Safe voltage after oc?
Safe voltage after oc?
I'm just starting with overclocking, so I did some random tweaks in the BIOS. Should I stick with these settings for X39 or make adjustments?
I'm concerned about the VDDCR voltage sometimes jumping to 1.4V—it's been stable at 1.243V in my x38 profile (offset -0.13125V). Under load, it can spike to 1.308V on svi2-tfn around 1.213V. CPU LLC is medium, so it should be fine.
For X39, I usually switch CPU LLC to high and increase Vcore. Tests have gone well.
https://i.imgur.com/1oDypoL.jpg
Ryzen 1600x
Asus rog b350-f
Gskill flareX 3200
When you overclock, your aim is to discover the best balance between performance and voltage. A 1600x increase to 39x won’t significantly improve results. For creators, the gain might be just a few seconds; for gamers, a maximum of about 1 fps from stock to 39x could be possible. To achieve real benefits, you need to reach 40x or higher, though this depends on your specific CPU and its capabilities.
When you're overclocking, your aim is to discover the best balance between performance and voltage. Simply increasing the multiplier to 39x won't significantly improve results. For creators, the gain might be just a few extra seconds; for gamers, a maximum of about 1 fps increase from stock to 39x could be noticeable. To achieve real benefits, you should aim for 40x or higher, though this depends on your specific chip.
In terms of overclocking steps, start by reviewing guides on YouTube and avoid asking others for the voltage needed at 39x. Each CPU is different—some can reach 1.35V, while others won't go below 1.42V. Begin by disabling the CPB, setting the multiplier to 37x, and lowering the Vcore slightly (e.g., 1.375 - 0.075 = 1.30V). Test stability before adjusting further.
Increase the multiplier by half and raise the voltage by a small amount (0.0125), then check for stability. For instance, if your target is 39x with a Vcore of 1.375 + 0.0125 ≈ 1.39V, test it under load. If stable, you're good to go.
When using an LLC controller, start with medium settings and avoid high voltages unless necessary. It's meant to add voltage and core voltage to prevent voltage drop. Never set the voltage to auto—it can damage your CPU. For 1600x, begin below the default voltage since it's higher than what you need for lower multipliers. Gradually increase until stable.
Be cautious: this specific motherboard isn't suited for extreme overclocking like 1.425V on Ryzen. If you push it that high, temperatures may rise dangerously. Stick to around 1.40V and stress-test for about 15 minutes. After shutdown, check the heat sink—your skin might feel warm.
Remember, this setup isn't intended for serious overclocking. It's best kept for fun, not for significant performance gains. Keep voltage low and temperature under control. If you're unsure, it's safer to stick with recommended limits. For my experience with a 3803 BIOS and this chip, the results were solid but not exceptional.
Also, ensure your system stays below 85°C during testing. If possible, limit the voltage to no more than 1.40V or invest in a better motherboard to avoid shortening its lifespan. Always proceed at your own risk.
Are vddrc spikes acceptable at 1.4-1.41 v? They occur about once every 15 minutes during the stress test, and the average voltage seems fine. I was told to focus only on svi2-tfn voltage—average is around 1.29 v. Anyone can clarify?
Is it acceptable to experience VDDRC spikes reaching 1.4-1.41V? The spikes occur approximately once every 15 minutes during the stress test. The average voltage seems acceptable, I believe.
I was advised to focus only on the SVI2-TFN voltage readings... So the average is around 1.29V.
Could anyone clarify this?
In fact, I never encountered BSOD and didn’t reset the BIOS during OC. I simply set X39 and adjusted the BIOS voltage to about 1.3V.
The spikes persist because you’re using CPB. If you’re overclocking, it’s better to disable CPB (Core Performance Boost). For all cases, try adjusting the voltage offset when overclocking—I mentioned this earlier, otherwise the system will apply excessive voltage in Auto.
As I’ve said before, turn off CPB, then reset CPU and SOC LLC to normal levels, then fine-tune the multiplier and adjust Core voltages while keeping others unchanged. When the system freezes at the optimal point, increase Core LLC only slightly and verify stability. If it works, avoid pushing LLC too high.
The VDDcr value in the motherboard’s HWinfo section reflects the actual voltage supplied to the CPU, which is typically higher than SVI2-TFN. This SVI2 voltage changes based on core load but remains stable under similar conditions. For a 1600x processor, it should be between 1.355 and 1.375 when VDDCr is set to 1.40.
The LLC core may also add extra voltage to maintain a higher margin over SVI2, ensuring more power reaches the CPU core if needed briefly.
This explains why I suggest sticking to regular settings if your system can handle it, especially with a 4+4 power phase design that keeps temperatures below 70°C even at those voltages.
I measured this using an IR thermometer and found the temperatures to be extremely high.
He aims to slow down the processor to avoid needing a CPU cooler fan.
got random black screens at any full power with x39 and regular llc too. noticed that at x39 bus clock goes unstable. during stress test cpu clock spikes to 3950 lol, disabled cpb. at medium llc there are no black screens but vddcr exceeds 1.4v sometimes. (ok nvm will try oc later with better cooling... thank you for the answers!)
passed occt-prime-lynx with x39 and 1.312v~
max vddcr during tests 1.38v, max svi2-tfn 1.31v
regular and medium llc don't work stable, this result only appeared at high llc.
^^ also
https://i.imgur.com/DxRZLjD.jpg
Thank you again for your help, it looks like I got it : D