Backup video BIOS for an AMD Radeon HD 7950 reference card, the bak suffix indicating a saved original. The RAR archive is 85.4 KB. Graphics ROM files are written to the card's small SPI EEPROM using ATIFlash or a hardware programmer when the card fails to start after a bad update. Confirm the PCB design and memory size are the same as the source card, and read the current ROM before overwriting so the change can be reversed.
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 →