Main Board S/N; System Bios Version; Dmi Bios Version - Acer 500 System Manual

Main Board S/N

This parameter specifies the system board's serial number.

System BIOS Version

This parameter specifies the version of the BIOS utility.

DMI BIOS Version

This parameter specifies the version of the DMI (Desktop
Management Interface) BIOS version. DMI enables software to collect
information about a computer environment.
BIOS Utility 3-9