How to Extracting DATA from (.cap) Bios File

BIOS .rar 1.55 MB Shared

RAR archive of 1.55 MB that, by its title, holds a guide on extracting data from a .cap BIOS file. CAP files are capsule images used by ASUS and other vendors for UEFI updates; they carry a header in front of the raw firmware that must be removed before the image can be written to an SPI chip with a programmer. Tutorials like this typically cover UEFITool or a hex editor to strip the header. Compare the resulting size with the flash chip capacity before writing, and keep a backup of the original chip.

The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.

How to open a .rar file

Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →