Re-purposing a 4u case from work where the servers were upgraded from 4u chasis to 1u. It's a Rosewill RSV-R4000 with 2 extra optical bay cages, so a total of 9 optical bays that I will be using to place hot-swap bays. I will be using an lga 1150 board with a xeon e3-1245v3. The server will be primarily used as a storage server and backup server, but will also be handling my 2 Minecraft servers and other various game servers currently hosted on an fx-8150 desktop build.
I will be replacing all the fans in it with silent-running fans, but my question is this: considering the size limitation of 152mm, what quiet coolers would you recommend for a 24/7, 60% workload server?
Currently all I have found are:
Antec Khuler Box
AIO water cooler are out of the question because there will be no spot to mount a 120mm on the case with all the hot-swap bays.