Firmware for a laptop mainboard labelled N17C1, carrying the Compal board number LA-F991P, stored as a 5.30 MB RAR. The LA-xxxxP format is the standard Compal mainboard numbering used on machines sold by Lenovo, Dell, HP, Acer and others; N17C1 appears to be the project or platform code. The laptop brand is not stated, so identify the machine from the PCB. Before flashing the BIOS chip with a programmer, read and archive its original contents, which keep serial and licence data, and make sure the dump size matches the flash.
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 →