I changed Cooler Master Hyper 212 Evo's fan with a 14 cm Akasa Viper R High Performance S-Flow fan Amazing difference :) | Overclock.net
![Akasa 120mm Viper Fan, PWM Case Fan, HDB Long Lifespan Bearing, Anti-Vibration Rubber Mounts Included, High Airflow S-FLOW Fan for Heatsink, CPU cooling and Ventilation, AK-FN059 : Amazon.co.uk: Computers & Accessories Akasa 120mm Viper Fan, PWM Case Fan, HDB Long Lifespan Bearing, Anti-Vibration Rubber Mounts Included, High Airflow S-FLOW Fan for Heatsink, CPU cooling and Ventilation, AK-FN059 : Amazon.co.uk: Computers & Accessories](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/S/aplus-media/sc/bef661a5-0b8b-4b65-a67d-d4c5a5b51368.__CR0,0,150,300_PT0_SX150_V1___.jpg)
Akasa 120mm Viper Fan, PWM Case Fan, HDB Long Lifespan Bearing, Anti-Vibration Rubber Mounts Included, High Airflow S-FLOW Fan for Heatsink, CPU cooling and Ventilation, AK-FN059 : Amazon.co.uk: Computers & Accessories
![Akasa 140mm Viper R Fan, PWM Case Fan, HDB Long Lifespan Bearing, Anti-Vibration Rubber Mounts Included, High Airflow S-Flow Fan for Heatsink, CPU Cooling and Ventilation, AK-FN073 Akasa 140mm Viper R Fan, PWM Case Fan, HDB Long Lifespan Bearing, Anti-Vibration Rubber Mounts Included, High Airflow S-Flow Fan for Heatsink, CPU Cooling and Ventilation, AK-FN073](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71MuEoUHu7L.jpg)