BIOS dump for a Lenovo ThinkStation D20 class workstation, board code Ibiza, version 1.5, which the name reports as working and fully tested, packed in a RAR of about 951 KB. A clean image like this is used to recover a workstation that will not post after a bad update, by writing it to the board's flash chip with an external programmer. Read and keep the existing contents first, and compare the image size with the chip capacity, since a mismatched file 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 →