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Hello everyone, in this lesson we will talk about the structure of the mainboard

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The structure of the mainboard is generally displayed in the form of a picture

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We generally call it the mainboard architecture diagram

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We can understand it as the organizational chart of the company

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It can help us understand the affiliation of each component of the mainboard,

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so as to help us better judge the fault during maintenance

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Let's first look at the overview diagram of the Intel and AMD architectures

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The Intel architecture is mainly composed of CPU, PCH and IO as the core

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The CPU is the core brain of the entire mainboard

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It mainly controls some high-speed devices, such as memory and graphics cards

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It also controls the PCH

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PCH controls some relatively low-speed devices,

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such as BIOS, sound card, network card and USB device

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PCH also controls the IO

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IO controls some external devices, such as fans, mice, keyboards, etc.

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AMD Ryzen architecture is very different from Intel architecture

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Its core component is the APU

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APU is AMD's CPU

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It controls most of the devices on the mainboard,

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such as graphics card, memory, IO, BIOS, sound card, network card, etc.

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But because the APU has not enough pins, it can't control all the devices

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So the APU will control one more component, the HUB, similar to the south bridge

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HUB is mainly used to expand the interface and control some relatively low-speed devices,

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such as USB, SATA bus and part of PCIE bus

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In fact, for the AMD Ryzen architecture, without this HUB, it can work normally

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In the next course, let's take a look at the Intel architecture and the AMD Ryzen architecture in detail.