Help switching from GTX 980 to RX580 plz

I just switched from an ASUS GTX 980 to an ASUS RX580 and I’m having trouble getting it to boot properly . I have a dual booted system using clover and i am on High Sierra. I have uninstalled all the drivers on windows and MacOS for NVIDIA card and I disabled inject nvidiaweb in config. I have also tried using HDMI as well as dvid but i just get a black screen. My monitor does not show any sort of image, it remains black and doesn’t even show no signal. I don’t even get the bios screen even thought the fans spin up fine and the card has its rgb lights on so is obviously powered and working.

Is there a simple fix to this or do I just have to format everything and start from scratch?

Specs: I5 8400 Be quiet system power 9 500w Asrock b360m pro 4 8gb DDR4 2666 ASUs rx 580 oc rog strix etc

submitted by /u/KnopfiAF25
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