Firmware archive in RAR format, about 1.65 MB, for laptops listed as L600 and L645 with board DATE2DMB8E0, also carrying the tokens l600-01B and 10b. The DA-prefixed number follows Quanta's pattern, so the board was made by Quanta. The brand is not named, so rely on the PCB number rather than the model. Such dumps are written to the BIOS flash chip with a programmer; save the original first and confirm the image size suits the chip before writing.
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 →