5.20 | Dmiedit

DMIEdit (Desktop Management Interface Edit) version 5.20 is a specialized tool developed by American Megatrends (AMI) used to modify SMBIOS/DMI data on motherboards utilizing Aptio V firmware

AMI DMIEdit 5.20 is a utility used to view and modify Desktop Management Interface (DMI) and System Management BIOS (SMBIOS) data within American Megatrends (AMI) Aptio firmware. It allows users to update system-level strings such as serial numbers, asset tags, and model names directly from a Windows or EFI environment. XMG Downloads Core Functionality dmiedit 5.20

System Requirements

Important Notes

  • Risk: Incorrect changes can brick your motherboard or cause OS activation issues.
  • Write protection: Many modern BIOSes lock DMI regions; the change may not stick without special preparation or an unlocked BIOS.
  • Alternatives: For newer systems, tools like dmidecode (Linux), wmic (Windows), or AMI’s AFUWIN / AMIDEWIN are more common.

Notable bugs/quirks

Has anyone used the newer Aptio V version, or do you still prefer 5.20 for older builds? Let’s discuss! 👇 DMIEdit (Desktop Management Interface Edit) version 5

dmiedit 5.20 -t 1 -i 1 -f product-name "Custom-PC-2024"
  • State Memory: The editor now remembers your last 5 used palettes and icon directories per project.
  • Onion Skinning for Animation: Added 50% and 25% opacity ghosting for previous/next frames in the animation timeline. (Toggle via View > Onion Skin).
  • Palette Import from PNG: Right-click the palette window to import a color palette directly from any .png file (auto-extracts indexed colors).
  • Hotkey Customization (Beta): Redefine common shortcuts (Cut, Copy, Paste, Flip) under Tools > Options.