Main BIOS dump for the MSI MS-1491 laptop board, described in the name as the big BIOS and kept separate from the small mini BIOS chip. The 4.00 MB image matches a 32 Mbit SPI flash. The uploader marked the read as risky, so its integrity is not confirmed and it may carry read errors. MS-1491 is an MSI in-house board number. Inspect the dump in a hex editor, compare it with another source if possible, keep your original chip read, and verify after writing with the programmer.
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 .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →