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standoff screws?? any advice.. - Page 3

post #21 of 23
Quote:
Originally Posted by RonindeBeatrice View Post
ATX spec makes zero mention for requiring computer cases to be grounded. Otherwise we wouldn't have plastic, wood, or other non-conducting case materials.

In fact, the only time I've ever seen someone shocked by, or have been shocked by a computer case is when some knucklehead had a power feed from the PSU touching the chassis somehow.
True, but that is not he debate at hand.

I actually have had an experience where a chassis was causing shocks because the receptacle that the PSU was plugged into has reversed polarity. The cheap PSU had the neutral bonded to the case, whereby it was actually the hot conductor. Whenever anyone would touch the computer chassis and anything that was earthed (such as the connector on the coax to the modem), they would receive a shock.
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post #22 of 23
Quote:
Originally Posted by thrasherht View Post
I have no clue how your case is grounded. But the rest of your hardware is grounded via the PSU ground harness. There much be something like a video card that is getting ground and grounding the case by the PCI bracket, but you don't have a typical ground setup if that is the case.
The best way to make absolutely sure your case is grounded right is to use the metal standoffs with your board.
As I tried to explain, the PSU is bonding the chassis through the PSU mounting screws.

I assure you, I can remove everything except the PSU, and my chassis is equipotential to earth.
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post #23 of 23
metal or plastic standoffs are fine.
If grounding was an issue, how can I build a computer on a cardboard box and have no issues?

As said, the PSU is what grounds the system.
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