I have a Phanteks Enthoo Pro 2 case with the tempered glass side panel, a slew of Noctua 140 mm and 120 mm fans, and a Supermicro M12SWA-TF motherboard.
The Noctua fans are all virtually silent, but the motherboard's 40 mm PCH fan is whiney. And it spins at a constant RPM, regardless of...