Quote: Originally Posted by
greatwhite 
Hmmm, DP, I'm not sure I understand how you mean it "doesn't test your psu".
Connecting the ATX power supply right to the motherboard of your carPC doesn't test your DC-DC PSU.
I should have been more clear.
Quote: Originally Posted by
Dan95five0 well i tried this out today and it fired up perfecty fine for the first time in my build.
i used a battery charger i have in my garage.
this is the one:
here
NEG and POS off my m2-atx to the proper clamps on to the battery charger. On the ACC line i wired in a switch and then connected it to the POS on the charger also.
i tried it on the 5amp setting first but it wouldnt start up. it would try but then turn off. i switched it to the 15amp and it fired up fine. i started/shutdown using the switch 3 times with no problem.
Not everyone has a battery charger at their disposal, but yours is a good idea.
You can also use a spare car battery. Again, not everyone has a spare car battery.
Some have 12v power supplies that put out enough amperage to power their vehicle computer. Again, it's something that not everyone has.
Granted, not everyone has a spare ATX PSU lying around either...
Most PC geeks (like myself and many others on this forum) tend to have PC parts about, including a PSU.
Understand that this FAQ was written up as a
CHEAP way to power your PC inside. It's also a cheap way to do it using stuff that some people may already have.