Sigma Pro 120 mm PWM

To ensure the new Fera is as quiet as it is efficient we chose to pair it with the Sigma Pro 120 PWM-controlled fan. Optimized blades spinning at 500 ~ 1600 RPM significantly reduce noise while providing sufficient airflow for cooler to work even with high-TDP processors.

SilentiumPC Fera 3 HE1224 v2 is high performance cooling solution for 180W TDP CPUs. Its using four, high quality, 6 mm heatpipes and Sigma Pro 120 PWM fan with optimized blade design to significantly reduce noise.


Fera 3 HE1224 v2 main advantage is it's super-slim profile. The height of just 155 mm means the cooler fits about everywhere, even in narrow cases (min. 182 mm width).

  • safe mounting solution
  • Sigma Pro 120mm PWM fan
  • doesn’t interfere with high RAM modules
  • fits in narrow cases (<182 mm width)
  • aesthetic caps for heatpipes
  • Pactum PT-2 (5.0W/m.K) thermal compound included

Radiator construction

Fera's radiator is made with HE (High Efficiency) technology in mind where every single of four heatpipes is directly touching the CPU which improves heat conveyance and therefore improves temperatures. Asymmetric design ensures wide compatibility, even with very high RAM modules.

Thermal compound

Alongside SilentiumPC Fera 3 HE1225 cooler there's Pactum PT-2 (5.0W/m.K) thermal compound included which ensures high performance of the cooler.


Mounting mechanism is a proven solution used in other SilentiumPC products. Mounting of Fera 3 HE1225 is very intuitive and with help of detailed manual included in the box or video tutorials available on Youtube even less advanced users will be able to go through mounting without any hassle.

Technical specification:

  • EAN:5904730204385
  • Product type:CPU Air Cooling
  • SIZE [mm]:155×123×78
  • BOX SIZE [mm]:182×147×110
  • NET WEIGHT [g]:610
  • GROSS WEIGHT [g]:900
  • TDP [W]:180
  • Heatpipes [pcs]:4
  • Fans included [pcs]:1
  • FAN SIZE [mm]:120
  • FAN SPEED [rpm]:500 ÷ 1600 ± 10%
  • FAN MTBF:50 000
  • Warranty [m]:24
  • MOUNTING TYPE:Through Mobo
  • Liquid metal compatibility:NO
    • LGA 1200 / 1151 / 1150 / 1155 / 1156:YES
    • LGA 2066 / 2011-3 / 2011:YES
    • LGA 1366:YES
    • LGA 775:YES
    • AM4:YES
    • AM3(+) / AM2(+) / FM2(+) / FM1:YES
    • TR4:NO

    Set includes

    • Fera 3 HE1224 heat sink
    • 1 × Sigma Pro 120 mm PWM fan
    • pactum pt-2 thermal compound
    • mounting accessories
    • User manual

    Caution! HE technology (direct contact between heatpipes and CPU) requires using dense thermal compound, like the one included in the package. Thermal compounds applied with brush are too thin and affect the cooling performance unfavourably.

    Please DO NOT use ‘liquid metal’ type thermal compounds such as Coollaboratory Liquid Pro/Ultra, Thermal Grizzly Conductonaut Liquid Metal, etc. with this product, as they will corrode the aluminium part of the base. All the complaints regarding corroded radiators will be rejected.

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    - Marcin, SilentiumPC expert