BIOS dump for the N73SV main board, revision 2.0, with the name noting a 4M image, meaning a 4 MB flash, in a RAR of about 1.62 MB. A technician writes this to the SPI chip with a programmer to recover a laptop that no longer posts after corruption. Check that the flash chip on the board is a 4 MB part, since an image of a different size will not fit. Read and keep the original chip contents before programming, and verify the board revision first.
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 →