Small 140 KB rar labelled PT10F UMA revision 2.1, where UMA means the integrated-graphics version of the board without a discrete GPU. At this size the archive probably contains an EC firmware or a partial image rather than a full BIOS, so inspect it before writing. PT10-series codes appear on Inventec laptop projects, though no brand is stated. Check that your board is the UMA variant and revision 2.1, read the target chip with a programmer and keep a backup before flashing.
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 @afsbiosfree. 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 →