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Northbridge
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Northbridge

What are the North and South Bridges in Motherboards?

Overview of Chipsets

  • The North Bridge, also known as "puente norte" or "North Beach," is one of two main chips in the logical chipset of a motherboard, with the other being the South Bridge ("puente sur").
  • The term "North Bridge" refers to its position at the top of ATX format motherboards, controlling communication between key components like CPU, RAM, and PCI Express.

Functionality and Compatibility

  • The North Bridge manages data flow between the CPU and RAM as well as graphics processing units (GPUs), while typically only supporting one or two types of memory.
  • Specific chipsets can support different types of RAM; for instance, Intel's 845 chipset works with Pentium 4 and Celeron processors using either SDRAM or DDR2. In contrast, Intel's 875 chipset supports higher clock speeds with DDR RAM.

Impact on System Performance