be quiet! PURE POWER 11 FM 1000W Power Supply Overview

Cross-loading and noise levels

be quiet! PURE POWER 11 Power Supply Overview


If you are someone that plans to make a lot of use of 5V and 3.3V power, you will be glad to know that be quiet's entire PURE POWER 11 FM range supports up to 120W of 5V and 3.3V power, with the diagram below showcasing the PSU's cross-loading support. 

5V and 3.3V power is converted from 12V using DC-to-DC power converters, which means that 5V and 3.3V power comes from the PURE POWER 11 FM's maximum 12V power budget. If no 5V or 3.3V power is used, 1000W of 12V power is available to users with be quiet's 1000W model, with up to 120W of capacity being convertible to 5V or 3.3V power. 

be quiet! PURE POWER 11 Power Supply Overview  

Noise Levels

With their 1000W PURE POWER 11 FM power supplies, be quiet! intends to live up to their name. After all, what's the point in a be quiet! power supply that is loud? 

At up to 70% loading, the fan on the be quiet 1000W is silent, delivering noise levels of below 11.0 dB(A), with 90% loads ramping noise levels up to 23.6 dB(A). Only at 100% loads will the be quiet 1000W PURE POWER 11 FM deliver noise levels of over 30 dB(A), making this PSU a quiet unit. Not many users will be running this PSU maxed out for long, as PC builders should always build systems with PSUs that are a little larger than what they require. After all, you don't want your PC to ever be a few USB drives away from overloading your PSU. 

be quiet! PURE POWER 11 Power Supply Overview  

For cables, be quiet's PURE POWER FM 1000W PSU delivers what is expected from any premium power supply. It features all black cables, with the system's 24-pin connector being sleeved. All other cables are flat black cables, making them easy to manage and hide within most PC cases. The worst thing that we can say about these cables is that they do not have any wow factor, but the same can be said for most PSU cables. 

be quiet! PURE POWER 11 Power Supply Overview  

be quiet! PURE POWER 11 FM 1000W Power Supply Overview  

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