The SMBIOS data (board‑id, product‑name, serial, etc.) tells macOS what Mac model it is running on. The EFI maker will choose an appropriate model (e.g., MacPro7,1 for HEDT systems, iMac19,1 for Coffee Lake desktops). Changing the SMBIOS can improve or break iMessage/FaceTime, power management, and GPU acceleration.
The SMBIOS data (board‑id, product‑name, serial, etc.) tells macOS what Mac model it is running on. The EFI maker will choose an appropriate model (e.g., MacPro7,1 for HEDT systems, iMac19,1 for Coffee Lake desktops). Changing the SMBIOS can improve or break iMessage/FaceTime, power management, and GPU acceleration.