Re: PC is dead after installing new board



Well done Bob. Put a piece of sturdy tape over that mounting point in the
case.
best wishes..OJ
>
"Bob H" <bobg4uyi@xxxxxxxxxxxxx> wrote in message
news:4310ae16$0$6469$cc9e4d1f@xxxxxxxxxxxxxxxxxxxxxxxxxxx
> Can you tell me what a single point ground is in realtion to a
> motherboard? Does it mean only one connection/standoff should be ground?
> Thanks
>
> w_tom wrote:
>> The proper way to mount a motherboard to that plate is the
>> single point ground. Only one connection from motherboard
>> ground to steel plate. All others should be non-conductive
>> (ie nylon). The single connection from motherboard to chassis
>> is located adjacent to were IO and power supply connections
>> are located. This makes the entire system less susceptible to
>> crashes due to transients such as static electric discharges
>> to the case.
>>
>> Intel even has specs for where this single electrical
>> connection should be located. Defined in a technical
>> descriptions for how ATX pc board layout. Long since lost the
>> spec, but the principles are well proven. Motherboard should
>> have only a single conductive connection to its mounting
>> plate.
>>
>> Bob H wrote:
>>
>>>OJ, yes it certainly is somewhere. I have insulated the screw mountings
>>>and put it in, then tried it after each screw, then I found that the
>>>short is bang in the middle somwhere, because if I put a screw in the
>>>middle, it goes dead,but when I take that screw out it works ok.
>>>Thanks
>
>
> --
>
> Bob H
> Leeds UK
>
>
>


.



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