Yes, additional voltage can harm your CPU even when temperatures remain normal.
Yes, additional voltage can harm your CPU even when temperatures remain normal.
You're experiencing concerns about voltage stability affecting your CPU performance. Some users report that even with optimal temperatures, voltage drops can impact CPU health. In your stress test, you reached high temps (80-85°C) while gaming stayed within a safer range (55-70°C). The issue seems tied to inconsistent voltage levels rather than just heat. Your experience with the NH-D15s suggests it offers more flexibility for overclocking, which could help stabilize performance.
When the CPU operates, its performance declines gradually. This decline happens as electrons and other particles shift because of the electrical flow. Higher voltages increase stress on the CPU's components and push more particles out of place, speeding up wear. Excessive load can cause permanent harm, making it hard for the processor to function optimally. For most modern AMD CPUs, the safe limit is around 1.4 amps or so. I usually stick to under 1.4 for short tests only. The typical sustained limit is near 1.35 amps; keeping below that helps maintain longer life. A range of 1.35 to 1.4 might add minimal wear, but it’s not ideal. Keep in mind that using stock speeds and watching voltage can briefly push the CPU up to 1.45 volts—just a flash, not a lasting risk. Note: Precision boost overdrive voids the warranty because it employs a 1x-10x multiplier; higher multipliers let the CPU sustain higher frequencies and boost levels longer.
i don't rely on pbo and just have a full-core oc. unsure if i can hit 4.8 at 1.35, but maybe lowering it to 1.38 or 1.375 could work.
You're in the right place for performance. A clock speed between 1.4 to 1.45v should give you around 5ghz, but keep it under 70c when things get busy. Generally, higher voltages and faster clocks mean better results, but they also bring more heat. These chips run close to 5-5.1ghz without needing cooling. Performance drops with overvoltage, so manual overclocking is risky—stick to 1.30v or lower if you want stability. Boosting memory speeds (like 2x8 16gb at 3733mhz) with good timing can really help, even without PBO. Just be aware of efficiency losses from overclocking.
I can't reach that high setting since my VRMs aren't powerful enough and I don't want to overheat them. My B450m DS3H is on the lower side, so I don't want to strain it too much. The temps are okay at 5GHz, but they're not great. 4.9 works but needs more voltage than 4.8, probably because of my board. I've tried 1.35V and it's functioning well so far.
It doesn't support 5GHz since it's not a 5GHz component. That's where the issue begins. For extreme cooling, you'd need dry ice to reach around 5.4GHz. The 4.8GHz range is acceptable. A 4.9GHz chip adds about 100MHz, unless you're aiming for top competition results—then it makes sense. Lowering the voltage core improves stability regardless. Some chips run at 1.32V at 4.8GHz depending on leakage and temperature. When a chip overheats, it increases the voltage or core to handle it, leading to more heat and eventual instability. It's a cycle of escalation.