I recently built a WHS mini-itx atom based system. The chasis is used for this is a cube based mini-itx cabinet that has a rear 92mm fan. I want to make the system as quiet as possible. I have already replaced the chipset heatsink/fan with a zalman nb47j and am in the process of replacing the flex atx psu fan with a scythe mini kaze 40mm fan. The only thing left in the case that is noisy is the 92mm fan. Its a martech 92mm fan that spins at 2400 rpm and is supposed to provide 48 cfm. While it provides decent cooling it is very loud. What 92mm fan can i replace this with which is just as good or close but not as loud.