Newegg still carries your board, and offers overnite shipping if you can use them. They only ship to usa and canada. Otherwise, check ebay in your part of the world. I would still open the case and turn it sideways and see if any loose parts come out. Then reseat the 24 pin atx connector, and look again for loose connections. You can try borrowing another power supply and hardrive and hook them up to see if that helps you get the post screen.