I got a new gpu (gtx 1080) to replace my old 970, and due to space limitations because of cables I ended up having to practically rebuild my pc instead of just swapping out the cards, but the issue I'm facing is when I power on the PC, all the fans start spinning but my monitor doesn't display a picture. I have tried multiple wires, monitors etc. I have tried removing the gpu and plugging a hdmi into my mobo but the issue persists. I have also tried putting my 970 back in, but again I get no signal on my monitor. This really sucks because I was hoping it would be a simple swap but instead it's been 3 long days of no pc and a lot of frustration. Any help is appreciated, thanks.