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MCH – Memory Controller Hub

Vangie Beal
Last Updated May 24, 2021 7:48 am

Short for Memory Controller Hub, MCH is an implementation of the Accelerated Hub Architecture (ACHA), this is the faster end of the ACHA, often referred to as the Northbridge, a reference to the older three-tier chipset design. The MCH provides the system bus interface, memory controller, AGP interface, and hub interface for I/O.

Intel Hub Architecture

[Image Source: INSIDE THE PC, Nigel S. Smith, University of Cambridge Computing Service]