Hi mate, I didn't get it resolved unfortunately. We purchased a new motherboard in the end from HP and rebuilt the machine to get it going again. The guy at HP I was talking to said the only other option was to return the motherboard to them for repair but the turn around was too long for our user and we opted for a new one. I'm sure there is a way to fix it with reflashing but I didn't have anymore time to work on it. Good luck mate.

Many thanks for coming back to me.
It was a machine that was gifted to me but seems a shame to bin.
Not going to waste much more time on it but not afraid of killing the board by adjusting the jumpers in an attempt to flash