Working BIOS for a Lenovo board identified as L-ARS760C1, version 1.0, in a 7.50 MB RAR. No laptop model is given, so the board code printed on the PCB is the key reference. Such a dump serves to restore corrupted firmware by writing the SPI flash chip with a programmer like CH341A or RT809. Read and keep the existing chip contents first, match the board code and revision exactly, and verify the image size equals the capacity of the flash chip fitted.
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 →