BIOS dump for the E40-80 laptop, a Lenovo model, on Compal board LA-B091P revision 3.0, supplied as a 3.93 MB ZIP. A technician uses this to rewrite the SPI BIOS chip when the machine shows no image or hangs early in boot. Compal numbers its boards in the LA-xxxxP format, and the same board may host several models, so check that revision 3.0 is printed on the PCB. Save the original chip contents first and verify the extracted image matches the flash chip size.
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 →