Question My monitors don't react to my computer booting up

terafic

Prominent
Feb 7, 2019
5
0
510
I had to remove my GPU and swap it with friends because he was having some issues with his computer, he has the same GPU as I have which is rx 580 4gb and everything worked fine. However when I installed my gpu back and pressed the power button, my monitors are blank as if I didn't press it.

Whole PC seems to be working fine: gpu led lights up and fans spin, CPU fan spins mouse and keyboard lights up but my monitors are blank

I'm pretty sure I haven't touched anything else when I was installing my gpu back, all cables are attached correctly which means hdmi and dvi and the gpu is powered up. The monitors react when I unplug display cable and then plug it back it just says that there is nothing to show as if the gpu didn't emit anything to monitors.