For some months now our Lenovo Ideacentre AIO 510 (23) i7/16GB desktop has been annoying me with a noisy fan.
Even when idle the fan revs will increase and decrease in a cyclic manner.
Removed the back and gave it a clean out; not much in the way of dust clogging things so this will not fix the noisy fan problem. I suspect it’s software…not hardware.
