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Anonymous users2024-02-0720 for the old style and 24 for the new style.
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Anonymous users2024-02-06The ATX power supply is used to convert the AC 220V power supply to the DC 5V, 12V, and 24V power supply used in the computer.
There are two main versions of ATX power supply, one is a version and the other is a version. In addition to the different position of the cooling fan, the activation current of the ATX power supply is also different.
The version is only 100 mA, while the version has 500 mA and 720 mA. This means that the ATX power supply will not be the same as the version"Allergies", which is often affected by external voltage fluctuations and starts the computer on its own.
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Anonymous users2024-02-05The pins of the 20pin interface of the ATX computer power supply are defined as follows:
Definition of ATX power switch pins:
The 14-gauge pin (pin14 ps-on) is used to control the power on and off.
The control logic is that the "low potential" is turned on and the "high potential" is turned off, that is, after the PIN 14 pin and the GNND pin (the black pin marked "com" in the figure) are shortened to the stove code, the potential of the pin 14 itself is reduced, and the power is started, and if it is disconnected, the power is turned off.
Therefore, if you want the ATX power supply to start separately, you can short-circuit PIN 14 (the green pin marked "PS-On" in the picture) with any GND pin (the black pin of "COM") (as shown in the figure above, the switch is closed and the power is turned on).
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Anonymous users2024-02-04The ATX power supply has a PS ON function, the green wire can be grounded to turn on the power, and the green wire can be suspended to turn off the power, which can realize the software shutdown, while the AT power supply does not have this function.
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Anonymous users2024-02-03To put it simply, AT will turn on when the power is turned on, and the ATX will be powered on when the switch is pressed.
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Anonymous users2024-02-02Due to the use of dual +12V outputs, the main power interface connected to the motherboard has also been increased from the original 20 pins to 24 pins, which are composed of 12 2 main power supply and 2 2 CPU dedicated power interfaces. Although the interfaces are connected, the two +12V power supplies are completely separate and output independently on the wiring. In this way, the higher version of the power supply can divide the 24-pin main power supply into 20+4 parts, which is compatible with older motherboards that use the 20-pin main power connector.
This diagram is the interface diagram.
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