BIOS and EC firmware for an MSI board identified as MS-AA8B1, version 1.1. The name gives an 8MB image size, corresponding to a 64Mbit SPI flash, and the archive is a 3.96 MB RAR. Use it to restore a board that fails to boot or has a corrupted embedded controller, writing the files with an SPI programmer. MSI prints its MS- model and revision on the PCB, so compare them before flashing. Always read and keep the original chip contents as a backup before writing.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 10 Aug 2024 | 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 →