Is there a south bridge on the latest notebook motherboard?

Yes On July 1 2023, there is no South North Bridge chip on the motherboard, but only a South Bridge (also called chipset). South bridge chip is an important part of motherboard chipset, which is generally located under CPU slot and near PCI slot on motherboard. This layout is based on the fact that there are many I/O buses connected to it, and being far away from the processor is beneficial to wiring.