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Rolling with my new Ryzen 9 5050X! I pushed my old setup as long as I could and it was overclocked to the hills but still holding me back. I finally upgraded!

Scott Helme

@Scott_Helme

Apr 19, 2021

A question though, I'm seeing idle temps of ~60c and fully loaded tempts 80c-90c. That's a lot higher than I'm used to, is that normal?

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If you're used to i7 from a generation back, Ryzen runs pretty hot by comparison. All that TDP has to go somewhere!

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FWIW, most AIOs will underperform a high-end air cooler like an NH-D15 or NH-U14. For a 240mm the noise might even be slightly worse, since HSP fans are a little louder for the same CFM throughput. An AIO is just aesthetically cleaner and a bit flashier.

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Custom watercooling loops absolutely can outperform air coolers, though. It's just very expensive and only really worth it if you're overclocking or running high-TDP parts like a 3995WX or EPYC.

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Threadripper / EPYC with many cores really need coolers designed for them. They generate a huge amount of heat but over a larger surface area. noctua.at/en/nh-u14s-tr4 is Noctua's best offering for those. Does the job for 3970X (32 cores) without overclocking much but not beyond.

noctua.at

NH-U14S TR4-SP3

Continuing the legacy of Noctua’s classic NH-U-series, which has received more than a thousand awards and recommendations from international hardware websites and magazines, the NH-U14S has become a...

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With a second fan you can run a 3995WX with a U14S, as long as you've got good case airflow. It'll run hot, so you won't get perfect multi-core boosts, but it'll still work. Ideally I'd run a 360 radiator just for the CPU, though.

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icegiantcooling.com appears to be a better option than the NH-U14S for 64 core Threadripper or overclocked 32 core. I don't think I'd want it in a case with a vertical motherboard though. Probably what I'll get when Zen 3 Threadripper is finally available in a few months.

icegiantcooling.com

IceGiant Cooling

IceGiantCooling

1:24 PM · Apr 20, 2021Twitter Web App

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Looks decent. In my experience you usually get better results out of Noctua's air coolers than they spec for. I'm running a pair of NH-D9 DX-3647 in my dual Xeon 8276L workstation, and they're 165W TDP each. Idle 45C, 95th percentile under load is about 76C, absolute peak 82-ish.

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That's with a pretty relaxed fan profile, too. I don't push up to 100% duty cycle until core temperatures exceed 70C, and I've set the hysteresis pretty long to avoid audible PID oscillation.

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