> there is absolutely nothing complicated to have a
>
> "on power return, boot computer"
>
> option. it used to be the default.

You all are missing the point.  As soon as the motherboard gets power, it 
starts booting.  That is how it has always worked.

The problem is how to get the appropriate power to the motherboard in the first 
place.  If you lose power to the motherboard, either because the power supply 
lost its external (wall) source or because something in the power supply went 
bad, the computer will boot when power is supplied to the motherboard again.  
The problem is, the BIOS and the ACPI are on the motherboard and need power in 
order to function, and they can't tell the power supply to turn on if the power 
supply is not already supplying power to them.  It's a circular regress (or a 
"Catch 22").

There is no setting to tell the computer start booting when it first gets power 
-- it does that automatically and you can't disable that "feature".  The 
problem is how to get the power to the motherboard in the first place, and you 
can't do that with software that doesn't do anything unless it already has 
power being supplied to it and the computer has already started booting.


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