A motherboard is the most complicated component in a computer. When you put together a computer from parts, generally you start with deciding which processor and motherboard you will use. Everything else follows these two decisions. Take a look at the details of , which shows a microATX motherboard by Intel that can hold an Intel Core i7, Core i5, or Core i3 processor in the LGA1155 processor socket. When selecting a motherboard, generally you’d need to pay attention to the form factor, processor socket, chipset, buses and number of bus slots, and other connectors, slots, and ports. In this part of the chapter, we’ll look at the details of each of these features so that you can read a technical motherboard ad with the knowledge of a pro and know how to select the right motherboard when replacing an existing one or when building a new system.