PcMasterRaceNewborn

This is why its always best to build the pc outside of the case First. It means you know it works before you shove it all in the case.
 
Id double check the motherboard standoffs are all in the right place and there's not one thats in the wrong place touching the back of the motherboard.

for mine they dont have to be lined up perfectly it can be off just slightly  and i can still screw it in 
 

What powerline kit are you using? Some of them are considerably more sensitive to the "quality" of the power in your home. If it was consistently bad, i'd say your router pc may be an issue, but with it being intermittent it makes me think the power in your home isn't great.

cool, thanks. iwill be buying this one then