BIOS for the Panasonic Toughbook CF-AX2, with what appears to be the board part number DFUP2161ZD (1)HF in the name, archived as a 5.62 MB RAR. A dump of this kind is used to reflash the SPI chip when the machine does not post, after a corrupted update, or when a replacement board needs working firmware. Read and keep the original chip contents before programming, because serial and configuration data may live in the image. Compare the chip capacity with the file 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 →