Why is my AMD 5800x3D hitting 90C during stress tests?
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CoolFuzzy87
Hey everyone! I've been keeping an eye on my Ryzen 7 5800x3D because I've noticed it seems to run pretty hot. While idle, it's sitting around 45C, which feels high to me. I decided to stress test it with OCCT, and the temp skyrocketed to 90C within just 5 seconds! I even changed the thermal paste, which was in bad shape, but it hasn't helped at all. My only overclocking is with the Precision Boost Overdrive (PBO) set to Auto. My fans are managed by FanControl and seem to be running at 100%, but it doesn't sound that way to me, given their size. Am I overlooking something, or is this kind of temp normal? Config details: CPU: Ryzen 7 5800x3D, Cooler: be quiet! Dark Rock Pro 4, Case: Fractal Torrent Compact, Motherboard: MSI B450 Gaming Pro Carbon AC, Thermal paste: Thermal Grizzly Kryonaut. Thanks for your help!
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Honestly, those temps are just on the high side of normal for a CPU like that, especially under stress. Just keep an eye on it!
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Yeah, these chips have thermal limits they stick to. Disabling PBO might help you avoid those spikes without sacrificing much in performance. It can push the CPU into higher thermal states quickly, and you might not see much benefit for typical tasks.
CoolFuzzy87: That’s exactly why I went with a premium cooler initially! I’ve noticed turning off PBO does help boost clocks, but it’s sad to see no change in temp.
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That's pretty typical for Ryzen CPUs; they report the hotspot temp rather than an overall average. So don't panic just yet!
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I've heard similar stories. Just make sure your cooler is seated properly, and try disabling PBO for a bit. Also, crank your fans to 100% and check the CPU voltage with hwinfo at both idle and full load—if it’s too high, that could be a big factor.
CoolFuzzy87: Thanks for the advice! The weather is cool where I am now, around 18-20C, and I made sure the cooler was mounted right. The paste spread evenly too. I’ll look into the voltages—here's a link to some screenshots I took: [link](https://imgur.com/a/RI76ykQ)
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CoolFuzzy87: I hear you, but I'm worried because it's winter now and I don’t want it to become a furnace in the summer. Dropping temps by 5-10C would definitely help with noise and extend my fan's lifespan.