Is this a conventional motherboard or are you using an industrial SBC? I recently ran across a SBC that had a DC-DC power supply chip onboard so it only needed a nominal 12 volts to run. I was thinking of using that with a 12 volt LCD panel for my onboard computer.
All the best,
Robert, I am using a new motherboard from Via, the PX10000G
. Overnight mobile computing seems to have gone from ATX boards, to mini-ITX (6.7" x 6.7"), to nano-ITX (4.7" x 4.7"), and now with the creation of a new ultra-low power Via board to pico-ITX (10cm x 7.2cm). This PX10000G that I have comes with cables for key/mouse, video, etc, and has connectors on it for USB and a lot of other stuff. Pretty much everything comes off of it with headers, but the ethernet and VGA have actual connectors on the board.
The manufacturer claims it uses under 13 watts of power, about as much as a kid's night light, but I have not measured the power usage yet. In any case it's very good on power. I use DC-DC conversion that was intended to be used in automotive computing but of course it'll work just fine on the boat too. Here are similar units
to what I have. I don't have all my power stuff hooked up and working yet, but in the next week or so I will start running it all from a battery.
Of course you could run windows on this too, though I doubt it would fit into 4gb of memory like I am using for linux. With an SSD drive you could run windows though for sure. Anyone who is trying to do something like this, I would suggest Via as the manufacturer for the motherboard because they are kind of the leader in this field for the moment.
Here is a picture of the PX10000G, it's the board on the right half of this picture, in the person's left hand. The board on the left half of the picture, in the person's right hand, is actually an I/O board that brings out the audio connectors and USB connectors if you want to use it, but you don't have to, those things are still available via pins on the PX10000G board. You can see in the picture that ethernet and VGA have standard connectors. The VGA connector is just behind the person's left thumb.
And here someone jammed a PX10000G into an old Gameboy case.
(Here is the source article
for that image)
By the way, in that article they seem to be claiming that they are running windows off of the 4gb CF card pictured, I didn't know windows would even fit in 4gb (?).