Kenneth: Created page with "== Platform Controller Hub (PCH) == Chipset PCH - A Platform Controller Hub (PCH) is a microchip on a motherboard that manages data flow and communication between the CPU and attached peripherals. It essentially acts as the traffic controller for your computer's input/output (I/O) functions. ref: https://en.wikipedia.org/wiki/Platform_Controller_Hub === What the PCH Does === * I/O Management: Handles communication for your USB ports, audio, SATA (hard driv..."

2026-05-15T17:56:05Z

Created page with "== Platform Controller Hub (PCH) == Chipset PCH - A Platform Controller Hub (PCH) is a microchip on a motherboard that manages data flow and communication between the CPU and attached peripherals. It essentially acts as the traffic controller for your computer's input/output (I/O) functions. ref: <ref>https://en.wikipedia.org/wiki/Platform_Controller_Hub</ref> === What the PCH Does === * I/O Management: Handles communication for your USB ports, audio, SATA (hard driv..."

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== Platform Controller Hub (PCH) ==

Chipset PCH -

A Platform Controller Hub (PCH) is a microchip on a motherboard that manages data flow and communication between the CPU and attached peripherals. It essentially acts as the traffic controller for your computer's input/output (I/O) functions.

ref: <ref>https://en.wikipedia.org/wiki/Platform_Controller_Hub</ref>

=== What the PCH Does ===
* I/O Management: Handles communication for your USB ports, audio, SATA (hard drives), and network cards.
* PCIe Lanes: Provides extra lanes for expansion cards and certain NVMe SSDs that don't plug directly into the CPU.
* Power Management: Helps coordinate the energy requirements and sleep states for different hardware components.

=== PCH vs. Motherboard Chipset ===

In modern computing, the terms "PCH" and "chipset" are mostly synonymous. Historically, motherboards had two main chips: a Northbridge and a Southbridge. Intel replaced these with the single-chip PCH. The PCH handles all the traditional Southbridge duties, while Northbridge functions (like memory controllers) are now built directly into the CPU itself.

PCH - Revision history