Without kernel-level or SMM (System Management Mode) access, the SMBIOS data is read-only via standard GetSystemFirmwareTable APIs.

The Acer DMI Tool is distributed as a single executable, DMI_V3.0x.exe , or as a DOS-based binary for legacy systems. It comprises:

| Tool | Vendor | Scope | Privilege Required | Write Method | |------|--------|-------|--------------------|---------------| | | Acer | Acer/Gateway only | Ring 0 / DOS | SPI direct | | DMIEdit | Generic | Any SMBIOS | Kernel driver | SMBIOS table relocation | | AMIDEWIN | AMI | AMI BIOS only | Ring 3 (limited) | AMI NVRAM interface | | dmidecode (Linux) | OSS | Read-only | Root (for raw) | /dev/mem |