My computer adjusts the CPU voltage independently, and I don't know the exact setting.
My computer adjusts the CPU voltage independently, and I don't know the exact setting.
Hello, I'm not completely new to overclocking, but not a pro. My setup is a Ryzen 5 2600 (3.4 GHz is normal clock), GTX 1660, and a Gigabyte AB350M-DS3H V2-CF motherboard. I've been overclocking my CPU quite a bit, or trying, at least, because there are always 2 problems which seem to be unfixable. Number one is that whenever I set the CPU frequency higher and add some voltage, the voltage is suddenly a whole lot higher than I set it to, and my BIOS doesn't have any voltage regulation options like LLC or vdroop, only performance boost, which I disabled. I looked carefully, and still didn't find any setting that could be doing this. Number 2 is that there's always confusion as to what my actual CPU voltage is. If I put the frequency to 4 Ghz, the voltage goes to 1.248 volts even if I set it lower or higher than that. That's where it gets really confusing. The BIOS says it's 1.248, and the Vcore voltage in hardware monitor says it's 1.248. But the CPU Core Voltage (SVI2 TFN) says 1.112 volts, but I can't tell if it is correct, even if it seems to be a more accurate measurement of the CPU voltage, as far as I know. And with that my PC completes a full cinebench run with no stability issues. So it's as if something knows exactly what my CPU voltage needs to be at what frequency, but I don't know anything at all what could be doing that. I would really appreciate if someone could explain what is happening to my CPU voltage and where I need to look to know the actual CPU voltage. Also, when I tried 4.1 GHz, raised the voltage in the BIOS, the CPU Core Voltage (SVI2 TFN) went down, while Vcore went up, but it wasn't stable. By the way, I use the Dymanic Vcore setting in bios (if I rememebr correctly) to change the cpu voltage, there seems to be other.
Don't get mixed up with CPU voltages. They all apply at once. There’s no issue here. The main concern is your own choice—insisting on the voltage you set as the one displayed. That’s not how it works, especially since it’s a Ryzen, not an Intel chip.
There are various CPU voltages involved: different ones used, required, supplied, socket-specific, core-specific, etc., all referred to as CPU Voltage. Even vcore isn’t always fixed, and HWInfo64 lists several SVI2 voltages.
LLC is essential in every system, regardless of whether you have a BIOS option to adjust it. It remains unchanged, with just one setting, unlike some BIOS features.
Nothing wrong with those voltages, even pretty good for that CPU ?
I understand the concern about the 1.248 volts at 4 Ghz, but it's important to determine which voltage measurement is reliable and why the system automatically adjusts.
Ryzen allows a range up to 1.5v. The maximum voltage is usually higher during idle, and there are no major issues unless overheating occurs.
The core voltage is set by algorithms inside the CPU, and you can modify just the "Package" setting in the BIOS.
In stock setup, Ryzen CPUs adjust their voltage and frequency dynamically rather than using a static value. This means you can't reliably fix a precise voltage, and most AM4 boards aren't designed to support it. The inclusion of an LLC controller in compatible boards doesn't significantly help either. In reality, Ryzen tends to follow VDroop behavior when configured correctly. Running a fixed voltage isn't ideal—it may limit performance compared to using the boost algorithm with PBO. If you decide to proceed, aim for the highest safe voltage and monitor temperatures closely. Consider using monitoring tools like HWInfo64 to track peak and average values during testing. The recommended voltages are 1.33V and 1.38V for standard use, while 1.425V with better cooling is noted to degrade after about three months at typical temperatures.
Don't get mixed up with CPU voltages. They all seem right at the same time. It's not an issue. The only real concern is your own choice—specifically sticking to the voltage you set as the one displayed. But that's not the case; it's more about what you expect versus reality.
There are various CPU voltages in play: some are used, others are required, and still others are provided by the socket. Core voltages, for example, are often mentioned alongside CPU Voltage. Even the vcore value isn't always fixed, as indicated by the SVI2 voltages listed in HWInfo64.
LLC technology is essential across all systems. Whether you have the option to adjust it or not doesn’t matter much. It remains constant, with only one setting that users can’t change through the BIOS. It stays hidden, just like other BIOS options in an Asus Extreme motherboard that you can’t see.
You’ll notice differences between the voltage you set and what actually appears. Some values reflect real usage, others are demands, and some account for auto LLC settings.
Intel CPUs are fixed in terms of performance. You adjust voltage and clock speeds to boost performance, but you’re also responsible for cooling.
Ryzen CPUs, on the other hand, adapt dynamically. They increase speed based on workload, temperature, and voltage. In light usage, they can run at full speed on a few cores, using up to 1.5V to stay stable—provided cooling is adequate. However, limiting voltage for overclocking means static voltages cap maximum GHz, causing performance drops even if all cores are active. Games rarely utilize every core, so overclocking often leads to lower FPS despite higher overall core counts.
For better results with Ryzen, focus on optimizing RAM timings, applying undervolting via offset or VID, and using a good cooler. This lets the CPU use the voltages it needs when required, without being too high or static, while reducing heat. The outcome is improved core performance to higher limits, resulting in better FPS regardless of Cinebench scores.