Re: External PSU Replacments & Fanless P3 or Celery

["paul_watkin" <paul_watkin@xxxxxxx>]

Hi Ian,

Thanks, I was really trying to refer to the circuitry necessary to 
take the output of the switched mode portion, which I assume 
generates one fixed voltage slightly higher and regulates it to the 
various other voltages and more importantly provides the right signal 
elements to enable the PC to realise it has actually got an ATX psu 
and allow the keyboard power on etc to work.

I will actually be supplying it with power from a commercially 
manufactured switched mode laptop style power supply initially, which 
as an aside according to an RS Brochure that landed on my desk this 
morning they are knocking out for about 30quid. 

The eventual goal is to move some of the lower current bits of kit to 
one large PSU located in Node 0 and have the rest run as quiet as 
poss.

On a slightly parallel track does anyone know what the highest clock 
speed of Celery or P3 you can run fanless is??And recommend a 
heatsink.

Cheers

Paul

Most ATX PSU's don't have a transformer per se..
> They are switched mode power supplies, and pretty high current ones
at that.
> 
> It has certainly been my experence that home built switch mode 
units either
> work,
> and buzz, or explode, and catch fire.
> 
> Have you considered moving the display/user interface away from the
PC,
> rather than moving the PSU?
> 
> Ian.

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