Tested BIOS dump for a Dell laptop marked 5482, on board 17859-1, which the name reports as working correctly. The five-digit-dash numbering is a Wistron pattern used on many Dell boards. The archive is large at 44.3 MB, so it probably holds more than one file, perhaps several images or supporting material, and its contents should be inspected before use. Match the board number on the PCB, dump the original flash first, and confirm the image you program fits the chip exactly.
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 →