AMD processors now have fairly good thermal behavior when they are idle, although it obviously helps if one can enable APCI and power management capabilities to either throttle down the CPU speed or even go into sleep mode.
What about other architectures? If you don't need x86 compat, perhaps CPU models in other arches have much lower consumption?
Certainly this is true of the ARM and even the Motorola 68K, as you mention:
For a box that runs mainly as router, apache, postfix, cyrus, ... even an old MC68k would do just fine (esp. if you are limited by bandwidth, not CPU cycles...).
...there are a lot of people using an embedded M68K as a low-power applicance computing device.
Perhaps something like Soekris boards could be useful? Has someone used them to build a power-saving server?
Sure. I've got a Soekris net4801 sitting right next to me which is running some custom network monitoring/IDS/IPS software, and the Via EPIA mini-ITX form factor is another good choice for low-power computing. The EPIAs seem to have slightly flaky ATA support, though.
Anyone living in a country with exorbitant high taxes on power lurking here?
People here in the US got to pay for Enron and the like, sure, especially those in CA.
-- -Chuck
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