An 8.00 MB raw BIOS dump, third copy in the 450 G1 GRAFX series, presumably for boards fitted with separate graphics; brand, GPU and board revision are not part of the name. Such images are flashed with an external SPI programmer to revive boards stuck without display or boot. The chip should be 64 Mbit. Before writing, read the original firmware twice and compare the reads, check the PCB markings, and verify the programmed chip after 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 @biosfilebins. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →