1

00:00:00,700 --> 00:00:06,833

Hello everyone, in this lesson we will take a look at the architecture diagram of the Gigabyte B550 mainboard

2

00:00:07,266 --> 00:00:10,800

This mainboard is an AMD mainboard

3

00:00:11,466 --> 00:00:18,533

First of all, we find the three core components on the mainboard, CPU, HUB and IO chip

4

00:00:20,100 --> 00:00:22,633

Its IO is here

5

00:00:23,000 --> 00:00:29,700

Let's take a look at the devices connected to these chips from top to bottom and from left to right

6

00:00:30,666 --> 00:00:32,733

First is the CPU

7

00:00:32,766 --> 00:00:38,300

It is connected to one Pcie 16-speed slot and one Pcie 8-speed slot

8

00:00:40,700 --> 00:00:45,800

Next, the CPU is connected to the SPI BIOS through the SPI bus

9

00:00:47,300 --> 00:00:51,000

Mainly used to read program

10

00:00:51,200 --> 00:00:57,866

The CPU is connected to a HUB chip similar to the Intel South Bridge through 4 sets of Pcie buses

11

00:00:58,733 --> 00:01:00,100

Look to the right

12

00:01:00,633 --> 00:01:05,233

The CPU is connected to the sound card chip through the sound card bus

13

00:01:05,866 --> 00:01:08,800

The model of this sound card chip is ALC1220

14

00:01:10,500 --> 00:01:14,466

Above, the CPU is connected to the IO through the LPC bus

15

00:01:14,800 --> 00:01:19,700

At the same time, the CPU is also connected to the TPM chip through the LPC bus

16

00:01:20,733 --> 00:01:23,300

This mainboard has a TPM

17

00:01:24,533 --> 00:01:27,100

Up here is the USB port

18

00:01:28,200 --> 00:01:33,566

Further up, the CPU is connected to the m.2 slot through 4 sets of Pcie cables

19

00:01:34,933 --> 00:01:37,933

This m.2 slot is generally used first

20

00:01:37,966 --> 00:01:42,766

If there is only one hard drive, it should be inserted into the m.2 slot first

21

00:01:44,700 --> 00:01:47,300

Further up are 4 memory slots

22

00:01:47,600 --> 00:01:52,033

These 4 memory slots are in groups of two, and they form a dual-channel

23

00:01:55,400 --> 00:01:58,333

Let's look at the following HUB chip

24

00:02:03,266 --> 00:02:06,766

Here are all USB ports and USB devices

25

00:02:07,600 --> 00:02:11,133

Below here is a SATA bus, which is connected to four SATA ports

26

00:02:11,133 --> 00:02:13,400

Look further up

27

00:02:15,333 --> 00:02:19,066

Here is the Pcie bus and the SATA bus

28

00:02:19,066 --> 00:02:23,100

Together they give the m.2 slot and the SATA interface

29

00:02:25,066 --> 00:02:27,600

Here is a PCIE bus and a SATA bus

30

00:02:27,600 --> 00:02:28,966

It comes to the m.2 slot

31

00:02:30,533 --> 00:02:34,700

Above it is connected to a 4-speed PCIE slot

32

00:02:36,166 --> 00:02:42,066

Then the above is connected to a LAN through the PCIE bus, which should be a network card

33

00:02:42,366 --> 00:02:44,366

Here is another network card

34

00:02:44,533 --> 00:02:46,700

There is a 2.5G network card on it

35

00:02:48,300 --> 00:02:52,066

Further up there is a PCIE1 slot

36

00:02:54,500 --> 00:02:56,966

This is the architecture of the AMD Ryzen mainboard

37

00:02:58,066 --> 00:03:01,900

The biggest difference between it and the Intel architecture is that it does not have a south bridge,

38

00:03:01,900 --> 00:03:03,666

but uses a HUB chip

39

00:03:04,433 --> 00:03:09,800

Although the HUB chip is very similar to Intel's South Bridge, it does not affect the boot

40

00:03:10,266 --> 00:03:12,900

Sometimes it can be turned on if you take it apart.