BIOS set for the Toshiba Tecra A50 with board code FAWGSY5, containing images for both 8MB and 16MB flash chips in a rar archive. The two versions exist because the board can be fitted with different chip sizes, so read the marking on your SPI chip and pick the matching file. An image whose size does not match the chip will not program correctly. Verify the board code on the PCB, save the original chip contents with your programmer before writing, and keep that backup for restoring.
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 →