BIOS archive for the Lenovo S40-40 all-in-one, 3.83 MB as a RAR, with the name referencing a G3250 processor and the prefix mac, which may mean the dump keeps a MAC address. No motherboard number is given, so confirm your board against the S40-40 model before using it. Write the image to the SPI chip with an external programmer to repair a board that fails to boot. Save the original chip first so you keep its network and system data, and make sure the image size matches the flash capacity.
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.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 4 Oct 2020 | Open file on RM Schematics |
| @ITHINKHS | 8 Oct 2020 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
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 →