Thanks for all of the help guys. Ive been able to remove the motherboard and have taken a few pics of the back. It looks like flux residue + 5 years of dust / spiderweb? Anyhow I'm not surprised it was struggling to work when you look closely it's almost as if it's been crawling from conection to conection!
Anyhow I have cleaned it up as best I can using isopropyl so I'm letting it dry before I try and bench test it.
Here's the pics for those that are interested:
Will let you know what happens nextEdited by Morkrah - 1/29/16 at 7:13am