What are the functions of the northbridge and the southbridge in a motherboard? - BIOS
What are the functions of the northbridge and the southbridge in a motherboard?
- The Northbridge chip is used to connect all the major components of the motherboard with each other. It is used to connect the CPU to the memory, cache, PCI express bus etc.
- In order to communicate the chips make use of the system bus in this case it makes use of the Front Side Bus or the FSB.
- The Southbridge chip is used to handle all the communication between various input and output devices. Both the northbridge and the southbridge together form a chipset for a motherboard. The southbridge also makes use of the bus as a communication channel.