BIOS firmware for the Lenovo ThinkCentre M8280T desktop, named with the IBM-Lenovo prefix and packed as a RAR of about 1.79 MB. The name gives no board number or BIOS version, so examine the archive and the motherboard markings before use. A dump like this is used to recover a desktop that no longer posts after a failed update, by writing it to the BIOS flash chip with a programmer. Read and save the original chip first, as it may contain system-specific data, and confirm the image size matches the chip.
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 →