Careful, they get pretty damn hot.
Originally Posted by davidp
My server is 1.0GHz and micro-ATX board. It's plenty for what I do, and it eats almost no power . I use it for backups, web server, svn server, schedule downloads so I can get them off-peak and a distributed compiler (distcc). It runs a tiny fan on the CPU, meaning the only other fan is the PSU. The only thing I want is a bit more horse-power to record live-tv, or run a headless virtual machine.
I would say, try build a micro-ATX server (most CPUs are soldered on). That way you've got most of the components, the case from the AMD, hard-drives, perhaps even memory.
zac@mercury:~ $ uname -mpi
i686 VIA Nehemiah CentaurHauls
zac@mercury:~ $ cat /proc/cpuinfo
processor : 0
vendor_id : CentaurHauls
cpu family : 6
model : 9
model name : VIA Nehemiah
stepping : 8
cpu MHz : 1002.121
cache size : 64 KB
zac@mercury:~ $ uptime
14:26:08 up 206 days, 2:21, 4 users, load average: 0.17, 0.30, 0.13
And beware of making SSH visible to the world, the amount of attacks I get even running a non-standard port is bizarre.