BIOS for an AMD build of the Lenovo NM-C771 board, revision 1.0, labelled fully working and carrying firmware version R1AET37W, in an 8.78 MB RAR. NM-C771 is an LCFC mainboard number, the ODM behind many Lenovo laptops, and an Intel board image will not suit an AMD board. Technicians program such a dump onto the SPI chip to restore a board after corruption. Save the original contents first, and make sure the file length matches the flash capacity before 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 @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 →