be quiet! Dark Power 14 1200W ATX v3.1 PSU Review

Average Noise

The PSU’s average noise output is low.

Fan Noise & Speed Maps @ 28-32 °C – 115V

The fan’s passive operation lasts for a long time. Typically, a CWT platform is affected by load on the minor rails, but the fan’s noise never gets high, even with combined loads above 90W on the minor rails. Up to around 950W at 12V, the PSU is dead silent, but at higher than that loads, its fan quickly picks up the pace and noise exceeds 30 dBA for prolonged operation periods, in an effort to remove the heat out of the PSU’s internals.

Fan Noise & Speed Maps @ 28-32 °C – 230V

At 230V, the 30-35 dBA range is restricted, compared to 115V input.

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9 thoughts on “be quiet! Dark Power 14 1200W ATX v3.1 PSU Review

  1. I have the 1200w Dark power 14, Amazing psu and completely silent too all round.
    The addition of a semi-passive fan mode switch was much requested for Be Quiet to implement to there psus and the Dark power 14 delivers that, now the fan doesn’t have to constantly run for complete silence at most normal loads.
    My only gripe is the cables could be more flexible but that is a non issue to the performance being so excellent. I just have to wait till I can buy some replacement cables for the psu.

  2. so this PSU was use main caps TK or Rubycon, on the sheet was listed Rubycon but in the photos says it was TK or BeQuiet gonna change their main caps config on a retail product so you just listed in a datasheet usinf Rubycon main caps ?

  3. Thanks for the review! We’ll see in the 850W,1000W reviews the Pure Power 13 M numbers together but if the lower wattage models are in line with this one then in some areas the Pure Power 13 M is actually better so hard to justify spending this much more for this one. Which one would you pick? Be Quiet is on the right path thats for sure and should be on buyers list performance wise but reliability matters more since we don’t want to burn down the house haha, but you can read horror stories about every brand so who knows which to pick. Hopefully my 2019 Seasonic Focus Gold will hold on for a while.

    Even the cables don’t seem to be much more premium, the cables with the Pure Power 13 M are rather stiff some say, would be nice if other than the overall cable quality you would mention flexibility aspect of them, often overlooked quality.

  4. Oh, good timing for this review ;-). Managed to order this psu, for 250€ @Alternate.
    It will replace my older BQ DP 12 850W, for more future proof.

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