4 ms·
Presumably it would make it hotter, as the CPUs wouldn't have to throttle themselves so much, generating more heat.
by smrq 2y ago
Presumably it would make it hotter, as the CPUs wouldn't have to throttle themselves so much, generating more heat.
- comboy 2y agoI would guess the opposite. Less energy pumped into the fans running at 100%.
- stavros 2y agoThe fan is 1W, the CPU hundreds, though. The fan's power usage is negligible.
- theideaofcoffee 2y agoSmall desktop-class fans, sure. But when you're talking 1U or 2U rack-mounted systems with high speed (>10k RPM) counter-rotating fans, they often suck tens of watts each. And usually in those systems there are at least four, sometimes six, often eight. So it's reasonable to think that bringing down overall compute load over hundreds of systems would cut out a significant, measureable chunk of energy usage in just moving air.
- kadoban 2y agoDo server fans even throttle? All of the few I've seen are just on 100% always.
- kadoban 2y agoAs I understand it, hot CPUs are less efficient CPUs. Could have an effect on temperature. Unless the work to be done is unlimited, all else being equal, hopefully a well functioning system puts out less heat to do X amount of work than a poorly running system.