Firmware archive with an unclear name, which reads THERMAL 8-M2L4.5 and states no brand, board number or revision. It is a 4.66 MB ZIP listed as BIOS or firmware. The name cannot identify the target device, so unpack it and inspect the image strings, size and any included notes before deciding where it belongs. If you flash it to an SPI chip, first confirm that it matches your board. Make a full backup of the original chip and check that the image size matches the flash capacity.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →