the capcom io is powered by my happ->HAS yes. But the capcom is only connected to my Naomi with vga audio and USB. Did you want me to try not sending 12v to the capcom?But are you power to your I/O through the JAMMA edge connector?Mine: NetBooting with Sun PSU connected to the Naomi. My capcom IO is powered through my HAS with a separate happ PSU. For the record pretty much everything works well since I added the Sun. I had a small ATX but it was underpowered.
Still no NGBC but I haven't fiddled with it in a while.
Just unsure why that would matter...