Question I bought new parts and it’s not posting

[beyondlogic]

OK, so I’ve bought a bunch of brand new parts for my PC but I’m having issues with powering on the fans are turning, but I get no display I have updated the bios still no post. The new parts that I’ve installed are the motherboard (Gigabyte b550 arous elite ax v2), the ram(Corsair vengeance pro 32 gb 2x16) a new case (Corsair 4000x rgb) a radiator (Corsair h150 rgb ) and the PSU (Corsair rm750e). I don’t know if I got a dead motherboard or if I killed my CPU anything could help. I’m just really tired, been at it for hours trying to fix it.
Edit: I should mention this motherboard has rgb but they’re not turning on.
Amd ryzen 5 5500
Sapphire Rx 6600

what type of hdmi or display port are you using take a picture of the rear of the case.

also flip the radiator so that the tubes are at the bottom of the case going up towards the cpu otherwise it will kill the pump faster and the actual block will be filled with mostly air in that configuration.

View: https://youtu.be/BbGomv195sk?feature=shared
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[marcusbarosanu]

what type of hdmi or display port are you using take a picture of the rear of the case.

also flip the radiator so that the tubes are at the bottom of the case going up towards the cpu otherwise it will kill the pump faster and the actual block will be filled with mostly air in that configuration.

View: https://youtu.be/BbGomv195sk?feature=shared​

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Where do you expect me to fit does tubes ? I’m not cutting my BRAND NEW CASE FOR THAT.
Also I already send back the motherboard. I used the same hdmi in my previous build i know it works .

https://imgur.com/a/6LnsOMg

View: https://imgur.com/a/6LnsOMg

 

[Paperdoc]

Ah, great that you knew about stand-offs already! Some don't.

 

[marcusbarosanu]

Ah, great that you knew about that already! Some don't.

That was the first thing i tried when installing it
Tho honestly i should have bought the h100 got the 150 really cheap like 70€ cheap from amazon warehouse it just had some bend fins nothing missing and it’s seems to work .