Hi Thanks for replying, yes its a Moulded cable, found the issue though.
in my school boy error moment when I killed my first Roto Board, I also killed my super pinda and roto 3 wire fan.
it looks like during the initialisation M950/M106 because the tach output from the fan was dead it gave the error, a replacement fan arrives this morning so I will be able to confirm it later.
all in all its was a very costly error.
regards