1. The chipset controls the system and its capabilities. All components communicate with the processor through the chipset - it is the hub of all data transfer. The chipset uses the DMA controller and the bus controller to organize the steady flow of data that it controls. The chipset is a series of chips attached directly to the motherboard, and is usually second in size only to the processor. Chipsets are integrated (soldered onto the motherboard) and are not upgradeable without a new motherboard.