I took the server home and since this server is making tons of noise, I moved the board and disks to a standard mini tower. Everything works, but this cooler making lots of noise and since I don't have a garage to put it there (it will be located in my room) the noise is a big issue.
I have seen a desktop variant for a G34 socket based cooler (like this one: Noctua NH-U12DO A3), but it's very expensive (100+ dollars including shipping) which sounds a bit absurd.
I didn't find the right solution from the internet.