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Dell Optiplex 9010 AIO won't boot

By Pat Nugent
Jul 30, 2016
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  1. The fans both spin up go fast and slow. no post, no video test button gives green light. How can I test the power supply. It has a 4 pin and 8 pin wiring setup
     
  2. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,667   +312

    Having a clear troubleshooting tree helps... look over this one...
    http://www.computerhope.com/issues/ch000607.htm

    As to PSU, multi-meter can test voltages with a back probe of the various connectors. A good candidate for this kind of failure is a lack of the 'power good' signal - but go through the tree step by step.
     

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