The reason I asked the above question is that the builder is trying to promote a different PSU. He believes that the PW-200-M will be all that I need.
It doesn't appear to have any soft start or smart features at all and touts as being small and eliminates a number of cables by being able to be plugged directly in. Something tells me for my own peace of mind that I should still go with the M2-ATX with all of it's features. I've roughly determined that the power requirements for the MB, processor, and HD can be between 70 to 90 watts, then add the approximately 15 watts from the TS and the the minimal requirements of the WIFI, AM/FM and GPS and I believe I'm still well below the wattage rating of the M2-ATX.12V Micro Power Supply
- 200 Watt DC-DC ATX power supply (PSU)
- Over 95% efficiency, ultra compact
- 12V input
- 100% silent, fanless
- Plugs directly into the moterboard ATX connector
- ROHS compliant version (limited qty, EU customers first)
On top of that, the PW-200-M would still need some auto start-up / shut-down and control features for the rest of the system. The items listed in the mp3car store look nice but I know nothing about them, nor do I see any declaration of these items in anyone's signatures (unless they're not considered worthwhile mention).
Micro Shutdown Controller
or the CarPC EZ v2.5d Simple ATX Power Controller
or the CarPC EZ v2.5d Advanced ATX Power Controller