Hello, my config is: psu corsair gs600 , motherboard is gigabyte z77md3h, i52500k, 4gb corsair vengence ,asus r9 270x 2 gb graphics, monitor i connect to tv via HDMI , all was going well but today i turned it on it showed the bios screen and after three seconds the screen goes black with cursor on the upper left corner with no text and screen dies off, tried removing the graphics card same story with onbord not it wont boot at all.... plz help...