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be quiet! Pure Power 12M 1000W, review and analysis in Spanish

We start the day with the review of the be quiet! Pure Power 12M 1000W, a new power supply for the Pure Power family that promises performance, low noise and a relatively contained price. Compatible with new standards PCIe Gen 5 and ATX 12V 3.0obviously has the 600W 12VHPWR connector to bring to life NVIDIA’s next-generation graphics, as well as the efficiency certificate 80 Plus Gold.

be quiet!  Pure Power 12M 1000W

Before beginning your analysis, thank you be quiet! for giving us the power supply Pure Power 12M 1000W for your analysis.


Technical Specifications of the be quiet! Pure Power 12M 1000W

be quiet! Pure Power 12M 1000W
Power 1000W
Efficiency 80 Plus Gold
Design Dual +12V rail
46+42 amps
Active PFC
Refrigeration Fan be quiet! 120mm
2000RPM @ 31.7dB
Cabling Fully Modular Wiring:
1 x ATX (20+4 pin)
2 x ATX/EPS (8 / 4+4 pin)
1 x 12VHPWR 600W
4 x PCIe (6+2 pin)
2 x Molex
protections OCP, OVP, UVP, OPP, SCP, OTP, SIP
Dimensions 150 x 86 x 160mm (width, height, depth)

Packaging and Accessories

front packaging

The first step in the review of the be quiet! Pure Power 12M 1000W We give it to its packaging, an elegant black box that shows us the desEsports Extrasof the source on the front and its power distribution on the back.

rear packing

inner packing

Inside, we find the source protected by a bag of air bubbles and the wiring around it.

be quiet!  Pure Power 12M 1000W - Accessories

The accessory kit consists of the user manual, a pack of plastic ties to organize the wiring, the screws for its installation, the power cable and a pack of modular cables that we see below.


Fully modular cabling

be quiet!  Pure Power 12M 1000W - Modular wiring

The be quiet! Pure Power 12M 1000W offers fully modular wire-based cabling, except for ATX cable and 12VHPWR which come with a shield over the wires. We thus have the following cables and connectors:

  • 1 ATX cable (24+4 pin) [54 cm]
  • 1 EPS 12V (8-pin) cable [59 cm]
  • 1 EPS 12V cable (4+4 pins) [59 cm]
  • 1 PCIe Gen 5 / 12VHPWR (12+4-pin) cable [60 cm]
  • 2 cables with 2 PCIe connectors (6+2 pins) [49 + 14 cm]
  • 1 cable with 4 SATA connectors [50 + 15 + 15 + 15 cm]
  • 1 cable with 2 SATA + 2 MOLEX [50 + 15 + 15 + 15 cm]
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We must emphasize that the be quiet! Pure Power 12M 1000W count with one 12VHPWR wire either PCIe Gen 5.0 600W, which allows the installation without adapters of a next-generation NVIDIA graphics card.

DesEsports Extrasof the be quiet! Pure Power 12M 1000W

be quiet!  Pure Power 12M 1000W - 3/4 View

We continue the review of the be quiet! Pure Power 12M 1000W seeing how this offers a fairly conventional design. With a ATX-formatspecify some dimensions of 150 x 86 x 160mm (width, height, depth).


be quiet!  Pure Power 12M 1000W - Fan from outside

Inside, we find a fan be quiet! 120mm which promises to spin up to 2,000 RPM with a maximum loudness of 31.7 dB, although in practice we will not reach those figures. Of course, it does not offer a semi-passive mode as is so fashionable, nor is it necessary to rotate so slowly at rest that it is not audible.

be quiet!  Pure Power 12M 1000W - Logo

While on one side we find a logo of the brand, on the opposite we find a sticker that informs us of the rail distribution of the be quiet! Pure Power 12M 1000W. this account with 2 12V rails of 46A and 42Awhich allow a maximum combined load of 83.4A and a consumption of up to 1000W. It is true that we must subtract the consumption of the rest of the rails, although it specifies that it supports peaks of up to 1050W without problems.

be quiet!  Pure Power 12M 1000W - Distribution of rails

Back view

Connectors for modular wiring

be quiet!  Pure Power 12M 1000W - Connectors for modular wiring

The be quiet! Pure Power 12M 1000W It also has numerous connectors on the internal side for modular wiring, all well labeled and well organized, highlighting the latest generation 12VHPWR.


C21 connector

While, on the opposite side, we see the standard C21 power connector for power supplies, as well as the complete power supply off switch.

80 Plus Gold Certification

This model has the 80 Plus Gold energy efficiency certificatewhich guarantees good charging efficiency, although not so much at rest.

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Efficiency at 2% load 75.9%
Efficiency at 10% load 88.4%
Efficiency at 20% load 92.3%
Efficiency at 50% load 93.1%
Efficiency at 100% load 90.8%

Interior of the be quiet! Pure Power 12M 1000W

be quiet!  Pure Power 12M 1000W - Fan

We passed in the review of the be quiet! Pure Power 12M 1000W to analyze its interior and components. In the first place we are faced with a fan be quiet! 120mm QF2 up to 2000RPM, which runs at 12V with load control so it never hits its 31.7dB max.

be quiet!  Pure Power 12M 1000W - Indoor

The manufacturer chosen by the brand to bring this power supply to life is none other than CWT, a classic in the brand and in most brands that does not have its own manufacturing. We find a very well organized interior in which there are hardly any cables and where there is no lack of heatsinks, since they are quite numerous.

With a 12V dual rail design, it offers an LLC + SR topology, ie half bridge and synchronous rectifier, as well as DC-DC conversion for the 3.3V/5V rails. Also has japanese main capacitors signed by Elite with 470 µF, 400V and 105 ºC.


japanese capacitors

test equipment

test equipment

Our testing team is made up of the following components:

  • Bench table Banchetto 101
  • MSI MEG Z690 Unify Motherboard
  • Intel Core i9-12900K processor
  • MSI MEG CoreLiquid S360 Liquid Cooling
  • G.Skill Trident Z5 RGB Memory @ 5600 MHz
  • Nvidia GeForce RTX 3080 Ti graphics card
  • Windows 11 Pro Operating System

Evidence of the be quiet! Pure Power 12M 1000W


As we have anticipated, the be quiet! Pure Power 12M 1000W it never turns off its fan, but it is virtually silent when the computer is idle, so it is not a problem at all.

be quiet!  Pure Power 12M 1000W - Voltages

We have analyzed the stability of the voltages with Aida64 Engineer for the +12V, +5V and +3.3V rails. To do this, we have subjected the team to the stress test of this software with two load levels, without or with a GPU. As we can see, the voltage oscillation is within what the ATX standard sets, with averages very close to the theoretical value that allow a very tight consumption.

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be quiet!  Pure Power 12M 1000W - Consumption


be quiet!  Pure Power 12M 1000W 2

We conclude the review of the be quiet! Pure Power 12M 1000W highlighting that this is a very balanced power supply for those users who seek reliability, power, efficiency and highly value low noise. Let’s go in parts.

As for reliability, the platform designed by CWT for this model is really good, without going to excessively expensive components that increase its price. It offers power with versions of up to 1000W like the one we have analyzed, although we also have lower wattage versions, but in the higher ones, it has the 12VHPWR connector that allows modern NVIDIA graphics to be connected in the best possible way. It also offers good energy efficiency as guaranteed by its 80 Plus Gold certified, because although it is not the most efficient, it is not a bad thing. Finally, note that its fan always rotates at low revolutions and is therefore practically inaudible.


We can find the sale be quiet! Pure Power 12M 1000W from 90 euros for the 550W modelreaching the 165 euros for the 1000W model analyzed. They are really good prices for the latest generation models that have the 12VHPWR connector, being ideal for those looking for a very good product, but without excesses.

Main advantages
+ Very good price/performance ratio
+ Compatible with PCIe 5.0 and ATX 12V 3.0
+ 600W native 12VHPWR connector
+ 80 Plus Gold Certified
+ Fully modular cabling
+ Very quiet, barely audible
+ 10 year warranty
Negative Aspects
nothing to object
Other Aspects
* Available in 550W, 650W, 750W and 1000W

From The Computer Tinkerer we grant him the Platinum Award to power supply be quiet! Pure Power 12M 1000W.

Platinum Award

Valuation of the El Chapuzas Informático team
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