Motherboard issues resolved
Turns out the issue with my workstation/development box (raider) was a screw which had somehow got under the motherboard was causing it to short hence it would not switch on. *sigh*
Anyway after a bit of taking the motherboard out and cleaning out the dust which for some odd reason makes it's way into the inside of the case the box is back alive and kicking.
It's good to hear this loud machine's fans spinning away. :)