I built a custom pc yesterday and could not get it to display to my moniter. Ive tried multiple hdmi cables(that both work) and tried using my tv as a moniter instead but still no luck. I brought it to a pc repair shop and I had the wrong PCIe connecter in the gpu. They didnt use my cables or moniter and they were able to get it to show the bios on a moniter. I brought it home but it still wont display. Whats the issue with mine? Is there a specific hdmi cable I need or something?