What is the maximum Vcore setting for a Ryzen 7 3800X?
What is the maximum Vcore setting for a Ryzen 7 3800X?
I currently have the Vcore at 1.45V with the CPU clock ratio at 44.5 from 39. It's stable now. It becomes unstable at 45. Should I continue increasing the Vcore? All other settings remain unchanged, including Vcore SOC and Global C-Control State. The motherboard is X570 Aorus Pro Wi-Fi. Thank you.
Leave the CPU cores at stock until we know what is safe.
I would expect one or two months for it to degrade. A constant vcore of 1.45 volts is very high. No one knows whats safe with these cpu's and there are reddit posts were people have degraded cpu's at much lower voltages (1.3volts).
There is also this whole procedure whereby you determine your FIT voltage and the Fmax at that voltage. Above FIT voltage or maximum FIT voltage but higher frequencies can cause degradation. I can't say if it is true but its your risk.
If you had a 3900x I would not manually overclock that cpu, its £500 and same with a 3800x that can do an IF of 1900.
View: https://www.reddit.com/r/Amd/comments/cn...dium=web2x
The issue with fear is that the processor will start to degrade. In practice, it doesn't really depend on the voltage applied as long as the temperature stays low. The main factor that harms a processor is the heat generated by high voltage. As long as I manage to reduce the temperatures during stress, the processor's lifespan remains consistent. However, running at higher frequencies can speed up processing, but it also increases the risk of damage. Even with a basic cooler, applying 1.8V should be safe if temperatures stay within limits. This is my current understanding.
The voltage requirements suggest phase change cooling would be necessary. Above 1.8 volts for LN2 is likely fatal. Voltage generates excessive heat, leading to transistor failure, trace destruction via electromagnetic effects, and material breakdown causing shorts. Power consumption is proportional to the square of current (power dyn = cfv²), making voltage a major factor. Constant temperature changes can trigger failures and accelerate oxide degradation. For a 3800x, overclocking RAM or using 3800/1900 results in over 11000 cycles, which is problematic. The boost to 4.4GHz in games renders a full 4.4GHz overclock pointless since the GPU is already limited. The mention of Ryzen Vcore voltages after 39:40 minutes is relevant.
1.4v is significantly too high. I've already read on Reddit posts showing that Ryzen 2700X from the previous generation start to degrade below 1.375v. For the third generation, users suggest the maximum should be around 1.325v, so aiming for 1.3v or lower would be wise. However, we still lack definitive numbers. I strongly advise using AutoOC and PBO, as manual overclocking is less reliable and can reduce lifespan. With third generation Ryzen, the chip naturally handles degradation by increasing voltage over time. Manual overclocking removes this protection. This explains why Precision Boost 2 can sustain much higher voltages than what manual methods allow.
If you're not concerned about maintaining the CPU for years, you might consider pushing it to 4.4GHz across all cores at around 1.4 volts. Ensure proper cooling with an AIO or a full custom water loop and monitor the results to check for any issues. Observe if performance drops.
Overclocking to 4.3GHz in water isn't very effective, as most benchmarks show you're only about 25-50Mhz better (e.g., time spy cpu). The stock speeds of 11300-11400 depend on ambient conditions, especially in colder weather.
With PBO scalar x10, you can achieve a score between 11300 and 11500 for time spy cpu, depending on temperature. At 50Mhz, it's worth around 100 points. At 11900, you get 4.5GHz all cores, based on my test. 4.45GHz at 4.5GHz and 4.4GHz at 4.45GHz are also possible.
The key to successfully overclocking the 3800x lies in achieving an IF 1900 boost and using high-quality RAM that allows optimal timing at that frequency. A perfect 4.5GHz all-core overclock paired with excellent RAM can yield a score of 11.9-12k for time spy cpu. If you fine-tune the RAM (b-die supports up to 1.8V if you manage RAM window usage), a run above 12k is achievable.
If the 3800x reaches 4.5GHz all cores, Intel would likely underperform compared to other options.
I sent an email to AMD. I should have phrased it more clearly.
Absolutely, at 4.4GHz and 1.4v the processor performs well. It remains stable even at 4.45GZ and 1.45v. Still, I have some concerns about the 1.45v setting—it's pushing the limits for my 3800x and could cause significant degradation. I personally don’t like overclocking, though I did it just for testing. I recently purchased a 360 AIO from Enermax. The only downside is a 5°C reduction compared to a Synthe Ninja 5. I was hoping for much better results with the water cooling, but unfortunately, it didn’t live up to expectations.