Basic & Major Parts of Motherboard and its Functions Parts of Motherboard Parts of Motherboard. What is Motherboard? Motherboard is a PCB (Printed Circuit Board) with different hardware components on it. It’s the electric conductor of the computer, responsible of distributing current and communication on each hardware components and chipset (CPU, RAM & etc.). Motherboard is also often called as Planar board, MOBO, MB, Mainboard, System Board, Logic Board, Base Board and Backplane Board. Basic Motherboard Components Processor Socket North Bridge South Bridge RAM/Memory Slot x2 24 pin ATX Power Connector I/O ( Input Output) PCI express x16 PCI SATA Connector CMOS Backup Battery These are the basic parts of the Motherboard. Later we will discuss each functions. Knowing the basic parts of the Motherboard is important for all computer users. It may not be necessary but it will give you a big advantage. For now, at least you know what a processor ...