trustmebro.reviews

420mm AIO

Physical Product · CPU coolers, fans & thermal paste · 6 mentions · 1 subreddit · discussed in r/buildapc

Reddit take

Not enough linked mention summaries yet; the source excerpts below are the evidence.

Pros

  • Now if u have a 13900k/14900k then yeah a 420 might make things easier as that thing is insane with the amount of heat it can put out
  • 420mm AIO is absolutely overkill for a 9850x3d under gaming conditions, but it’s probably what you want if you care that much about noise. All the cooling overhead means you can set a pretty quiet fan curve
  • get a decent 360mm or i would even get a 420mm if you can fit it.

Cons

  • Placement options for 420s are certainly more limited, even though technically both cases accept them.
  • 420 is heavier and unwieldy, id keep the 360. Very few cases can take a 420, even my meshify case advertises 420 but it's on a technicality, you can only fit a slim 420 radiator in here with slim fans, so it doesn't even count.
  • If 360mm can easily handle it, then, 420mm won’t make a difference. Now, if talking Intels hot beast, like 14900K, 420mm should be better.

Sentiment

3 positive (50%) · 1 mixed (17%) · 2 negative (33%)

Trust + time weighted score: +18% · raw score 17%

What redditors said (6 of 6)

Now if u have a 13900k/14900k then yeah a 420 might make things easier as that thing is insane with the amount of heat it can put out
positive · u/N****7 · r/buildapc · comment · Mar 22, 2026 · open on Reddit ↗
420mm AIO is absolutely overkill for a 9850x3d under gaming conditions, but it’s probably what you want if you care that much about noise. All the cooling overhead means you can set a pretty quiet fan curve
positive · u/V****y · r/buildapc · comment · Mar 9, 2026 · open on Reddit ↗
Placement options for 420s are certainly more limited, even though technically both cases accept them.
negative · u/s****7 · r/buildapc · comment · Mar 22, 2026 · open on Reddit ↗
420 is heavier and unwieldy, id keep the 360. Very few cases can take a 420, even my meshify case advertises 420 but it's on a technicality, you can only fit a slim 420 radiator in here with slim fans, so it doesn't even count.
negative · u/N****3 · r/buildapc · comment · Mar 22, 2026 · open on Reddit ↗
If 360mm can easily handle it, then, 420mm won’t make a difference. Now, if talking Intels hot beast, like 14900K, 420mm should be better.
mixed · u/M****1 · r/buildapc · comment · Mar 22, 2026 · open on Reddit ↗
get a decent 360mm or i would even get a 420mm if you can fit it.
positive · u/g****s · r/buildapc · comment · Mar 4, 2026 · open on Reddit ↗

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