[SOLVED] I can't hit 4,1 GHz on ryzen

[AdamL1337]

Hi.
I saw a weird thing while overclocking ryzen 5 2600.
It is stable at:
-4,0 GHz and 1,3125v (72-77 degrees in OCCT)
-4,05 GHz and 1,3625v (about 80 degrees in OCCT)
But even on 1,40v it isn't stable at 4,1 GHz.
Did I get the bad one of ryzen processor or I do something wrong?
My specs:
CPU: Ryzen 5 2600
Motherboard: Asus b450-f gaming
PSU: corsair VS650
Thanks for help

 

[Petrossa]

That is more than likely the Silicon Lottery in play there.
Seems that your sample can't be stable at 4.1.
Perhaps slightly better cooling would help?

 

[CountMike]

You need better cooling obviously. At 75c it's already loosing stability needing even higher voltage and goes into a spin. Need to keep it at mid 60s and under 70c for full effect.

 

[AdamL1337]

Thanks guys, I will get better thermal paste or cooler and then overclock.

 

[TJ Hooker]

I would not run Ryzen 2K at 1.4V personally. 4.1 vs 4.0 GHz is only 2.5% faster, it's not like you're ever going to notice that anyway.

 

[CountMike]

Except for heat, there's nothing wrong running Ryzen at 1.4v , even AMD recommended (very cautiously) 1,425v. It's not going to deteriorate because of voltage. CPU is well protected against overvolting and overheating giving you ample warning that you have overdone it in either field.
The "Thing"is to find middle ground with voltage and temperature for best performance.

 

[TJ Hooker]

Except for heat, there's nothing wrong running Ryzen at 1.4v , even AMD recommended (very cautiously) 1,425v. It's not going to deteriorate because of voltage. CPU is well protected against overvolting and overheating giving you ample warning that you have overdone it in either field.
The "Thing"is to find middle ground with voltage and temperature for best performance.

For Ryzen 14nm maybe. For Ryzen 12nm there is some (admittedly anecdotal) evidence that you can see degradation in a matter of months by running a manual voltage of 1.4+V.
View: https://www.reddit.com/r/overclocking/comments/amtnt4/ryzen_generation_2_safeunsafe_voltages_tested/


I can't find any official max voltage from AMD, but according to a Tom's review AMD recommended a max of 1.35V for Ryzen 14nm for longevity.
"AMD predicts that most customers should see somewhere between 3.9 and 4.1 GHz across all cores, and suggests you stick with a 1.35V ceiling if you want your chip to last. Although core voltages in excess of 1.45V are considered sustainable, they'll have a more pronounced effect on longevity. "
https://www.tomshardware.com/reviews/amd-ryzen-7-1800x-cpu,4951-4.html

 

[CountMike]

I can't recall ever either AMD or Intel acknowledging or even talking about any deterioration due to higher voltages. Those are stories about first generations of transistors using all different materials. There could be some physical damage due to heat though. No specifications show any maximum allowable voltages only maximum temperatures, 95c for 2600 and 85c for 2700x.

 

[TJ Hooker]

I can't recall ever either AMD or Intel acknowledging or even talking about any deterioration due to higher voltages.

"Altering clock frequency or voltage may damage or reduce the useful life of the processor and other system components, and may reduce system stability and performance."
https://www.intel.com/content/www/us/en/gaming/overclocking-intel-processors.html
"Operating your AMD or ATI processor outside of specification or in excess of factory settings, including but not limited to overclocking, may damage your processor and/or lead to other problems, including but not limited to, damage to your system components (including your motherboard and components thereon (e.g. memory)), system instabilities (e.g. data loss and corrupted images), shortened processor, system component and/or system life and in extreme cases, total system failure."
https://www.amd.com/en/technologies/amd-overdrive

Those are stories about first generations of transistors using all different materials.

Huh? What different materials?

 

[CountMike]

Just standard "cover our asses" warnings, no set limits when it may occur.

 

[TJ Hooker]

Yes, they don't publish the exact limits. There probably aren't any exact limits, based on the number of factors involved and fact that there's a degree of randomness. Which is why we have to try to gauge the approximate safe limits based on findings like those I posted earlier.