BIOS firmware for the Lenovo E31-70, stored as a 4.46 MB 7z archive. The name gives only the model, with no board number, revision, chip type or version, so inspect the unpacked image and compare its size with the flash chip before use. Dumps like this are normally written to the SPI BIOS chip with an external programmer to recover boards with corrupted firmware or no POST. Read and keep a backup of the original chip, and check the mainboard markings to confirm compatibility.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →