new build, no display

[BannedOffender]

Tried building a new pc recently.

 

I have a B450 Gaming Pro Carbon AC

amd rx 580

amd ryzen 5 2600x

with a cosair CX450 PSU.

 

I have all the rgb lights and fans turning on, the ez debug is detecting everything and then clearing itself as if to confirm it's all good...

 

 

is the issue the HDMI cable? do i NEED a dvi cable in order to get a post?

[narrdarr]

Is you hdmi cable plugged into your motherboard or you graphics card?

[Pa1yn]

Reseat the gpu or maybe reseat the cpu 

[BannedOffender]

UPDATE, I did a lot of googling , and it seems to me That the mob is older than the GPU and so won't recognize it without a flash bios updste, so gonna get a USB chip and try it again soon. I may wait for a new antec case, prior to the new build attempt #4