BIOS archive identified only as HP 455 AMD, a 2.31 MB RAR. The name points to an AMD-based HP 455 series notebook but gives no generation, board number or firmware version, so inspect the contents and compare them against your machine. Images like this are flashed to the SPI chip with an external programmer when the original firmware is damaged. Before writing, dump and store the existing chip contents, and verify the file size equals the flash chip capacity, since a mismatched image will not fit.
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 →