Thanks DGroves.
The Z230 has only 2 header pins on the motherboard. The other models have more and seem, by the look of the cables to have some jumping going on.
I'm an electronics novice at best.
I wonder does anyone knows if the 2 header pins on the Z230 motherboard are power & ground?
I really appreciate you taking the time to reply DGroves.
Photo of motherboard headers attached.