BIOS binary for a 450 G1 tagged GRAFX, 8.00 MB in .bin format. GRAFX appears to denote the graphics variant of the board, but the name does not state the brand, GPU or board number. It is a raw SPI image for a 64 Mbit chip, loadable in any common programmer utility. Make sure the board on the bench is the version with dedicated graphics, read and keep the original chip before erasing, and compare the written data against the file to confirm a clean flash.
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 →