BIOS firmware archive labelled for the IBM/Lenovo ThinkCentre M70z all-in-one desktop, the name using the spelling thinkcenter. No board number, BIOS version or chip type is stated, so unpack the RAR and examine the image or images inside. At 3.79 MB compressed it may hold a full SPI dump including the ME region. Desktop boards like this are reprogrammed with a programmer clip on the SOIC flash chip. Save a backup of the original contents, since it holds serial and system data, and confirm the image size fits 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 →