PSU

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PSU

"PSU" stands for Power Supply Unit, and is the part of a PC that transforms AC electricity to DC electricity so it is usable in a computer.

The PSU connects to the motherboard through a few main cables, to include:

  • 20/+4 (24-pin) power connector to the motherboard. This provides main power, including chipset, RAM, CPU, and is responsible for interacting with all components on some level.
  • 4/8-pin "EPS" connector. This connection is established near the CPU and is commonly overlooked by novice builders. The 4/8-pin connector provides a steady stream of power to the CPU.

Other PSU cables are attached to components directly, like GPUs, SSDs, HDDs, and other drives.

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Author: Steve Burke

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