BIOS archive for the MSI MS-17851 notebook mainboard, version 1.0 as stated in the name. MS- followed by four digits is MSI's model code and the fifth digit marks the board, so MS-17851 belongs to the MS-1785 laptop. A technician uses such a dump to rewrite the SPI BIOS chip when the system will not POST. Unpack the RAR and check whether it holds only the BIOS or also EC firmware, verify the board marking, back up the original chip and ensure the image matches the 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 .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 →