Bfgminer just names your asic 0-3. So working out the control board placement is irrelevant I think. I have not done this so could be wrong though
Was that for me? I'm not sure it's accurate. I'm not using bfgminer, btw. The bash instructions say to count ports starting with 0 in order to ID the "if" statements. Since my hardware is only using 2 of 6 plugs/ports, the bash script needs to know which it is sending instructions to.