Press Windows + R, type `msinfo32`, and check “BaseBoard Manufacturer,” “BaseBoard Product,” and “BaseBoard Version”
Open Command Prompt and run `wmic baseboard get product,manufacturer,version,serialnumber`
Open PowerShell and run `Get-CimInstance Win32_BaseBoard | Format-List Product,Manufacturer,Version,SerialNumber`
Check the motherboard model printed on the board itself inside the PC case
Look in your PC or motherboard manual, receipt, or product listing
Check the BIOS/UEFI setup screen for motherboard information
Use a system information tool like CPU-Z, Speccy, or HWiNFO
On Linux, run `sudo dmidecode -t baseboard`
On macOS, check the model of the Mac instead of a separate motherboard, since it is not user-replaceable