[sdiy] Converting Computer Power Supplies

[Tony Clark]

> If you mean an internal power supply for a desktop...
> 
> WATCH out !!!
> 
> These are a switching power supply that needs a large load
> on the 5V to operate...  Picture the CPU with the little fan
> as a HOTPLATE !!!

   I think that they typically only need an amp or so to operate, so grab 
a 5 ohm resistor with at least a 10 Watt (probably go 20 Watts) rating and 
hook it up and see if it powers up.  You may need an even heaftier load 
than that.
   Sometimes the power supply will have the connector diagram printed on 
a label on the side somewhere.  Failing that, check here:

   http://members.iweb.net.au/~pstorr/pcbook/book5/power.htm

   Covers most PC power connector schemes.

   Cheers,

   Tony

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