High temperature issue with the Ryzen 7 5800X
High temperature issue with the Ryzen 7 5800X
Refuse the yellow circle. The image is borrowed from assisting someone else.
I use the built-in phanteks 140mm RGB units. They move a lot of air and are fairly quiet. My rear fan is just a generic 120mm unit while I wait for another sk-140 fan. I’m considering pointing a fan at the board, but I doubt it will make much of a difference.
I believe lowering the base temperature of that cooler will be interesting. A 10°C reduction matters a lot—just from the fan. Because this Esports tower cooler has few heat pipes, it gets saturated before it can release heat effectively. Directly blowing on a hot spot works much better. Heat pipes aren’t as good at this. That’s why the Wraith Prism (which AMD cut back on for margins) performs so well and stays compact.
Using a factory cooler allows passive airflow to reach the heat sinks surrounding the CPU. An AIO might not provide sufficient airflow in such setups. https://www.ekwb.com/blog/what-is-mosfet...p-it-cool/ The main reason for cooling these components is to maintain efficiency. MOSFETs operate with a certain efficiency, and they carry high currents. All electrical energy turns into heat, and the total heat from the VRM is closely tied to how efficiently the MOSFETs function. When the CPU or GPU is under heavy load or when overclocking occurs, the VRM components heat up significantly. To ensure stable performance and extend hardware lifespan, keeping the VRM cool is essential. The VRM acts as a DC-DC converter made up of three key sections: the logic unit, the power unit, and the filtering section. If these parts become too hot, voltage instability can occur, potentially causing CPU overheating.
I received my NH-U12A today, mounted it and it was about 5°C cooler than the liquid freezer... This suggests a mount problem isn't the issue. I might have discovered a solution! Today I reinstalled the windows since my new SSD came in, and I began installing drivers. After setting up the AMD chipset drivers (downloaded from AMD's site instead of MSI's) and Ryzen Master, I saw a big drop in idle temperatures. I was idling around 38°C and under a P95 small FFT load it never exceeded 80-83°C, with PBO enabled, a 100 clock override, and no eco mode. I checked the BIOS and noticed the voltages were much lower (from 1.4-1.37 to 1.25-1.275). Hopefully this is the right approach and could assist someone with a 5800X from hell.
Upon closer inspection, the issue wasn't related to the drivers. It was about the motherboard PBO limits that lowered TCD and EDC values from 200 and 210W to 95W and 140W. This cut power consumption by 40W, which in turn caused temperatures to drop. Also, I observed that when PBO is active, GTA 5 continues to crash even without a boost override, which seems unusual.
I'm feeling quite warm with my 5800X as well. My processor is running on an ROG STRIX x570-I, paired with an Arctic Liquid Freezer II 120 Rev. 2 and a 2 Noctua NF-A 12x25 exhaust in a Cooler Master NR200. There are five fans in a compact case, blowing strong air everywhere. Idle temps sit around 29°C, rising to 32°C on the CPU. When I try to run anything, it jumps to 50°C, then spikes to 70°C when launching games or apps, and I hit 90°C during Cinebench R20. Performance numbers are within spec, but reaching near TJMax is tough. I'm also seeing temperature jumps even when opening Chrome, so the GPU shouldn't be the main issue. Another odd observation is the exhaust fans are pushing cool air while I run Cinebench for an hour. @Voluspa suggested a PBO2 Curve Optimized undervolt to cut power use, but CPU-Z still shows around 1.42V during spikes—maybe a manual adjustment is needed.