So I plugged 80mm fan for RAMP cooling board to D2 because D9 is

3D Printing
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1

So I plugged 80mm fan for RAMP cooling board to D2 because D9 is already used by e3d cooling fan. Now the 80mm fan would not turn when I power up the board… I thought about defining motherboard to 34 from 33 but before I do that any other suggestion? Thx

2

All the fans which should be on all the time I just take from the 12v powerrail straight out of my PSU (like board cooling and extruder cooling). D9 I use for PWM controlled cooling my prints

3

Ditto. I have 2 40mm fans connected directly to the 12v rail. Power is on, they are cooling.

4

I think I saw a schematic somewhere showing two fans connected at the board incoming power. Thx