Firmware dump labelled IBM T61, 4.00 MB, supplied without a file extension; the size points to a raw 32 Mbit SPI flash image. The name gives only the ThinkPad T61 model and no board number, chipset variant or version, so integrated versus discrete graphics boards must be distinguished by the technician. Raw images like this are programmed directly to the BIOS chip with a hardware programmer. Read and save the existing chip first, since it contains the machine serial and UUID, and check the board 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 @bios_laptop. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →