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Hello everyone, in this lesson we will learn about the power supply interface in discrete graphics cards

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The power supply interface of the discrete graphics card is mainly used to supply power to the graphics card.

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But not all graphics cards have an independent power supply interface,

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because the golden finger can also supply power

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It's just that the gold finger can only provide a maximum of 75W of power supply

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If the power consumption of the graphics card exceeds 75W, then an additional power supply interface must be used

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The common specifications of the power supply interface are 8PIN, 6PIN and the latest 16PIN

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Their appearance is shown in the image below

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Graphics card manufacturers will randomly match 6PIN ports and 8PIN ports

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according to power supply requirements

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The 16PIN port is currently only used on relatively high-end 3090 or 4090 graphics cards

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A graphics card has only one 16PIN interface

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The 16PIN interface is composed of 12 power supply lines and 4 signal lines

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We should pay attention that the power supply interface of the graphics card must be fully inserted when in use,

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and any PIN pin cannot be left behind.

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If there is a PIN pin that is not fully inserted, then generally it cannot be turned on.

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Even if some graphics cards can be displayed,

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it will prompt us to turn off the power and plug in the PCIE power supply cable