How does the ATX power supply standard differ from earlier standards regarding voltage rail focus?

Answer

It focuses heavily on the +12V rail

The ATX standard shifted the focus of power distribution toward the +12V rail. This change was implemented to better support the power requirements of modern processors and graphics cards, representing a significant evolution from older standards where the +5V rail was the dominant output.

How does the ATX power supply standard differ from earlier standards regarding voltage rail focus?

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History of Computer Power Supplies - YouTube

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