Linux uses the Dmidecode command to view BIOS and SMBIOS, DMI, and other information

To do the low-level testing of the Linux system, it is sometimes necessary to focus on BIOS information (including basic information, detected CPU and memory, etc.). In addition to entering the BIOS at power-on startup, you can view BIOS information directly in a Linux system, typically using the Dmidecode command (and the Biosdecode command), and in Windows you can use "Dmiscope" Software (charging software, I have not used) to view and modify the BIOS.

The SMBIOS (System Management BIOS) is the uniform specification that the motherboard or system manufacturer should follow in order to display product management information in a standard format.
DMI (Desktop Management Interface, DMI) is a management system that helps collect information about computer systems, and the collection of DMI information must be carried out in strict compliance with SMBIOS specifications.
Smbios and DMI are open technical standards drafted by the industry Steering agency desktop Management Task Force (DMTF), but DMTF announces that the DMI life cycle ended in 2005.

When you use the Dmidecode command, all types of information are printed without any arguments, and "-t type_num" or "-t keywords" can view a type of information.

Dmidecode
Dmidecode-t 1
DMIDECODE-T system


The following structure types are defined in the SMBIOS specification 2.7.1:
Type Description
0 BIOS Information
1 System Information
2 baseboard (or Module) information
3 System Enclosure or chassis
4 Processor Information
5 Memory Controller Information (Obsolete)
6 Memory Module Information (Obsolete)
7 Cache Information
8 Port Connector Information
9 System Slots
Ten on Board Devices information
One OEM Strings
System Configuration Options
BIOS Language Information
Group Associations
System Event Log
Physical Memory Array
Memory Device
32-bit Memory Error Information
Memory Array Mapped Address
Memory Device Mapped Address
Built-in pointing Device
Portable Battery
System Reset
Hardware security
System Power Controls
Num Voltage Probe
Cooling Device
Temperature Probe
Electrical current Probe
Out-of-band Remote Access
Boot Integrity Services (BIS) Entry Point
System Boot Information
64-bit Memory Error Information
Management Device
Management Device Component
Management Device Threshold Data
Panax Notoginseng Memory Channel
IPMI Device Information
System Power Supply
Additional Information
Onboard Devices Extended Information
Management Controller Host Interface
126 Inactive
127 end-of-table
128-255 Available for System-and oem-specific information