BIOS firmware archive for a Sony VAIO laptop built on the Quanta board DA0HK8MB6E0, revision E. The PM suffix in the name is not explained, so treat its meaning as unconfirmed. The DA0 prefix is the typical Quanta motherboard numbering, so Quanta made this board even though it carries the Sony brand. Unpack the RAR, compare the image size with the SPI flash chip on the PCB, and save a full backup of the original chip before writing anything with a programmer such as a CH341A or RT809H.
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 →