BIOS archive for the MSI B85M-E45 motherboard with board code MS-7818 at revision 2.1, roughly 7.59 MB in a RAR. The MS-xxxx number is MSI's internal board identifier and is printed on the PCB near the slots. A technician programs this image onto the SPI flash with an external programmer when the board fails to post after a corrupted update. Make sure the board reads MS-7818 rev 2.1, since the MS-7817 variant differs, read and keep the original chip, and confirm the image size fits.
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.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 28 Aug 2023 | Open file on RM Schematics |
| @generalbios | 12 Oct 2023 | Open file on RM Schematics |
| @generalbios | 19 Oct 2023 | 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 →