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  • Topic: Motherboard, PCI Express, LGA 775
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  • Published : November 20, 2011
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How Motherboards Work

• • • • • • • •

Introduction To Motherboards Form Factor Sockets and CPUs Chipsets Bus Speed Memory Motherboard Power Connector. Slots And Ports On Motherboard. 2



The motherboard is the main printed circuit board and contains the buses, or electrical pathways, found in a computer. These buses allow data to travel between the various components that comprise a computer. A motherboard is also known as the system board, the backplane, or the main board. 3


The motherboard accommodates the central processing unit (CPU), RAM, expansion slots, heat sink/fan assembly, BIOS chip, chip set, and the embedded wires that interconnect the motherboard components. Sockets, internal and external connectors, and various ports are also placed on the motherboard.   4

Specifications Form Factor: Micro ATX, uATX Processor Socket:  Intel Processor Interface:  LGA1156 Processors Supported: ●

  Intel Core i7  Intel Core i5



•Form Factor : ATX . • Processor Socket:  Intel •Processor interface : socket 775 •  Processors Supported:  ●

Intel Pentium D  Intel Pentium EE  Intel Core 2 Duo   Intel Core 2 Extreme   Intel Core 2 Quad  Intel Pentium Dual Core 6

  Intel Penryn

Motherboards Form Factor

The form factor of motherboards pertains to the size and shape of the board. It also describes the physical layout of the different components and devices on the motherboard. The form factor affects where individual components go and the shape of the computer's case. There are several specific form factors that most PC motherboards use so that they can all fit in standard cases. 7

Various Form Factors Exist For Motherboards
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AT – Advanced Technology ATX – Advanced Technology Extended Mini-ATX – Smaller footprint of ATX Micro-ATX – Smaller footprint of ATX LPX – Low-profile Extended NLX – New Low-profile Extended BTX – Balanced Technology Extended 8

Motherboards Form Factor
The form factor is just one of the many standards that apply to motherboards. Some of the other standards include:  The socket for the microprocessor determines what kind of Central Processing Unit (CPU) the motherboard uses.  The chipset is part of the motherboard's logic system and is usually made of two parts -- the northbridge and the southbridge. These two "bridges" connect the CPU to other parts of the computer.  The Basic Input/Output System (BIOS) chip controls the most basic functions of the computer and performs a self-test every time you turn it on. Some systems feature dual BIOS, which provides a backup in case one fails or in case of error during updating.  The real time clock chip is a battery-operated chip that maintains basic settings and the system time. 9

Sockets and CPUs

Socket 775

LGA 1156 Socket


Sockets and CPUs

The central processing unit (CPU) is considered the brain of the computer. It is sometimes referred to as the processor. Most calculations take place in the CPU. the CPU is the most important element of a computer system. CPUs come in different form factors, each style requiring a particular slot or socket on the motherboard. Common CPU manufacturers include Intel and AMD


Sockets and CPUs
 

The CPU socket or slot is the connector that interfaces between the motherboard and the processor itself. Most CPU sockets and processors in use today are built around the pin grid array (PGA) architecture, in which the pins on the underside of the processor are inserted into the socket, usually with zero insertion force (ZIF). ZIF refers to the amount of force needed to install a CPU into the motherboard socket or slot. Slot-based processors are cartridge-shaped and fit into a slot that looks similar to an expansion slot. 12

Sockets and CPU's

LGA 1156 Socket...
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