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  2. Power supply unit (computer) - Wikipedia

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

    While an ATX power supply is connected to the mains supply, it always provides a 5-volt standby (5VSB) power so that the standby functions on the computer and certain peripherals are powered. ATX power supplies are turned on and off by a signal from the motherboard. They also provide a signal to the motherboard to indicate when the DC voltages ...

  3. ATX - Wikipedia

    en.wikipedia.org/wiki/ATX

    Interior view in an ATX power supply. An ATX power supply is typically controlled by an electronic switch connected to the power button on the computer case and allows the computer to be turned off by the operating system. In addition, many ATX power supplies have a manual switch on the back that also ensures no power is being sent to the ...

  4. Switched-mode power supply - Wikipedia

    en.wikipedia.org/wiki/Switched-mode_power_supply

    An SMPS with a DC input does not require this stage. In some power supplies (mostly computer ATX power supplies), the rectifier circuit can be configured as a voltage doubler by the addition of a switch operated either manually or automatically. This feature permits operation from power sources that are normally at 115 VAC or at 230 VAC.

  5. Motherboard form factor - Wikipedia

    en.wikipedia.org/wiki/Motherboard_form_factor

    A 20 % shorter variant of the ATX form factor. Compatible with most ATX cases, but has fewer slots than ATX, for a smaller power supply unit. Very popular for desktop and small form factor computers as of 2017. Mini-ATX: AOpen: 2005 150 × 150 mm (5.9 × 5.9 in) Mini-ATX is considerably smaller than Micro-ATX.

  6. 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.

  7. Computer case - Wikipedia

    en.wikipedia.org/wiki/Computer_case

    An opened ATX case, front towards right. Components pictured include a microATX motherboard (top), a CPU (beneath the Cooler Master fan), a GPU (middle), and an SSD (right). The power supply is housed in the compartment at bottom. A computer case, also known as a computer chassis, is the enclosure that contains most of the hardware of a ...

  8. Mini-ITX - Wikipedia

    en.wikipedia.org/wiki/Mini-ITX

    Mini-ITX 2.0 SoC mainboard with ATX12V connector installed in a Micro-ATX computer case. The Mini-ITX standard does not define a standard for the computer power supply, though it suggests possible options. Conventionally Mini-ITX boards use a 20- or 24-pin "original ATX" power connector.

  9. FlexATX - Wikipedia

    en.wikipedia.org/wiki/FlexATX

    FlexATX is a motherboard form factor derived from ATX.The specification was released in 1999 by Intel as an addendum to the microATX specification. It uses a subset of the motherboard mounting holes required for microATX and the same I/O plate system as ATX and microATX.

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