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MOBO screw has a unconductive pad?

Defunct Lizard
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Don't motherboards use the screws for ground because the case is grounded (I think)? What would be the point of these?

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Please don't argue with me, I am just trying to help, or be helped. (we are all humans right?)

 

 

 

 

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Posted

The motherboard is already grounded through many paths, having all the screws grounded isn't necessary.

This is probably for safety to avoid damaging traces or the PCB.

Sometimes people put screws in the wrong hole and it will short a trace by cutting into it.

This washer helps prevent that.

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