My PC shows no screen when turned on, help?

[costcosaurus]

Here's the deal. What happened with my PC is that a couple days ago my monitor lost the screen and one of the fans started running louder than usual. I am assuming it was the video card fan making that louder noise, so I replaced it today and I am still not getting my screen. When I turn my computer on, everything is running as it should, and my old video card is producing a louder fan noise. What should I do? I don't want to go to the store again and get another computer part to replace that proves to not be the problem.

Now my computer boots up with no beeps and it usually beeped once when it was working. All lights and fans are working and the computer turns on normally.

 

[costcosaurus]

I think something I can try to do is reset the BIOS on the motherboard, so should I give this a try and see what happens?