If it does not boot at all, it might be a motherboard, processor or Operating System related issue. My first cue would be RMA'ing your motherboard back to Newegg or Asrock, hoping they stand by with their warranty IF your Motherboard is still under warranty... You can also try and RMA your processor IF you cannot try it out on another motherboard. You cold always per se try out your Windows on a different computer, moving the hard drive with windows on it in a different computer so to say. (Don't hold your breath on that one. :/ )
- Edit: I forgot that the RAM might also be the cause in this, if you can, try and run MemTest 86+ (or the x64bit equivalent), or move your RAM used in the PC to another. It could be damaged or corrupted. Removing one RAM stick, and test each one of them might also help test it out.
/Edit.