Does the Corsair CX430 with its single 120mm fan fit this bill? Is a 120mm fan required for silent operation?
I can attest that the CX430 is very quiet, and I would say inaudible IMO, as I use this PSU in my HTPC in my living room.
Generally speaking, the larger the fan, the lower the fan speed, the lesser the noise (of course there are some exceptions).
Outside of a fanless PSU, the quietest PSU's are going to contain a 120mm or 135mm fan. For the price/performance (IMHO), I don't think you can get better than the CX430.Edited by wiley165 - 6/28/13 at 11:37am