If it's hydro-cooled why this loud fan noise?

What your Bitaxe is up against

nostr:nprofile1qqszwaxc8j8e0zw9sdq59y43rykyx3wm0lcd2502xth699v0gxf0deg94az0s immersion and direct to chip both end at a radiator fan bank. i have mined since 2015 and the quiet part is only quiet inside the container.

Hydro-cooling is mining growing up. Air cooling was the hobby era. Water is the industrial era. The hashrate does not care about your noise complaints.