Run MMTool.exe as Administrator (right-click > Run as administrator). Some BIOS operations require low-level access.
: It is a legacy "Module Management Tool" from AMI used to add, delete, or extract modules and Option ROMs within an Aptio or standard AMI ROM image. mmtool+326zip
Using MMTool is inherently risky. Because it modifies the "brain" of the motherboard, an incorrect modification—such as inserting a module that is too large for the allocated space or corrupting the firmware’s integrity—can result in a . In such cases, the computer will fail to POST (Power-On Self-Test), requiring a physical CMOS chip programmer to fix. Run MMTool
Browse for your new component file and hit the corresponding button (e.g., Replace or Insert ). Save: Use Save ROM as... to create your modified file. Safety and Compatibility Note [Guide] AMI (non-UEFI) BIOS Modding - Win-Raid Forum Using MMTool is inherently risky
Finding the specific (often searched as mmtool+326zip ) is a common quest for enthusiasts working on older PC hardware. While modern UEFI BIOS versions use different utilities, MMTool 3.26 remains the "gold standard" for modifying legacy AMI (American Megatrends) BIOS files.