be quiet! Dark Power 13 850W PSU Review – Impressive Efficiency, Dead Silent & Decent Performance

The be quiet! Dark Power 13 850W uses a high-end FSP platform which offers top efficiency, dead silent operation and ATX v3.0 and PCIe 5.0 compatibility. If only performance was higher. 

be quiet! strengthens its cooperation with FSP with the Dark Power 13 series. Because of the Titanium efficiency, the platform uses a bridgeless APFC design for lower power losses. Moreover, the quiet operation was among the top priorities, with the unit achieving below 15 dBA average noise, scoring an impressive Cybenetics ETA-A++ rating. This brand is known for its silent operating products, and the Dark Power 13 line is a fine example. You cannot go wrong with a be quiet! PSU, if you mostly care about noise output.

The Dark Power 13 uses a fluid dynamic bearing fan driven by a highly relaxed fan speed profile. I agree with the non-inclusion of a semi-passive mode. There is no need for a fan-stop option from the moment the fan’s noise is negligible at low speeds, and the bonus is that there is no heat build-up at the PSU’s internals.

 

Cybenetics Report

 

Technical Specifications:
  • Manufacturer (OEM): FSP
  • Max Power: 850W
  • Cybenetics Efficiency: [115V] Cybenetics Titanium (91-93%)
  • 80 Plus Efficiency: Titanium
  • Noise: Cybenetics A++ (<15 dB[A])
  • Compliance: ATX v3.0, EPS 2.92
  • Alternative Low Power Mode support: Yes
  • Power 12V: 840W
  • Number of 12V rails: 4
  • Power 5V + 3.3v: 120W
  • Power 5VSB: 15W
  • Cooling: 135mm Fluid Dynamic Bearing Fan (BQ SIW3-13525-HF)
  • Semi-Passive Operation: No
  • Modular Design: Yes (Fully)
  • High Power Connectors: 2x EPS (2x cables), 4x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (600W)
  • Peripheral Connectors: 12x SATA (4x cables), 2x 4-pin Molex (single cable)
  • ATX/EPS Cable Length: 600/700mm
  • Distance between SATA / 4-pin Molex connectors: 150mm
  • In-cable capacitors: No
  • Dimensions (W x H x D): 150 mm x 85 mm x 170 mm
  • Weight: 2.05 kg (4.52 lb)
  • Warranty: ten years
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2 thoughts on “be quiet! Dark Power 13 850W PSU Review – Impressive Efficiency, Dead Silent & Decent Performance

  1. Hi!

    I’m really interested in the DP13, but I’ve read a lot of reddit threads and horror stories about it either coming with an unbearable rattling noise off the bat or with the DP13 straight up dying right after installation or some time after, a week to a year.

    Have you by any chance heard anything of the current stability and safety of DP13? The reddit threads have certainly died down in the past half a year, suggesting that perhaps bequiet fixed their batches, but I’m still very nervous about it, as it’s quite a pricey faustian bargain to take.

    1. My sample worked as I described in the review. Unfortunately, I cannot do torture testing in all PSUs I get, but what I know is that be quiet! has a very strict policy on quality, and its PSU team takes seriously everything that users report, so I doubt any problems still exist.

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