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Test: Be quiet Pure Power 11 FM

Test: Be quiet Pure Power 11 FM

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Be quiet Pure Power 11 FM

For

Fully modular, solid construction, 80+ Gold, silent fan, good integrated protection.

Against

We lack a hybrid solution for the fan so that it is switched off completely at low load, we would have liked to have seen even longer P8 / P4 cables.

Recommended to

Be quiet Pure power 11 FM is a really good choice for the price-conscious user who will not load his rig 24/7.

Pure Power 11 FM is a silent power supply with flexible cable management from Be quiet. We like most things, especially the price.

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Be quiet’s power supplies are divided into four series. From the entry-level models, Pure Power and System Power called via the premium series Straight Power to the high-end series Dark Power. In addition, there are also double “compact series” for SFX and TFX constructions, respectively. This time we take a closer look at the latest update of the Pure Power 11 FM input model, which combines high stability and efficiency with a humane price picture.

Fully modular for cheap money

One of the big news for this model is that PP, the abbreviation for Pure Power, goes from being a semi-modular unit to a completely modular ditto, which the name also suggests. FM – Fully Modular. The model is available in three capacities: 550, 650 and 750 watts where we have tested the latter unit.

Pure Power 11 FM measures 160 x 150 x 86 millimeters and weighs 1.7 kilos, which is a good indication of a solid construction. The unit is cooled by a 120 millimeter Silentwing fan which works with a maximum rotation of 1,800 rpm and which thanks to the efficient blades provides a high and even air flow which at lower loads is almost completely silent. Even at full load, the power tag maintains a very low noise level that never exceeds 25 decibels. It is barely audible in a normally insulated chassis.

Pure Power 11 FM
Pure Power 11 FM from Be quiet is a solid, fully modular power supply with quiet operation.

Unfortunately, Be quiet has chosen not to use a hybrid solution, where the fan can be switched off completely when it is not needed. This is not a major problem, but for you who want to optimize energy savings at all levels, it obviously has a certain impact. When we talk about energy efficiency, the unit is 80+ Gold-certified, which means an energy efficiency of up to 93.9 percent.

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If we go over to the unit’s connections, we get a wide set of cables. In addition to a P8, a dual P4, four 6 + 2 PCIe connections, dual PATA, nine SATA, an FDD and of course a 20 + 4 pin ATX connector are included.

Should we be a little critical, we would have liked, and this applies to several manufacturers, that above all the CPU P8 / P4 connectors would be longer, preferably up to 80 centimeters, to facilitate cabling in larger chassis.

Pure power 11 FM cables
A total of eight cables are included. We would have liked to have seen that the P8 / P4 cables were longer.

Pure Power 11 offers complete protection

If we take a closer look at the outputs, Pure Power 11 FM uses double 12 volt rails which offer 750 watts of power and where we over 3.3 and 5 volt connections offer a maximum power of 120 volts with a maximum so-called hold-up time at 100 percent load of 19 milliseconds.

As always with Be Quiet’s power supply, this model also has a very good integrated protection against impure current in various forms.

In this case you get: OCP / UVP (over / under current protection), OVP (Over Voltage Protection), SCP (Short Circuit Protection), OTP (Over Temperature Protection) and OPP (Over Power Protection). It provides good basic protection for our computer components.

READ MORE: TESTED POWER SUPPLIES

As the model uses both LLC and so-called Synchronous Rectifier, or SR, we get a stable operation with optimal voltage regulation for the class. If we take this to our test rigs, the unit without worries drives our overclocked Intel Core i9-11900K processor with an RTX3090FE card together with both dual M.2 units and four mechanical disks.

Considering that the price for this power supply is just under SEK 1,300, it is a perfect solution for above all “casual gamers” who do not want to spend too much on each component.

Be quiet Pure Power 11 FM

For

Fully modular, solid construction, 80+ Gold, silent fan, good integrated protection.

Against

We lack a hybrid solution for the fan so that it is switched off completely at low load, we would have liked to have seen even longer P8 / P4 cables.

Recommended to

Be quiet Pure power 11 FM is a really good choice for the price-conscious user who will not load his rig 24/7.

SPECIFICATIONS Be quiet Pure power 11 FM:

  • Manufacturer: Be quiet, www.bquietwindows.com
  • Approximate price: SEK 1,299 incl. VAT, 1,039 excl. VAT
  • Measure: 160 x 150 x 86 mm
  • Weight: 1.7 kg
  • Cooling: 120 mm Silent Wing
  • Total number of cables: 8pcs
  • Efficiency: 80 + Gold
  • Protection: OCP, OVP, UVP, SCP, OTP and OPP
  • Highest noise level: 24.8 dB
  • Guarantee: 5 years

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