idle. But in this case, mine aren't at all. Yes, I am running a corsair H100i v2 AIO with it but many of the posts I've found also have AIO's. When idle the temps can literally drop to as low as like 25c to 30c, which is hardly a high temp if it was using those voltages. Even under load when I run a prime 95 torture test, after about 10 minutes my temps only cap at like 51c, which is the highest I could get it. And I'm fairly certain this isn't a temp sensor problem either because when I was running an air cooler temporarily on it before, the temps were different accordingly, which my load temp getting to 58c/59c and idle temps being high slightly.

Could this literally just be a sensor problem? The auto default voltage in my BIOS is set to 1.375 volts. The only thing I could find online that would vaguely explain this is a reddit comment responding to someone saying that when your motherboard has voltage set to auto, the Ryzen chip it's self has an internal voltage offset. The system doesn't seem unstable at all.

I should also mention that my motherboard is an ASUS ROG Strix B350-f. So it's not exactly a low quality brand motherboard.

Any help would be appreciated.

EDIT: I should mention that I have indeed done both a BIOS update and a chipset update to both the latest versions and I still have the same issue.
 
Solution
Do you have LLC on in BIOS? This could account for brief spikes under load. It may be that you don't need it on, or need to adjust it lower.
And, yes, sometimes sensors can be slightly off. Yes, auto-voltage allows the voltage to fluctuate more.

If you aren't running into any issues I wouldn't worry about it.

jdog2pt0

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I assume you're using some sort of application to monitor your voltages. They're about as accurate as a carnival fortune teller. If you want to find out the actual voltage you have to probe the PSU connectors while the system is running. Otherwise, if your temps are good and the system is stable I would just take whatever worry you have and throw it in the trash. Don't worry, plenty of us have fallen for the misleading voltages.
 
Do you have LLC on in BIOS? This could account for brief spikes under load. It may be that you don't need it on, or need to adjust it lower.
And, yes, sometimes sensors can be slightly off. Yes, auto-voltage allows the voltage to fluctuate more.

If you aren't running into any issues I wouldn't worry about it.
 
Solution

roryos0123

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Jun 30, 2017
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It does seem like it's a misleading voltage sensor. The BIOS it's self is telling me 1.4 to like 1.43 ish. I'll check if LLC is enabled or not.
I'm fairly sure it's just messing up with the sensors since, as I said, the temps are good and the system is stable. With the exception of that random BSOD I got when I started AMD Overdrive, which seems to be a common problem. lol
 

roryos0123

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Jun 30, 2017
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I know this is an older thread now but I figured out exactly why it was giving me the voltage spikes. It was Ryzen XFR which is present of Ryzen 5 and Ryzen 7 where the CPU will intentionally boost it's voltage over it's rated voltage in order to self overclock slightly.
 

aeonikz

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I know this is an even older thread at this point, but oh man I have the same problem and have been scouring the internet for answers. I was beginning to think I was the only one. Shows 1.44v in my bios, and checking p0 in p-states, my default voltage is 1.35. I hope it's just busted sensors. However, it is definitely making it hard to overclock. Do you know how the dynamic vcore (dvid) works? Assuming the voltage sensors are inaccurate, it's kind of confusing as to where to start with my overclock since my crappy mobo doesn't let me set a static vcore. Only offset.