How to Extracting DATA from (.cap) Bios File

BIOS .rar 1.55 MB Shared

Tutorial archive explaining how to extract the data from a BIOS file in .cap format, packed as a 1.55 MB RAR. CAP files are firmware capsules used mainly by ASUS for its update packages, with a header in front of the actual flash image. Removing that header or extracting the body yields a raw image that can be written to the SPI chip with a hardware programmer. Make sure the extracted image size matches the flash chip exactly, and back up the original chip contents before programming any board.

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.

All sources (2)

The same file was posted more than once. If one link is dead, try the next.

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 →