cpu powers on

CPU AMD 8350 GPU msi radeon r9 290x MoBo Asus m5a97 evo r2.0 RAM corsair 2gbx2, 4gbx2 = 12gb PSU corsair 750W I face this issue sometime. When I press power button , PC turns ON, all the fans are running but the no boot happens (the Load LED does not blink) and no display. Again I try few times...