Lenovo AIO desktop noisy fan

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.

Need to do some mowing

Weather OK today so mustered the effort to get the backyard mowing done so it's easier to see (search & collect) the doggie poo bombs!

Speckles back in the chook shed

Speckles back home in the coop for tonight, and already got her head tucked-in - sweet dreams.

Note to self: adjust the camera focus.

After storms no DAB radio.

ET asking me why none of her DAB radios are working?

(S.E. suburbs of Melbourne)

Speckles stuck in the run today

Speckles stuck in the run today.

I took out a platter of treats to keep her occupied.

Outside with the doggies

Outside with the doggies doing a few jobs and keeping Speckles company - and feeding her treats.

Speckles back in the laundry - so cold.