something that puzzles me, with the older PC`s you had a 40 wire ribbon cable to connect HDD`s , CD players etc, now we have 80 wire cable. Both types of cable only have 39 connection pins on each end. Can anyone explain please how the 80 wire cable makes any difference but it obviously does.
I understand that but fail to see what it has to do with cable select. Both my cables are 80 and cable select does not work. This does not matter to me as I don`t need cable select anyway. Original posting was to find out about what appears to be unused wires. I.E. four BT wires into your home but only 2 are used.