A 24.6 MB RAR archive with firmware whose name only reads 840 g10, most likely referring to an HP EliteBook 840 G10, though the name gives no board number, revision or chip details. Because the label is so sparse, unpack the archive and inspect file names and sizes before use. Read and back up the existing SPI flash with a programmer first, compare the board number printed on the motherboard against any notes inside, and confirm each image size matches the target flash chip.
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 @jdbios_world. 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 →