2 ms·

I thought fan noise was also affected by the fan’s mechanics? Like, the bearings and such? Sure, you’re not going to get the same performance out of a silent fa

I thought fan noise was also affected by the fan’s mechanics? Like, the bearings and such? Sure, you’re not going to get the same performance out of a silent fan as a jet engine, but the noise gains (heh) are worth it in most cases.

bayindirh 6y ago
> I thought fan noise was also affected by the fan’s mechanics? In a 1U server, you're running 5-7 tandem mounted, counter rotating Delta fans which can spin up to 18KRPM. They're in a confined space, have big cores to drive them and they need to supply a blanket of airflow to get things cool. Higher efficiency components and a good implicit airflow design affects much more than the fans themselves, since there's not much space to optimize the fan design itself compared to the airflow as a whole inside the server. Moreover, more intelligent system management solutions with more sensors both inside the chips and on the motherboard allows the BMC to see the whole picture and manage these fans in a more informed manner.