Lenovo BIOS archive for the IH61M motherboard, revision 4.2, a desktop board whose name points to an Intel H61 chipset. The revision printed on the board should match 4.2, because firmware for other revisions of the same model can differ. Write the image to the SPI flash chip with a hardware programmer when the PC fails to POST. Read and save the original chip first. Also compare the image size with the chip capacity, since a mismatched dump will not fit.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →