wikiSystem Management BIOS
The System Management BIOS (SMBIOS) Reference Specification describes how mainboards and system manufacturers provide management information of their products in a standardized format. The SMBIOS specification was output by the Distributed Management Task Force (DMTF) and is continuously expanded. The information provided in accordance with the SMBIOS specification can be read under Linux with dmidecode.
Provided information
In the SMBIOS specification 3.7.0 dated 21.07.2023[1] the following Structure Definitions are described:
| type | description (english) | required field |
|---|---|---|
| 0 | BIOS Information | ja |
| 1 | System Information | ja |
| 2 | Baseboard (or Module) Information | |
| 3 | System Enclosure or Chassis | ja |
| 4 | Processor Information | ja |
| 5 | Memory Controller Information (Obsolete) | |
| 6 | Memory Module Information (Obsolete) | |
| 7 | Cache Information | ja |
| 8 | Port Connector Information | |
| 9 | System Slots | ja |
| 10 | On Board Devices Information (Obsolete) | |
| 11 | OEM Strings | |
| 12 | System Configuration Options | |
| 13 | BIOS Language Information | |
| 14 | Group Associations | |
| 15 | System Event Log | |
| 16 | Physical Memory Array | ja |
| 17 | Memory Device | ja |
| 18 | 32-Bit Memory Error Information | |
| 19 | Memory Array Mapped Address | ja |
| 20 | Memory Device Mapped Address | |
| 21 | Built-in Pointing Device | |
| 22 | Portable Battery | |
| 23 | System Reset | |
| 24 | Hardware Security | |
| 25 | System Power Controls | |
| 26 | Voltage Probe | |
| 27 | Cooling Device | |
| 28 | Temperature Probe | |
| 29 | Electrical Current Probe | |
| 30 | Out-of-Band Remote Access | |
| 31 | Boot Integrity Services (BIS) Entry Point | |
| 32 | System Boot Information | ja |
| 33 | 64-Bit Memory Error Information | |
| 34 | Management Device | |
| 35 | Management Device Component | |
| 36 | Management Device Threshold Data | |
| 37 | Memory Channel | |
| 38 | IPMI Device Information | |
| 39 | System Power Supply | |
| 40 | Additional Information | |
| 41 | Onboard Devices Extended Information | |
| 42 | Management Controller Host Interface | |
| 43 | TPM Device | |
| 44 | Processor Additional Information | |
| 45 | Firmware Inventory Information | |
| 46 | String Property | |
| 126 | Inactive | |
| 127 | End-of-Table | |
| 128-255 | Available for system- and OEM- specific information |
References
- ↑ System Management BIOS (dmtf.org)
More information
- System Management BIOS (en.wikipedia.org)
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Author: Werner Fischer Werner Fischer, working in the Knowledge Transfer team at Thomas-Krenn, completed his studies of Computer and Media Security at FH Hagenberg in Austria. He is a regular speaker at many conferences like LinuxTag, OSMC, OSDC, LinuxCon, and author for various IT magazines. In his spare time he enjoys playing the piano and training for a good result at the annual Linz marathon relay.
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Translator: Alina Ranzinger Alina has been working at Thomas-Krenn.AG since 2024. After her training as multilingual business assistant, she got her job as assistant of the Product Management and is responsible for the translation of texts and for the organisation of the department.
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