I just built a system and my specs are:
5800x cpu, u14s cpu cooler, rm750w psu, b550-e mobo, gtx 1650 gpu and 2 ssds.
The gpu and psu have 0rpm mode.
I selected the silent fan profile from fan xpert and my u14s fan is around 300rpm. However, I can hear the case in a quiet environment. The case is sitting under the desk and my distance is about 30-40cm. The noise I'm hearing is more likely a motor / engine noise but not like a "hdd jet engine"
Is there a problem with the u14s fan or something?
By the way, my 3 pure wings 2 case fans are at 0rpm, just the