BIOS package labelled NB6380E MB V3 for a 16 MB flash chip, compressed in an 18.2 MB RAR archive. No brand is given, and the name only states the board code, version 3 and chip capacity, so match the markings on your PCB carefully. A larger archive than the image size suggests extra files, perhaps EC firmware or tools. Check that the extracted dump is exactly 16 MB before writing it with an SPI programmer, and keep a backup of the original chip contents in case the image does not suit.
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 →