the 5v and 5.333v are not the same thing
the 5v supplies the digital section
and the 5.333v supplies the analog section
the reason why you are getting 5.333v but not 12v
is because your 5v is pulling down one half of the
voltage doubler and the opamp which creates the 12v
does not have enough headroom to produce 12v
did you disconnect the conductors on the 12 conductor cable
that supply the 5v to the mainboard
there are two of them
there is most likely a short in your mainboard
problems (power supply, usb, etc.)
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Please be positive and constructive with your questions and comments.
Please be positive and constructive with your questions and comments.