[eaasen]

FWIW, we had to have the idle speed of our fans lowered because the usual idle of around 5k RPM was WAY too much cooling. We generally run our fans at around 2.5kRPM (barely above idle). This is due to not only the larger fans, but also the fact that we optimized and prioritized as little restriction on airflow as possible. If you’ve taken apart a current gen 1U/2U server and then compare that to how little our airflow is restricted and how little our fans have to work, the 12X reduction becomes a bit clearer.

[znpy]

> the usual idle of around 5k RPM was WAY too much cooling.

What does this mean? Can one actually get too much cooling? Do you get like condensation and stuff, that kind of "too much cooling" ?

I'm not being snarky, i actually don't know.

[kardos]

It must mean cooling significantly below the target temperature, and thus wasting power to do it

[znpy]

I see, thank you!