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  2. ATX - Wikipedia

    en.wikipedia.org/wiki/ATX

    ATX. An ATX motherboard. Comparison of some common motherboard form factors (pen for scale) ATX (Advanced Technology Extended) is a motherboard and power supply configuration specification, patented by David Dent in 1995 at Intel, [1] to improve on previous de facto standards like the AT design. It was the first major change in desktop computer ...

  3. Power supply unit (computer) - Wikipedia

    en.wikipedia.org/wiki/Power_supply_unit_(computer)

    Power supply unit (computer) An ATX power supply unit with top cover removed. A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a desktop computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input ...

  4. Power good signal - Wikipedia

    en.wikipedia.org/wiki/Power_good_signal

    The ATX specification defines the Power-Good signal as a +5-volt (V) signal generated in the power supply when it has passed its internal self-tests and the outputs have stabilized. This normally takes between 0.1 and 0.5 seconds after the power supply is switched on. The signal is then sent to the motherboard, where it is received by the ...

  5. PS-ON Signal - Wikipedia

    en.wikipedia.org/wiki/PS-ON_Signal

    PS-ON Signal is a pin on a 20-pin or 24-pin ATX-specified power connector used to turn a personal computer power supply unit on/off. The PS_ON pin is normally pulled high in an open-circuit, but will turn on the power supply when it is pulled low, by shorting it to the common signal (COM). Conversely the power supply is turned off when the PS ...

  6. File:ATX PS signals.svg - Wikipedia

    en.wikipedia.org/wiki/File:ATX_PS_signals.svg

    English: Pinouts of ATX power supply connectors, displayed according to Intel's Power Supply Design Guide for Desktop Platform Form Factors v1.2 (2008) and v1.31 (2013) COM = COMMON VSB = Volts Stand-By

  7. Molex connector - Wikipedia

    en.wikipedia.org/wiki/Molex_connector

    Molex Mini-Fit Jr. connector as used for ATX power supply. A Molex connector is a two-piece pin-and-socket interconnection which became an early electronic standard. Developed by Molex Connector Company in the late 1950s, the design features cylindrical spring-metal pins that fit into cylindrical spring-metal sockets, both held in a rectangular ...

  8. Motherboard form factor - Wikipedia

    en.wikipedia.org/wiki/Motherboard_form_factor

    In computing, the motherboard form factor is the specification of a motherboard – the dimensions, power supply type, location of mounting holes, number of ports on the back panel, etc. Specifically, in the IBM PC compatible industry, standard form factors ensure that parts are interchangeable across competing vendors and generations of ...

  9. 80 Plus - Wikipedia

    en.wikipedia.org/wiki/80_Plus

    80 Plus. Logo. 80 Plus (trademarked 80 PLUS) is a voluntary certification program launched in 2004, intended to promote efficient energy use in computer power supply units (PSUs). Certification is acquirable for products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load.