skr 2.0 vb pinouts

[tclay9214]

I recently was gifted a biqu se plus 3d printer with auto level.
The issues the unit had were nonfunctional stpper drivers on all axis exxcept z.
I was told by the person who gave it to me that they flashed it and then the issues with non movement started.
I clecked all the axis by taking the known good stepper driver and swapping it between all axis and extruder and they all funnctioned normally.
I had flashe the screen and motherboard with new firmware from the github repository and still had issues.
I noticed with power off if I rotated the z stepper the extruder turned as well.
I have since obtained a new skr v2.0 motherboard and steppers and no longer have movement issues.
Now however the other issue is some of the wiring did not seem to be correct when I swapped the board.
I'm fgetting a mintemp error upon trying to heat the bed as well as a clicking sound from the nozzle.
I'm not sure what wiring as far as fan0,fan1 should go.There's also a terminal with just one wore in it as well.
Any help would be appreciated.
Thanks,