How will I know if my Compaq has a propriortory diet

I have a desktop SR5233 WM under Vista 32 bit.  I have problems of energy supply, but when I replace it with a standard ATX P/power I get nothing... Thank you

I installed the Diablotek and only plugged into the m/b 24 p connector and PIN 4. I tested previously the p/s with a cheap Tester and it showed the good. I even tested with a multimeter and PIN 4 showed 11.82 v. However, the system would not turn on. I then found an another atx p/s here (305v) and installed and now the system boots... I guess that the new one was defective

Tags: HP Desktops

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