Working BIOS set for the Lenovo ThinkCentre M93z all-in-one, machine type 10AE, packed in a 6.92 MB RAR archive. The name indicates images for both a 4 MB and an 8 MB flash chip, which suggests the firmware is split across two SPI chips on the board. Technicians program them with an external programmer when the system will not post after a failed update. Read and keep the original contents of each chip first, and write each image only to the chip whose capacity matches it.
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 →