For something low power you can use an external power brick and a "picoPSU" DC-DC converter with 12V in and 5V + 12V out with appropriate connectors. Check out mini-itx.com. Fanless power supplies are also available upto about 480W.
Though I don't worry about fan noise as my fileserver is not too far from a somewhat noisy 'frig! The FS is a standad tower case that can hold 8 disks (holds 6 now). It has large fans that are mostly silent. On Jun 5, 2013, at 11:52 AM, Aram Hăvărneanu wrote: > I want to replace my CPU and file servers. I don't need much > performance, a new Atom is more than enough, but I'd like something > that supports at least 8GB RAM. This board seems nice: > http://www.supermicro.com/products/motherboard/ATOM/X9/X9SBAA-F.cfm. > > Where to put it though? > > I want something completely silent. Think Soekris but 64 bit and > with a faster CPU. That means no PSU fan. Low power Atom boards > consume less power than laptops, I don't understand why nobody seems > to produce a design that does not use a fan for the PSU. The CPU > servers will be diskless, but for the file server I'd like something > that can fit a few drives. That means more than two. Four would be > ideal. > > I am not limited to that board nor to Atom CPUs. I am curious what > other 9fans use or would like to use. Thanks. > > -- > Aram Hăvărneanu >
