BIOS firmware for the IBM ThinkPad T61, marked INTEL, which most likely distinguishes the Intel integrated graphics variant from the discrete one, packed in a 1.84 MB RAR archive. No board number or BIOS version is given, so open the archive and verify what is inside. ThinkPad firmware is often paired with separate EC data and may hold machine-specific serial data, so a full read of the original chip is essential before any write. Use an SPI programmer and confirm the board graphics configuration matches before flashing.
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 →