I keep asking if someone has verfied this. Is it true for ALL motherboards, or does it vary with diff manuf? IF it is true, then YES, your strategy would work.From what I've read, the ITX board does not require the +12V
Is someone willing to do a little legwork to verify the need for a regulated +12v supply on EPIA and other mobos?? This would be a very nice revelation that would get rid of the need for the expensive Opus.....
However, I would recommend a simple switching regulator over the (very enefficient) linear regulators. Especially if you start asking for 5+A.