We just discussed this very thing last week.
Turn you motherboard upside down. One (or two) of the mounting
holes will have a ring of solder surrounding it. This is the hole
that must match the metal standoff in order to ground the mother
board to the case.
It is not enough to rely on the connectors from the power supply.
A ground MUST be a __direct__ path to earth. The electrical power
cord plugged in to the wall has a direct connection to the PC's
metal case, this is sometimes called the chassis ground or
earth ground.
Jim Meagher
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> -----Original Message-----
> From: PCBUILD - PC Hardware discussion List
> [mailto:[log in to unmask]]On Behalf Of Jack Parks
>
> Hello List,
>
> I am starting to put my first PC together from scratch. After reading
> this list for several weeks and other reference material, I think I am
> ready. My question for the list pertains to grounding of the MB.