Black Screen

[ZedGoZi]

Whenever I start up my pc the lights come on and the fans spin but I only get a black screen. I have no idea what to do please help.

[ZedGoZi]

Check your motherboard to make sure everything is plugged in right.  Make sure your computer is properly hooked up from the monitor to the GPU.

I have checked everything multiple times and it is all in the right places. Everything is hooked up how it should be.

[ZedGoZi]

Did you flash the bios recently?

No, I took it to best buy a while ago and they said it was the gpu and I replaced it and it still does the same thing

[ZedGoZi]

Ya, Geeksquad isn't the brightest.  It could be your mobo acting up, or even your PSU.

It may be the psu because I replaced the mobo after it started to black screen.