Eureka,
Its fixed.
Well guys my kid brother drove 4 hours last night and brought up 3 old computers fitted the internal speakers and finally we found out the error code 2 beeps then 6.
So he unistalled the motherboard, reinstalled the other one, swapped out the PSU no joy.
Put it all back put another motherboard, tried different memory and then at 4am this morning changed over the usb jumper. So simple!
Happy to report computer now back and working with second fan to combat overheating problem. All working, games, antivirus and all the other junk loading on, just trying to learn how to use windows 7!