R rubygirl Active member Joined Mar 2, 2015 Posts 40 Location Pennsylvania Dec 16, 2018 #1 Booted my PC up I have no monitor(power won't even turn on). No power or hdd ledsi on front panel not working, fans are running, video card running with green light,hdds are spinning.All fans are running.Orange, blue and green leds on MB are all on when power is on. Blue led on when power is off reinstalled all devices connectors etch Any Help would be appreciated. Power supply or MB ? Or something else all together ?.