Smbios Version 26 -

System Management BIOS (SMBIOS) version 2.6 is a computing standard released by the Distributed Management Task Force (DMTF) on September 4, 2008. It defines a standard data structure format that allows system firmware (BIOS or UEFI) to pass hardware management information to the operating system without requiring the OS to probe hardware directly. Key Features and Changes in Version 2.6

Version 2.6 introduced several structural updates to better support then-emerging hardware technologies like multi-core processors and specialized server chassis. Processor Information (Type 4): Updated to support a longer structure length ( 2Ah2 cap A h ) compared to previous versions.

Added support for newer CPU enumerations, including specific voltage value definitions instead of just bit-flags.

Improved identification for L1, L2, and L3 caches by including cache information handles directly in the processor structure. System Enclosure or Chassis (Type 3):

Added new chassis types such as Blade and Blade Enclosure to reflect the growth of dense server environments. smbios version 26

Introduced a "Sealed-case PC" enumeration for Net PC-type chassis. New Data Structures:

Additional Information (Type 40): This structure was first added in version 2.6 to provide supplementary details for unspecified enumerated values and interim field updates.

New Probes and Control Structures: Added support for Voltage Probes, Cooling Devices, and Temperature Probes to improve system monitoring. Clarifications and Fixes: Clarified the UUID format for System Information (Type 1).

Corrected structure sizes for Memory Error Information and Portable Battery records. Technical Context System Management BIOS (SMBIOS) Reference Specification System Management BIOS (SMBIOS) version 2

To provide SMBIOS support for version 2.6 (specification 2.6, released in 2008), you would typically implement features such as new structure types, extended field lengths, and better 64-bit system support.

Below are the key features you must provide or handle in a software/firmware implementation targeting SMBIOS v2.6:

Perhaps the most practical addition in version 2.6 was the full formalization of the Power Supply (Type 39) structure.

In previous versions, power supply data was often sparse or non-existent. Version 2.6 allowed the BIOS to report detailed stats about the PSU, including: For system administrators managing servers, this was a

For system administrators managing servers, this was a game-changer. It allowed remote monitoring tools to detect a failing power supply before it caused a crash, all without physically walking to the server rack.

By default, ESXi 5.5, 6.0, and 6.5 present SMBIOS 2.6 to VMs unless overridden. You can change this with advanced VMX settings:

SMBIOS.reflectHost = "TRUE"

Or force a specific version:

smbios.epSlotVersion = "2.6"

Contains manufacturer, product name, version, serial number, UUID, and wake-up type. In 2.6, the SKU Number field became more standardized.