Hello, I'll be short. It's been something that bugged me for a while now. I use to change the speed of my cpu's fan using speedfan to make it silent (when I sleep) anyway, my point is, the next day when like I wanna get it back to normal is it damaging if like from 30(%) I set it to 100(%) all of a sudden? Can that damage anything? PSU or anything? Or I should go like 40(%) wait a bit, 50(%) wait a bit.
The range of the RPM is like 800 (30%/50%) to 1600(100%) now that's really cold.
Is it damaging in speed fan to set the cpu's fan speed from 30(%) to 100(%) all of a sudden? Or should I increase slowly?
Because it is a small, light load, the inertia is small and hence doesn't cause severe mechanical stresses.
Also, due to the motor already being spinning there is not significant "inrush current", and even going from 0 -100% the wiring is quite fine gauge and the voltage is quite low so the max inrush is very small too.
These fans are designed to be operated this way so I do not think there is a problem at all. They will be more damaged by build up of dust and stuff. So keep it clean (maybe dust it down once every 6 months).
Also, you are more likely to hurt something by using a vacuum. It is possible to get the fan turning very quickly, and a motor that is spun with external force behaves like a dynamo (generator). This could in theory lead to burning out the motor/wiring...