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2017

-:Motherboard:-

What is Motherboard?

Hardware Studies A motherboard (sometimes alternatively known as the mainboard, system board, baseboard, planar board or logic board,[1] or colloquially, a mobo) is the main printed circuit board (PCB) found in general purpose microcomputers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system, such as the central processing unit (CPU) and memory, and provides connectors for other peripherals. Unlike a backplane, a motherboard usually contains significant sub-systems such as the central processor, the chipset's input/output and memory controllers, interface connectors, and other components integrated for general purpose use.

Motherboard specifically refers to a PCB with expansion capability and as the name suggests, this board is often referred to as the "mother" of all components attached to it, which often include peripherals, interface cards, and daughtercards: sound cards, video cards, network cards, hard drives, or other forms of persistent storage; TV tuner cards, cards providing extra USB or FireWire slots and a variety of other custom components.

Similarly, the term mainboard is applied to devices with a single board and no additional expansions or capability, such as controlling boards in laser printers, televisions, washing machines and other embedded systems with limited expansion abilities.

Motherboard Layout:


A. Front panel audio connector K. Processor fan connector U. Front panel connector
B. Audio codec L. Chassis intrusion connector V. 4 Mbit Firmware Hub (FWH)
C. PCI Express x16 add-in card connector M. Legacy I/O controller W. IXP 450 Southbridge
D. Ethernet device N. Main power connector X. Speaker
E. Back panel connectors O. Diskette drive connector Y. Front panel USB connector
F. +12V power connector (ATX12V) P. Parallel ATE IDE connectors [2] Z. BIOS Setup configuration jumper block
G. Rear chassis fan connector Q. Battery AA. PCI Conventional bus add-in card connectors [2]
H. LGA775 processor socket R. Front chassis fan connector AB. Front panel USB connector
I ATI Radeon Xpress 200 Northbridge S. Serial ATA connectors AC. PCI Express x1 bus add-in card connector
J. DIMM Channel A sockets T. Auxiliary front panel power LED connector AD. Auxiliary front panel power LED connector