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post #1 of 14 (permalink) Old 02-07-2020, 01:44 AM - Thread Starter
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max safe vcore for a 2700

ok so i have a ryzen 7 2700 amd im wondering whats the max vcore thats safe for 24/7 always on that wont degrade the cpu asking because i wanna overclock my cpu as high as i can get her to go also its the non x variant i hear 1.45 volts is the safe limit but im unsure

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post #2 of 14 (permalink) Old 02-07-2020, 01:57 AM
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here you go.

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post #3 of 14 (permalink) Old 02-07-2020, 02:51 AM
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My guess is 1.51v at the limit. Depends on temps too. Keep it under 1.5v and you should be fine.


Quote: Originally Posted by Zfast4y0u View Post
Why post a 52min video without a summary? Not all users have high bandwith net.

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post #4 of 14 (permalink) Old 02-07-2020, 04:09 AM
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Check out this thread here with research about a 2700X:

https://forums.anandtech.com/threads...#post-39391302

Look for the section that is named "Where is the limit?". That section talks about the "FIT" machinery of the CPU. There's many sensors distributed over the whole CPU, and the FIT measures all of those constantly. It then makes sure to limit voltage when things get dangerous.

On that one particular 2700X that the article is about, that CPU's FIT was limiting things to below 1.330 V in the worst case. For that 2700X CPU, those 1.330 V would then be the limit you shouldn't go over when doing a manual 24/7 overclock.

Those 1.33 V are perhaps the kind of limit you should also choose for your manual overclock. I'm thinking maybe reduce it a bit more to be extra safe, because every CPU is different. Those 1.330 V were just for that one particular 2700X CPU, it's different on a different CPU. Perhaps choose 0.02V lower, so 1.310 V?

Ideally, you would test what the FIT of your CPU thinks about heavy all-core loads. But the 2700 has the problem that AMD has limited it artificially, and it will refuse to boost for all-core loads, I think? That's different on the 2700X.

My guess would be that 1.45 V is not a safe 24/7 voltage. It's much too high, it's only safe for low loads but is not safe for heavy loads. The voltage that's safe for everything, including heavy all-core loads, is perhaps more towards 1.3 V, so a lot lower than the 1.45 V you are thinking about.
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post #5 of 14 (permalink) Old 02-07-2020, 05:10 AM
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Quote: Originally Posted by deepor View Post
Check out this thread here with research about a 2700X:

https://forums.anandtech.com/threads...#post-39391302

Look for the section that is named "Where is the limit?". That section talks about the "FIT" machinery of the CPU. There's many sensors distributed over the whole CPU, and the FIT measures all of those constantly. It then makes sure to limit voltage when things get dangerous.

On that one particular 2700X that the article is about, that CPU's FIT was limiting things to below 1.330 V in the worst case. For that 2700X CPU, those 1.330 V would then be the limit you shouldn't go over when doing a manual 24/7 overclock.

Those 1.33 V are perhaps the kind of limit you should also choose for your manual overclock. I'm thinking maybe reduce it a bit more to be extra safe, because every CPU is different. Those 1.330 V were just for that one particular 2700X CPU, it's different on a different CPU. Perhaps choose 0.02V lower, so 1.310 V?

Ideally, you would test what the FIT of your CPU thinks about heavy all-core loads. But the 2700 has the problem that AMD has limited it artificially, and it will refuse to boost for all-core loads, I think? That's different on the 2700X.

My guess would be that 1.45 V is not a safe 24/7 voltage. It's much too high, it's only safe for low loads but is not safe for heavy loads. The voltage that's safe for everything, including heavy all-core loads, is perhaps more towards 1.3 V, so a lot lower than the 1.45 V you are thinking about.
pretty much what buildzoid said on video i posted, all core load, above 1.3v is a no go.


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cause its interesting topic and its worth hearing the whole thing, you can learn thing or two. look it up at home, if you dont wanna drain ur phone internet.
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post #6 of 14 (permalink) Old 02-07-2020, 06:24 AM
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My R7 2700 with a negative offset of 0.03v in gaming. Use HWINFO and go by the CPU Core Voltage (SVI2).
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post #7 of 14 (permalink) Old 02-08-2020, 02:58 AM - Thread Starter
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Quote: Originally Posted by rdr09 View Post
My R7 2700 with a negative offset of 0.03v in gaming. Use HWINFO and go by the CPU Core Voltage (SVI2).
im currently at 1.368 volts vcore

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post #8 of 14 (permalink) Old 02-08-2020, 03:39 AM
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Quote: Originally Posted by kaitlin4599 View Post
im currently at 1.368 volts vcore
I think that vcore is absolutely fine. At stock, our cpu's vcore tends to jump as high as 1.5v. AMD already said that this happens at a very brief moment thus it won't hurt them. I am using the Spire cooler (better than the Stealth) and it helps to undervolt while still maintaining the 4.1 boost.

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post #9 of 14 (permalink) Old 02-09-2020, 04:19 PM
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Quote: Originally Posted by Zfast4y0u View Post
pretty much what buildzoid said on video i posted, all core load, above 1.3v is a no go.


@Redwoodz


cause its interesting topic and its worth hearing the whole thing, you can learn thing or two. look it up at home, if you dont wanna drain ur phone internet.

I meant give the OP a summary so he doesnt have to watch a 52min video to get an answer.



Buildzoid was probably a sperm when I started overclocking, I don't subsidize Youtube channels.


1.3v is a joke. Any AM4 motherboard will shoot up to 1.5v on auto. The ENGINEERS know way more than some build nub.

AMD has very good controls in place, and max voltage is only reached for max loads,most time it's around .8v.

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post #10 of 14 (permalink) Old 02-09-2020, 04:29 PM
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1.3v is most definitely not dangerous for a 2700, lol.

saying one voltage is good and one voltage is bad is useless anyway, because a CPU can handle a lot higher voltage without a load than it can at load and time and temperature is just as important.

if I can boot into my OS and shut down at 1.5v without any lasting damage does that mean 1.5v is safe for a 9900K? if I can shove 1.7v into it on LN2 and do a few benchmarks without any lasting damage is 1.7v safe?

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Last edited by The Pook; 02-09-2020 at 04:34 PM.
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