I checked the Dell and it has seperate traces for the 3.3 volt grounds. I
would just use a standard power supply but I really like the Dell supply
because they are so quite.


----- Original Message ----- 
From: "Charles Linquist" <charles@linquist.net>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Monday, September 26, 2005 10:34 PM
Subject: Re: [OT] ATX power supply grounds...


> It is true.  All ATX grounds are tied to one point in the power supply.
>
> Charles Linquist
>
> Dave Lag wrote:
> > John Pearson wrote:
> >
> >> I want to convert my Dell ATX power supply to the standard power plug
> >> pinout. So I need to add the 3.3 volt lines to the main plug. I
> >> noticed that the 3.3volt lines have their own ground.
> >>
> >> Does anyone know what pin on the standard ATX power plug is the ground
> >> for the 3.3 volt lines?
> >>
> >> Thanks
> >>
> >> John
> >
> >
> > I suspect the grounds are all common- meter the dell PSU to see if they
> > are?
> >
>
>
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