Working BIOS for an NEC LZ750 laptop, packed as a 2.50 MB rar archive. The name gives no board number, revision or version, so identify the motherboard from the PCB markings before use. Extract the image and compare its size with the SPI flash chip on the board, as a mismatch means it will not fit. Dump and keep the original chip contents with a programmer first, since they can hold serial and configuration data, then write and verify the new image.
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 →