Hi there, This is my first post and I hope I have posted in the correct section to get my answer. I am looking for best and most quite 24Volt PC cooling fan (120mm if possible), would anyone put me in the right direction please? Many thanks.... Tahir
PC fans aren't made in 24V varieties. 2-, 3-, and 4-pin fan connectors all supply 12V each, and the fans are designed to accept 12V input. The highest voltage rail on a PC power supply is 12V also, and 4-pin Molex connectors only have 12V and 5V wires.
I doubt you'll get a quiet one, they seem to be high cfm fans like the Delta's e.g. http://www.eio.com/p-16889-delta-ffb1224ehe-fan-dc-axial-24v-120mm-x-38mm-4000rpm.aspx