BIOS firmware for an ASUS X55VD laptop motherboard at revision 2.1, provided as a 3.60 MB RAR archive. Only the model and revision appear in the name, with no version or chip details. ASUS marks the board model and revision on the PCB, and that marking should match 2.1 before the image is written. It is used to recover a laptop that fails to POST after corruption, flashing the SPI chip with an external programmer. Read and keep the original contents first and confirm the extracted image matches the chip capacity.
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 →