Bequiet! PurePower 11 FM 850Watt

Somedays ago, be quiet! announced the addition of two new power supplies for its Pure Power 11FM series, thea 850Watt and 1000watt PSUs. Pure Power 11 FM is aimed at mainstream computer users who appreciate the versatility of modular cables and 80 PLUS® Gold efficiency up to 93.9 percent. The new high-wattage options are specifically aimed at value-oriented PC systems with high-end graphics cards.

High-wattage, fully modular power supply for mainstream users

At be quiet!, Pure Power stands for peerless dependability and a comprehensive feature set at a competitive price point. The new additions tot he Pure Power 11 FM series are no exceptions: by exclusively using fully modular instead of fixed cables, only cables that serve a purpose are installed, resulting in a smoother airflow, lower temperatures, and easier handling inside the case. Pure Power 11 FM comes equipped with black flat cables for all common connections and a black sleeved 20+4-pin ATX power cable. With two independent 12V rails for signal stability, up to six PCI-Express connectors, and power output options now ranging up to an impressive 1000 watts, Pure Power 11 FM is fully suited for silent PC configurations and even gaming systems with a high-end graphics card.

80 PLUS® Gold efficiency and improved topology

Pure Power 11 FM is 80 PLUS® Gold certified with an efficiency rating of up to 93.9 percent, a truly outstanding level for this PSU class. The most compelling benefits of this high efficiency are lower power consumption, lower electricity costs and a cooler, quieter operation. Pure Power 11 FM is equipped with LLC + SR + DC/DC technology for advanced stability and voltage regulation. Cooling is achieved with a silence-optimized 120mm be quiet! fan with airflow-optimized fan blades, enabling the extraordinarily silent operation that be quiet! is famous for. As usual, all modern protection circuits (including UVP, OVP, SCP, OPP, OCP, and OTP) are integrated. be quiet! offers a 5-year manufacturer’s warranty on all Pure Power 11 FM.

With a sales start of Pure Power 11 FM 850W and 1000W on February 8, this is the full recommended retail pricing of the series:

  • Pure Power 11 FM 550W €89.90 $89.90 £79.99
  • Pure Power 11 FM 650W €99.90 $99.90 £89.99
  • Pure Power 11 FM 750W €114.90 $114.90 £105.99
  • Pure Power 11 FM 850W €124.90 $129.90 £109.99
  • Pure Power 11 FM 1000W €154.90 $159.90 £134.99

Pure Power 11 FM 850W offers peerless dependability and best-in-class features such as modular cables. Whether you are assembling a very quiet system, upgrading your PC, or building a gaming system with an overclocked high-end GPU: Pure Power 11 FM 850W offers the best combination of features at a very popular price.

• 80 PLUS® Gold efficiency (up to 93.3%)
• Modular cables for maximum build flexibility
• Two strong 12V rails
• Silence-optimized 120mm be quiet! fan
• Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DC
• Four PCIe connectors for overclocked high-end GPUs
• Full suite of top safety features
• Five-year manufacturer’s warranty


Pure Power 11 FM 850W is certified 80 PLUS Gold with an efficiency rating of up to 93.3% – a truly outstanding level for this class of PSU. The most compelling benefit is lower power consumption, lower costs, and cooler, quieter operation. Whether you are building a very quiet system or gaming system: Pure Power 11 FM 850W is always the correct choice!


Thanks to the modular cables, all cables that serve no purpose in the system are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.


Pure Power 11 FM offers 850W of continuous power with two independent 12V rails for signal stability and four PCI express connectors. It is suited to very quiet systems, upgrading or building multimedia, gaming or systems with an overclocked high-end GPU.


The silence-optimized 120mm be quiet! fan is thermally governed to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality and the almost inaudible operation that be quiet! is famous for.


LLC and Synchronous Rectifier (SR) provide very stable operation and enhanced voltage regulation. The PSU is equipped with DC-to-DC conversion for tight voltage regulation even under heavy cross-loading conditions. This reliable operation with the current generation of processors and graphics cards.


Fashion model

Pure Power 11 FM 850W

continuous power (W)


peak power (W)


Form factor

Version 2.52

Form factor EPS 12V

Version 2.92

modular cable management
Wire-free design (DC side)

100 – 240

Frequency (Hz

50 – 60

Input current (A)

12 / 6



Power factor at 100% load


Compliant to Intel C6/C7
power consumption in stand-by (W)


Average life time (h / 25°C)


Operating temperature up to (°C)


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