I just upgraded my #BitAxe with a Noctua fan, replacing the stock fan and skipping the Ice Tower. Interestingly, the temperature increased from 56°C (with the stock fan) to 62–66°C with the #Noctua. Guess I will buy ice tower now. 
Discussion
I replaced a failing generic fan on an Ice Tower with a Noctura and dropped ~2°C to 57-58°C
Like this:
.webp
Another interesting option might be the Argon THRML. Pictured here on a bit axe:
https://d-central.tech/wp-content/uploads/2024/02/The-Bitaxe-Argon-THRML-png.avif
On one of the bitaxes I got this ice tower ! And overclocked it to the maximum. Getting 57 Celsius maximum.
Will probably get new heat sinks for the other two gammas with noctua and enough
nostr:note1yp840z4zjqvhvrz25cenwvuxwhqf97ws7z9hq2lmkc6s0r5uh4pqmd6cpt