Northbridge is a chip architecture, often referred to as the North-South Bridge chip, that is a long-standing and quite popular motherboard chipset architecture. There are two large chips on the motherboard of the north-south bridge structure, and the north bridge chip near the CPU is mainly responsible for controlling the data exchange between the AGP graphics card, memory and CPU. Near the PCI slot is the Southbridge chip, which is mainly responsible for the data exchange of floppy drives, hard disks, keyboards and additional cards.