The embedded power supply in my machine has gotten damaged/weak, It is used for powering only the Embedded Computer/Controller on the Machine. The Embedded Power Supply looks something like this. http://i.stack.imgur.com/pLFQc.jpg
The Power Supply has outputs of 12v 8A 5V 4A -12V 1A and input of 220VAC, these are the same outputs/inputs that an ATX PSU gives, so can substitute an ATX PSU for it because they are normally much higher rated than the embedded ps and cheaper too.
I am thinking of making it start by shorting the green and black wire, and connecting it to the machine, by making appropriate connections.
Would something like this work or is there a Fundamental difference b/w the two types of power supplies?