On Thu, 2007-05-17 at 22:44 -0400, Gaston Gagnon wrote:
> Somehow related to the question of the OP:
> In a PC are digital and frame grounds connected together and in turn 
> connected to AC main ground?

Pretty much universally yes. The AC ground is connected to the frame in
the power supply. The digital ground is connected to the frame through
the screws holding the motherboard to the case, and any expansion card
plugged in and screwed onto the case. Even the serial/parallel/USB port
sheilds are connected to digital ground and are in contact with the
case.

TTYL

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