I have searched endlessly for weeks now with no solution, so I'm wondering if maybe someone here could help me.My computer will boot, fans light up spin, keyboard lights up and so does mouse. But monitor says no signal and goes to sleep, tried using a different monitor still no luck, checked ram, nothing, checked video cards, nothing again, pulled the battery out for 30 minutes also no luck, also tried removing the power cable hold down power for 30 seconds and trying that also no luck. When i press the power button on the computer the Power and HD lights illuminate for only a second or two than nothing. I pulled the HD out of my laptop and hooked it up to my computer also nothing. Any help would be awesome thanks! Its a custom built computer and has ran for quiet some time just fine. The motherboard on it is an Asus (idn exactly which model but its a crossfire if that helps)