Get-WmiObject -Class Win32_BIOS | Select-Object SMBIOSMajorVersion, SMBIOSMinorVersion For 2.6, this returns Major: 2 and Minor: 6 . On FreeBSD:
SMBIOS 2.6 present. You can further view the top features your system supports by dumping all data: smbios version 26 top
To get the actual SMBIOS version: