Rule 1: PC build questions and Tech Support posts are only allowed in the Questions and Tech Support Megathread - you can find the latest linked in the sidebar or pinned on the front page. r/AMD is community run and does not represent AMD in any capacity unless specified. Welcome to /r/AMD - the subreddit for all things AMD come talk about Ryzen, Radeon, Zen4, RDNA3, EPYC, Threadripper, rumors, reviews, news and more. All the air coming out of my system when stress testing is cool to lukewarm meaning it is now doing its job in my eyes./r/AMD AMD Red Team FILTER BY: NEWS REVIEW RUMOR PHOTO Latest Drivers & Tech Support I know using CPU temp, or even VRM temp is not ideal, but it seems to work. So, unfortunately, I cannot base it on any loop temp or even case temp as the air is being blown directly outside of the chassis. My cooler is a fractal design s36, so I don't have a thermister inside my loop or one that I can monitor at the least. The same thing applies to liquid cooling for your system. Your car's thermostat controls the radiator fan and the coolant flow based on the coolant temperature, not the temperature of the actual engine where fuel is being burned. Your "engine temp" in your car isn't the actual temperature of the engine, but the temperature of the coolant. If you don't have this available, a thermistor in the exhaust of the radiator will give you a good approximation of the coolant temperature. Most of Corsair's AIOs provide the coolant temperature as a control value and you can use this. So the fan speed should be based off of the coolant temperature. What do the fans on a radiator actually cool? Is it the CPU? No! It's the coolant. I have 11 fans in my system, the bottom intake, bottom front intake and rear exaust are based on my gpu temp, and the top 2 intake and 6 fans on my radiator in push-pull on my cpu temp, i will see if i can figure something out using the temp probesįor a water cooled system, your radiator fans shouldn't be based on the CPU temperature either. This temp sensor doesn't exceed 100c (actually 50c) so I can keep control of my fans even when it goes above 50c So I found that my VRM temperatures scale 1:1 with my CPU temp with a -10c offset, so I figured I could just use the VRM probe as my temp sensor. I have 11 fans in my system, the bottom intake, bottom front intake and rear exhaust are based on my GPU temp, and the top 2 intake and 6 fans on my radiator in push-pull on my CPU temp, I will see if I can figure something out using the temp probes These make for excellent source values as you can place on in the warmest part of the case and use that to control your case fans. But that doesn't mean that it's the best choice. Like when you're gaming.Įveryone defaults to the CPU temp because, for a long time, that was the only choice that we had. By basing case fans on the CPU temperature, you may not get enough airflow when it's your GPU that's doing all the works and heating things up. If you have an air cooled system, the CPU temp is related to the internal case temp. Question for you: What is it that you are directly trying to cool with your case fans?Īnswer for you: That'd be the internal case temperature.
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