Replaced a water cooler with a traditional heatsink as a precautionary measure. I've been using this AMD Threadripper 3990X 64-core CPU for two years, and I really liked it! I'll probably use it for at least two more years.
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what kind of air cooler can handle this for instance? Will a regular consumer-grade chunk like NH-D15 do?
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I bought this:
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i wonder why they don't have 15 models for threadripper socket. Is it that the surface is so large that it cools better?
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They have relative performance numbers at noctua.at/en/products/cp based on their Noctua Standardised Performance Rating (NSPR).
NH-D15 is one of the oldest designs in their current product line and desperately needs an update. It's still their highest performance cooler though.
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NH-U12A has NSPR 169 which is really close to NH-D15 183 because it has their newer heatsink and fan designs.
They only made a single Threadripper cooler because it's a tiny market. You can see they don't list it as having maximum turbo perf for 64 core:
ncc.noctua.at/cpus/model/AMD
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Their timeline is Q4 2022 for the next generation 140mm fans and Q1 2023 for the next generation NH-D15 using those.
Zen 3 Threadripper got delayed for years and hasn't launched as a retail product. When AMD and Noctua finally launch those, there could be a Threadripper NH-D15.
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For the time being, these are the only air coolers able to get the best performance from 64 core Threadripper or overclocked 32 core Threadripper:
icegiantcooling.com
Beats best closed loop water coolers for Threadripper but it's ridiculously large / heavy and isn't cheap.
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is this supposed to be revolutionary?? Isn't this how any modern heatpipes work including all of noctua coolers?
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I think the difference is primarily that it has a much larger chamber for the circulation and it's designed to depend on gravity returning the liquid. Traditional heatpipes are assisted by gravity but they still work at slightly reduced efficiency when they aren't aligned right.