BIOS archive of about 4.09 MB in RAR format, named only 8740w with the tag new. The name points to an HP EliteBook 8740w mobile workstation but states no board number, revision or version, so treat that identification with care. Such files are used to reprogram the BIOS flash chip when a laptop is dead, stuck on a blank screen or bricked by a failed update. Open the archive to see whether it holds a raw dump or a vendor update package, compare the board marking on the PCB, back up the existing chip contents, and check the image size.
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 →