BIOS binary for the Toshiba Satellite C840 and C845 laptops, tied to board DABY3CMB8E0 revision E. The DA-prefixed number follows the Quanta numbering pattern, so Quanta is the ODM behind this board. The RAR archive is 2.59 MB. It is used to restore a corrupted BIOS chip on a laptop that powers on without display. Check that the board number and revision E printed on the PCB match, back up the existing chip before writing, and confirm the image size fits the flash device.
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 →