So I built a computer following this tutorial: https://youtu.be/OoWzSp6SS5c

For the most part, this is an amazing BUILD. I however have this weird issue where, on occasion, I get no video feed on startup. I've corrected the issue a couple times, but only temporarily and I don't even know what actually helped. I've tried force shutting the computer down and restarting, but that doesn't seem to HELP. I've also disassembled the computer and rebuilt it, but still nothing. My only thought is that this issue happens when I force power down instead of doing it the proper way, so I figure restarting it using the OS might fix it, but I can't see anything.Have you tried a different display?

I had a system that the display was connected but not detected occasionally and after 3 boots i might get it to see it. I ended up moving the cable to display to another display PORT which was DVI and the video was defaulting to the other port with no display attached to it because it didnt detect the display at the second DVI port. I thought I foxed the issue by using the topmost DVI port instead of the bottom port, but the monitor completely DIED 2 weeks LATER so it was failing slowly on me. If you dont have a spare display maybe borrow one from a friend and see if it still has problem using their display. If you have 2 monitors connected, swap what ports the displays are connected to and see if the problem follows the display.