Sorry if it was already asked, but I honestly couldn't find it.
I'll be using server PSU, with 470W on 12V line and over 30W on 5V one. I decided to remove D1 from my RAMPS and power Arduino from 5V lines. And now I'm in doubt. Can Marlin use PS_ON pin on board? I have an LCD with SD card reader for it. Can I power Arduino from 5V_STB and connect PS_ON to, well, PS_ON? Or it wouldn't work and I should rather use standard 5V line and connect PS_ON of my PSU to normal switch?
I'll probably mount power plugs on both 5V and 5V_STB of my PSU, and put female goldpin on PS_ON, but that will only postpone decision a bit. This is something I'll have to decide before designing chassis, and we actually are in the process of designing it now.
I'll be using server PSU, with 470W on 12V line and over 30W on 5V one. I decided to remove D1 from my RAMPS and power Arduino from 5V lines. And now I'm in doubt. Can Marlin use PS_ON pin on board? I have an LCD with SD card reader for it. Can I power Arduino from 5V_STB and connect PS_ON to, well, PS_ON? Or it wouldn't work and I should rather use standard 5V line and connect PS_ON of my PSU to normal switch?
I'll probably mount power plugs on both 5V and 5V_STB of my PSU, and put female goldpin on PS_ON, but that will only postpone decision a bit. This is something I'll have to decide before designing chassis, and we actually are in the process of designing it now.