Fractal Design Define R5 with Cooler Master Nepton 140XL:
Front intake: Fractal Design GP-14 X2 (low RPM)
Rear exhaust: Fractal Design GP-14 (low RPM)
Heatsink: front mount push only with Noctua NF-F12 PWM just under the optical bay (middle hdd bay is removed)
This setup is very silent, almost...