Dual BIOS package for an MSI board numbered MS-15511, containing images for two chips, one of 1 MB and one of 16 MB, in a 5.68 MB RAR. MSI laptops of this generation commonly carry a small separate chip for EC firmware alongside the main BIOS flash, which fits the 1 MB and 16 MB pairing. Both chips must be programmed with the matching image when recovering a dead board. Back up both originals before writing and confirm the MS-15511 marking on the PCB.
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 →