Video BIOS for the Sapphire Radeon X1800 CrossFire Edition PCI-E master card with 512MB memory, supplied as RAR. The number 6001400 appears to describe the clock settings stored in the image. CrossFire master boards carry extra compositing logic, so this ROM should only go onto that specific card, not a standard X1800. Use ATIFlash or an SPI programmer to restore a corrupted chip, and read out and keep the original firmware beforehand in case the replacement does not behave as expected.
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 →