An SMPS (Switched-Mode Power Supply) connects to various components inside a computer to provide them with power. These connections are typically made using specific connectors designed for different components.
Here's a breakdown of where the SMPS connects:
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Motherboard: The SMPS connects to the motherboard using the P1 connector (also known as the main power connector). This is typically a 20-pin or 24-pin connector and is the primary source of power for the motherboard and many of the components connected to it.
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CPU (Central Processing Unit): A dedicated P4 connector (a 4-pin or 8-pin connector, sometimes labeled EPS) from the SMPS supplies power directly to the CPU. This provides stable and sufficient power for the processor to function correctly.
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Storage Devices and Optical Drives: The SMPS uses MOLEX connectors and SATA power connectors to provide power to hard drives, SSDs (Solid State Drives), and optical drives (like DVD or Blu-ray drives). SATA connectors are more common for newer devices, while MOLEX connectors are often found on older devices or used for case fans.
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Graphics Card (GPU): High-performance graphics cards often require dedicated power connections directly from the SMPS. These are typically 6-pin or 8-pin PCIe power connectors.
In summary, the SMPS is the central power distribution unit within a computer, connecting to the motherboard, CPU, storage devices, optical drives, and graphics card (if present) to provide the necessary power for each component to operate.
