I went all noctua, installed all fans with anti vibtation pads and mounts. Still not as silent as I expected, any advices? Further description in comments : r/Noctua
GELID Silent 12 (PWM) Wing 12 UV Blue or Noctua NF F12 PWM chromax.black.swap
Noctua Chromax Black Swap 120mm 1200RPM Computer Case Fan w/Anti-Vibration Pads
Noctua NF F12 Computer Case fan 120mm PWM Damping Quiet Radiator For Desktop case CPU air coolers cooling|Fans & Cooling| - AliExpress