The quickest built-in method is to press Windows + R, run msinfo32, and read BaseBoard Manufacturer, BaseBoard Product, and BaseBoard Version under System Summary. PowerShell can query the same SMBIOS data, while SIW adds a richer motherboard inventory and hardware relationships.
msinfo32, and press Enter.System Information reads the inventory that Windows receives from the firmware. It is a good first answer for a physical PC, but it does not repair missing or generic firmware strings.
Open PowerShell and run:
Get-CimInstance -ClassName Win32_BaseBoard |
Select-Object Manufacturer, Product, Version, SerialNumber
To compare the board with the computer's overall model, run:
Get-CimInstance -ClassName Win32_ComputerSystem |
Select-Object Manufacturer, Model
Win32_BaseBoard describes the baseboard record; Win32_ComputerSystem describes the complete system. On a laptop, the system model is often more useful for support than the board code.
Motherboard names normally come from SMBIOS or DMI tables supplied by the firmware. A manufacturer may leave a field blank, use a generic value, reuse a board family name, or expose a system-board identifier that is not the retail product name.
Use the model printed on the chassis, the vendor support page, or the manufacturer's service tag to confirm an ambiguous result. Do not choose firmware or hardware solely from a generic string.