⬢Connect the cables from the extruder to the RAMBo board:
⬢P.I.N.D.A. probe (v-cable, 4 wires)
⬢Left hotend fan (v-cable, 3 wires)
⬢Extruder motor (yellow label with "E")
⬢Extruder thermistor (yellow/green heat shrink, orientation does not matter)
⬢Front print fan (red heat shrink, ensure that the red wire is closer to the extruder thermistor connector)
⬢Filament sensor cable (use the correct row of pins in the connector and ensure the red and blue wires are facing the outside of the board) In the third picture, the RAMBo board is facing with the USB port towards you.