Tested BIOS image for the MS-A9531 board, version 1.2, compressed in a 2.78 MB RAR archive. MS- numbering is the scheme MSI uses for its motherboards. Technicians write such dumps to the SPI flash chip with a programmer to repair boards with corrupted firmware, no POST or boot loops. Before flashing, read and save the original chip, verify the board revision on the PCB reads 1.2 and make sure the image size matches the capacity of the installed flash chip.
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.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 19 Aug 2023 | Open file on RM Schematics |
| @generalbios | 12 Oct 2023 | Open file on RM Schematics |
| @generalbios | 26 Nov 2023 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | Open file on RM Schematics |
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 →