Now when i checked carefully with a flashlight, i saw J1, J2 and J3 on the control board. That should be it?
Thanks
Usually, the label on the control board will be represented in the kernel log, in case that is not the case, then the ordering is ascending, so your chain 0 will be J1, the labels are quite visible on the control board, you just need to follow the ribbon cable to see which hash board goes to which socket.
Thanks. Wanted it to clarify it.