On Thu, Mar 8, 2012 at 10:29 AM, Matthias Johnson < [email protected]> wrote:
> The ground is on the power supply. I like Chris have bench tested many > many pcs without a case on a table and using a jumper to turn power off and > on to the board. > To further clarify this lets look at Wikipedia http://en.wikipedia.org/wiki/Computer_case_screws#Motherboard_standoff "Metal standoffs provide an electrical ground connection between the motherboard and case, while plastic standoffs do not." So the metal screws will act as a ground but are not necessary since many PCs also use only plastic standoffs. Also what is the chassis grounded to when you have rubber feet on a PC? It needs the ground on the powersupply. Matthias
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