System BIOS for a Lenovo ThinkPad Edge on Quanta board DAPS1AMB8C0, packed in a RAR archive with a 2MB image. Quanta's DA board codes identify the platform and the last characters show the revision, so compare the code on the PCB. The exact Edge model is not named, so check the board rather than the case label. Write the image with an SPI programmer such as CH341A only after backing up the existing chip, and confirm the chip is 2MB so the file fits.
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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →