BIOS archive for an ASUS board identified only as CS-B, packed as a 13.8 MB RAR file and labelled as fully working. The name gives no further revision, chipset or chip details, so identification relies on matching the model text printed on the motherboard itself. Archives of this size may contain a full SPI image or several files, so inspect the contents before use. Flash it with an external programmer after reading and saving the original chip, and verify that the image size equals the capacity of the installed flash chip.
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 →