wendell from level1techs built a dual Milan system in a torrent recently specifically because the person he was building it for wanted it quiet. You should be fine with your case and Epyc.The one thing thing I haven't really looked at is the last-gen Epyc platforms - mostly because I have longevity concerns about cooling. The case I am currently running is Fractal Torrent and I prefer it run _very_ quiet as its sitting on the floor just next to me. Server components, OTOH, really like airflow.