Question about Dell Dimension 5100 (D51L1) PC Desktop

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Need to find a control circuit for the push button to start the PC

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  • Frank Zhang
    Frank Zhang May 11, 2010

    why you ned looking for a power on control circuit? what happened your destop?

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  • Master
  • 2,992 Answers

There isn't any control circuit, unless you mean on the system board. The power switch is just a simple normally-open pushbutton switch that's wired to a 2-pin plug (or 2 pins in a larger plug) that connects to the system board. When you push the button it signals the system board to turn on the power supply and start up. If you're having the problem that your computer isn't starting, you may have a bad power supply or system board.

Posted on May 13, 2009

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