An Update.
My computer Tech said that he's had problems with other brand mobo's not posting with ram in slot 1, 2 and 4. So when he got my machine, first thing he did was pull all the ram out and put one stick into slot 3. This made the thing POST straight away so he tried adding on stick at a time and it all worked. He says just one of those random things that seem to work. So yeah if anyone has POSTing problems try that, remove all ram and just have one stick in slot 3.
Cheers
