Hetzner is known to do their own thing instead of blindly following datacenter conventions. E.g. having the physical architecture (how their buildings are desig

Hetzner is known to do their own thing instead of blindly following datacenter conventions. E.g. having the physical architecture (how their buildings are designed) so optimized for convective flow that they get sufficient air flow without extra fans most hours of the year and only need active "heat pump" style cooling in rare exceptions. They do have board-level fans, but it it would be almost out-of-character if those did not throttle to zero whenever possible. Big german language report: https://www.golem.de/news/besuch-im-rechenzentrum-so-betreibt-hetzner-tausende-server-effizient-2211-169943.html https://www.golem.de/news/besuch-im-rechenzentrum-so-betreib...