However, the chipset on the motherboard is the most important part of the board itself as it defines almost everything about the system. The chipset controls the system and its capabilities. It is the hub of all data transfer. Chip sets are integrated, meaning they are soldered onto the board and are not upgradable without buying a whole new motherboard. All data must go through the chipset.
All components talk to the CPU through the chipset.
To make order out of all this data, the chipset makes use of the DMA controller and the bus controller. More on this here . The chipset maker needs to keep up with BIOS and memory makers, since all of these parts work together and the chipset is the hub of it all. Chipsets replace the large number of chips that used to crowd a motherboard. Chipsets now take longer for to manufacture than old ones used to.