The pc was working just fine. I turned off one night and next morning it's not starting. If I press the power button of the case; nothing happens; not light anything. I opened the case and removed my Graphics card and put the dvi cable in board graphics and pc is working just fine. For a test purpose; I again put the gpu but same as before. Not starting. My config is i5 4570, 8 GB DDR3, Asrock b85 fatality, sapphire r9 290, coolermaster 700w bronze. Pc is about 3 years old. Thanks.