Firmware archive for the C805D laptop with AMD hardware on the Quanta DABY7DMB8C0 mainboard, a 6.18 MB RAR. The name marks the AMD configuration but gives no version or flash chip details. BY7 is the Quanta project code and C the board revision. Technicians use such dumps to rewrite a corrupted BIOS chip with an SPI programmer and revive boards that power on without display. Since variants with different graphics exist, compare the components and PCB number, read the original chip as a backup, and verify the image size matches.
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 →