I've just started to do a complete review of my power usage at home, and found my workstation (Dell Precision 490 + 3.75TB of disk) is burning upto 200w and this represents around 30-50% of my daily power usage as it's on 24x7.
Considering for 90% of the time, all this runs is, MDaemon, Motorola Homesight (including potentially 320x240 video window), Homeseer (X10 home automation), a dedicated app to allow Homesight and Homeseer to communicate and an Ebay sniping tool, I'm thinking this could reasonably easily be replaced by a mini-itx system and pay for itself within a couple of years.
I've been looking around, the new Nano and Atoms look good, due to the performance, but I'm concerned that I'm still going to burn 40w+ and maybe I don't need the performance.
What would people recommend, my requirements are:
1) Low power consumption
2) Performance good enough to run my mailserver and a few small apps. I used to run most of these apps on a P4 2.6GHz CPU so anything roughly equivalent would do.
3) Gigabit network.
4) Ideally it must have at least one serial port
5) I want the price to be <£200, ideally, although I guess for the right system, money isn't going to be a major issue.
Things I don't care so much about
1) Noise - it's never going in the lounge, so doesn't matter.
2) Size - irrelevant as there's plenty of space in my office
3) Looks, it will be hidden under a desk so can be as ugly as they come, no-one will see it.
I'm wondering if a C7 CPU would be up to this and if the power consumption of one of these is very much lower than the atom. The atom looks interesting as the price is almost disposable if it turns out it's not up to the job.
thanks
mike