FAQ: On which side of the heat-sink should the fan be installed?
Noctua spent four and a half years designing its quietest, strongest fan yet | PC Gamer
Full Noctua build with Corsair 4000D Airflow case, Noctua NH-U14S Tower cooler with NF-A15 140mm, and 6x Noctua NF-S12A PWM Case fans (details in comments) : r/pcmasterrace