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3900X Voltage Concerns

boysanic
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Hey guys!

 

So I bought a 3900X about a month ago after my 1700 gave up the ghost. I've heard concerns about running higher voltage on Zen2, since it has a much lower max safe voltage than previous generations.

image.png.8e0993b448a889d5f378439af671c80d.pngHWMonitor_x64_nnYZwjbZdZ.png.bf90de5afe5383aa2ce8eac08e70adb4.png

I'm noticing that at stock I'm going well beyond 1.4v, and HWMonitor even shows 1.5v on all cores on the max column. I've also heard HWMonitor is nowhere near accurate for Ryzen, so I'm not too sure on that.

Ryzen Master shows 1.44v or so at times, but will sit around 1.28v most of the time.

 

Is there a real danger to my chip by leaving it alone?

 

Thanks!

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What is the voltage settings within bios?

 

Also good read on 3rd gen Ryzen and voltages:

https://www.reddit.com/r/overclocking/comments/ejd5c9/1325v_is_not_safe_for_zen_2/

 

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Yeah, that 1.5V is normal and is only under light load on a single core.  There are no heavy workloads that run voltages close to that max you're seeing.  With that said -- you can lower it by using a negative VCORE offset.

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As an update, I updated the BIOS to the next version up (as I was only 1 version behind) and it seems to be at around the same voltage.

 

That's good to hear that it's safe.

I was worried about whether I should try to set the voltage manually to something lower, given how much less voltage these things can handle compared to last gen.

 

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16 minutes ago, nick name said:

Yeah, that 1.5V is normal and is only under light load on a single core.  There are no heavy workloads that run voltages close to that max you're seeing.  With that said -- you can lower it by using a negative VCORE offset.

Install the chipset drivers and use Ryzen power plan instead of windows.

 

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1 minute ago, boysanic said:

As an update, I updated the BIOS to the next version up (as I was only 1 version behind) and it seems to be at around the same voltage.

 

That's good to hear that it's safe.

I was worried about whether I should try to set the voltage manually to something lower, given how much less voltage these things can handle compared to last gen.

 

the cpus haven't been running long enough to know that the voltage is safe. If i had a gun to my head i'd say it's not safe and anything above 1.3v on full load all core (some 1.275v have already reported) results in degradation of the cpu, 1.3v+ all core just degrades it within months (took me years to degrade my old 2600k). a -0.05 offset is a safe and effective way to protect your cpu and lower temps without a hit to performance.

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Just now, boysanic said:

image.png.7786b6a5c38ebb9a9f4e649a2e47bccd.pngLooks like it's currently the option I'm on right now. I'll probably flip to the high performance one.

 

This was only after I installed the chipset driver (before I did the BIOS flash)

There you go. 

I'm surprised it's idling at 1.50v.

Wonder if LLC is on Auto and just jacking up the voltages. 

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25 minutes ago, boysanic said:

I was curious about LLC as well and so I looked:

 

 

 

It doesn't seem to give me the slightest hint as to what these modes really mean. I've got it on auto for now.

The LLC settings help reduce v-droop in cases where under a load the v-core will lower slightly, and sometimes greatly creating instability. So to stabilize the current, it's boosted at certain states. 

 

So Mode 8 would be extremely over-volting. 

I'd start around Mode 5 or 6 maybe manually.

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