BIOS firmware for the Dell OptiPlex 755 desktop on a Foxconn-made board marked LS-36, revision A01, sized for a 4MB flash chip. A desktop image like this restores a board whose BIOS is corrupted after a failed update or chip fault, written with an external programmer or by replacing the chip. Before flashing, read the original chip and keep a copy, confirm the board marking and revision match, and verify that the image size equals the 4MB chip capacity so it fits correctly.
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 →