The function of each module on the computer motherboard

1. CPU module

The CPU module includes the CPU chip, CPU socket and fan. It receives and stores the user program and data according to the system program, collects the state or data sent by the field input device by scanning, and stores them in the specified registers.

At the same time, it diagnoses the operating status of the power supply and the internal circuitry of the PLC and syntax errors during programming, etc. After entering into operation, it reads the instructions one by one from the user program memory, analyzes them and then generates the corresponding control signals according to the tasks stipulated in the instructions, and goes to command the control circuits.

2, memory module

Memory module includes memory slots and memory sticks. It is a bridge to communicate with the CPU, and all the software in the computer is running in the memory stick. Memory is mainly used for temporary storage of data, such as data called in the computer, you need to read from the hard disk, sent to the memory, and then the memory is then sent to the CPU work tasks.

3, Chipset (Chipset)

The chipset is called the control chipset (Chipset), by one or more pieces of ultra-large-scale integrated circuit chips. The motherboard chipset determines almost all of the motherboard's functions, including the type of CPU, the motherboard's system bus frequency, the type, capacity and performance of the memory, graphics card slot specifications are determined by the chipset in the Northbridge chip;

And the type and number of expansion slots, the type and number of expansion interfaces (such as USB2.0/1.1, IEEE1394, serial, parallel, notebook, VGA output interface), etc., are the main features of the motherboard. VGA output interface), etc., are determined by the chipset's south bridge.

4, bus expansion slot

Can be inserted into a variety of purposes of the functionality of the board, such as graphics cards, sound cards, network cards, video adapter cards. According to different standards, it can be used to insert various boards, such as graphics cards, sound cards, MODEM cards and network cards.

The main board expansion slots used are PCI slots and AGP slots, etc. An ISA bus slot was widely used before this, but has now been eliminated.PCI slots are used for plugging in PCI bus cards, usually white slots, and depending on the motherboard, there are usually 3 to 5 PCI slots.

Expanded Information:

The role of each slot interface of a computer's motherboard:

1, CPU slot:

As the name suggests, the place where the CPU is placed, this slot above the pins are easily damaged, placed when you must be placed gently and do not have friction with the pins, otherwise it will break the pin or pin bending. AMD's slot is a small round hole without pins, pins in the CPU above, not so easy to injury.

2, memory stick slot:

Place the memory stick place, here the total **** there are four, expand the position is very enough, these four are not necessarily all inserted, as long as the insertion of a will be able to run, the later if you feel that the memory is not enough to use can be added to the one.

3, motherboard power supply slot:

Power supply the widest set of sockets and here, his role to the power supply, the voltage of each small hole is different (in addition to the black line, the ground) the maximum voltage of not more than 12V.

4, CPU power supply slot:

4, CPU power supply slot:

This is the first time that the CPU power supply slot is used.