Topics created by escknx

They can't be disabled in firmware because they are connected in parallel with the heatsink fan. You could run separate wires to the heatsink fan instead of using the 2 pins in the 6-pin connector. Or you could cut one of the traces that connects the LEDs, but of course that will void the warranty.

@kolja Yes passed finger test just fine. Can't feel any heat on sink w Noctua 40x10 from 12v on Duex 5.

Some time ago I was experimenting with fans and forgot to pin 12v on Duex, so powered 12v Noctua from 24v, it worked just fine for about minute or 2 till I realized why it spins much faster. Not sure how long it has to work on 24v till damage occurs, but I think that 15-16v on Noctua will increase air flow without making in louder.

you dont need them for the duet.
see
https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors