BIOS archive for Quanta board DAG7GDMB8C0 revision C, stated in the name as fully tested. The brand field says Apple, but the name gives no model, so confirm the laptop identity from the board itself. Quanta uses the DAxxxxxxxxx pattern and builds for several brands. The 8.68 MB rar should be extracted and the image checked against the flash chip size before programming. Read and save the original SPI contents first, then write with a programmer and verify, as the original holds board-specific data.
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 @BiosSchematicWorld. 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 →