BIOS for the ASUS P5LD2 SE desktop motherboard, a small 450 KB rar archive. The name gives no version or chip details, so look inside for the image and check its size. Older desktop boards like this keep the BIOS on a socketed or soldered flash chip that can be rewritten with a programmer after a failed update. Compare the board model printed on the PCB, read and keep the original chip contents, and make sure the image size matches the chip capacity before writing.
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 →