BIOS MS-AA5A1 VER 2.1 8MB & 1MB

BIOS .rar 2.55 MB Shared

BIOS package for the MSI board MS-AA5A1 at version 2.1, holding an 8 MB image and a 1 MB image. The smaller file is probably EC or a second flash, but verify that before use. The 2.55 MB RAR is used to rewrite SPI chips with a hardware programmer on boards with corrupted firmware. MSI uses MS-xxxx board identifiers. Make sure each image goes to the chip of the matching capacity, back up the originals, and confirm the board marking.

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 (3)

The same file was posted more than once. If one link is dead, try the next.

How to open a .rar file

Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.

7-ZipWinRARThe Unarchiver (macOS)

More about .rar files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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