- Mar 18, 2010
Adapters to make ATX power supplies work with 12VO wouldn't be terribly difficult. The only gotcha on 12VO is the +12vsb rail, which no ATX PSU will have. Ideally, this could be worked around by hanging a boost converter off the +5vsb rail, but 12vsb is rated for 1.5A, which is far too much to be pulling from +5vsb. To get around this, you can use an external wall wart, or an internally mounted 12v supply for the 12vsb rail.
I could see early 12VO motherboards coming with a dongle to connect to the +5vsb and disabling whatever runs off the +12vsb or putting power limits on.
DIY builds are niche and don't get much attention for sure, but sooner or later the regulations will trickle down.