A good D5 will emit hardly any noise when running at 30-50%, and you can have 140mm fans on 140mm wide rads running very slowly (400-600rpm) and keep everything

A good D5 will emit hardly any noise when running at 30-50%, and you can have 140mm fans on 140mm wide rads running very slowly (400-600rpm) and keep everything very cool. I've done both air only, with high quality fans, and now have. custom loop - the custom loop is far quieter, even at load. And it was fun to do.