Hello everyone,
I'm revisiting this post to follow up on my original issue/question and to share what I've developed as a good solution.
The main issue was/is this: finding an energy-efficient laptop/netbook for home automation use that would automatically restart/reboot after a power failure; either an "unintended" failure due to weather, grid failure, etc., or an "intentional" one--e.g. by powering off with an x10 controller if the computer had 'locked up' for some reason making it unusable. A small laptop/netbook seemed ideal with its small footprint and low power consumption. An Acer Aspire One ZG5 consumed between 21-25w was that I had been successfully using for several years; its 1.5GHZ speed and 1.5GB RAM was just fine for the few tasks I had for it (Activehome, Blue Iris, weather software and some power-monitoring software).
The problem was that my Acer--and none of the laptops/netbooks/notebooks I could find--offered the BIOS setting common to most desktop computers for an "auto restart after power failure" (usually in the Power Management options in the BIOS). I even called Dell and several other companies and was told no such laptop/notebook exists, for perhaps the obvious reason that an "always restart" option didn't make sense for folks wanting to preserve battery power on mobile computers like laptops they would typically have with them for "manual" "power management."
What I ended up doing is building a small computer from components from logicsupply.com. Specifically:
-a Jetway NF92-270-LF Atom Mini-ITX mainboard (
http://www.logicsupply.com/products/nf92_270_lffor $129; this unit runs at 1.6GHZ and can accommodate up to 7 USB slots
-2GB RAM
-USB cables
-AC adapter
-nice external case (M350)
I was out about $250 with everything...slightly a little more than I had paid for the Acer I think.
I just swapped the SATA hard drive from my Acer into the Jetway. I was imagining a nightmare with this based on some internet postings about Windows getting mixed up with this kind of swap, etc.--and of course I cloned this disk as a backup--but everything went perfectly. I had Windows 7 on this hard drive and I recall reading somewhere that 7 can be more forgiving with this swapping process that earlier Windows versions...who knows...but it couldn't have been easier. All I had to do several days later is re-enter the Windows 7 Product key when the system prompted me.
After several weeks of use I'm very satisfied, although I had to do a little "detective work" in the BIOS to find the "auto restart" setting (it was under "Integrated Peripherals" and not "Power Management"). It auto-restarts perfectly and consumes only about 18-19w power. Although I initially used a monitor, keyboard and mouse for setup, long-term I'll just run Remote Desktop Connection from another laptop I use if I need to work with this unit. Externally accessing the Jetway is great via Remote Desktop or LogMeIn. For mobile android access I've been very pleased with PhoneMyPC (this has worked flawlessly on both my older HTC Droid Eris and my current HTC Rezound).
I'll also put in a plug for the customer service at logicsupply.com. An IT friend of mine suggested this solution and this company, and when I checked out their website I assumed I'd be "on my own" in terms of help after-the-sale. But I had several questions after I received the components and several different folks there were quick and helpful getting me on my way.
I think this kind of solution might work well for many folks looking for a low power-consuming dedicated computer for some basic home automation fun...
Coyotefred