AMI Capsule Format - ISpillMyDrink/UEFI-Repair-Guide GitHub Wiki

Images in AMI's capsule format are most commonly (but not necessarily) found with a .CAP file extension and are the most common capsule format used on desktop motherboards and some laptop brands. They are easiest extracted by opening them in UEFITool, right-clicking on the AMI Aptio capsule in the Structure view, selecting Extract Body..., and saving the image.

Capsules do not necessarily contain the entire flash image, it might be necessary to stitch the extracted image together with the backup image taken from the machine.