Firmware image for the MSI H81M-E33 V2, built on the MS-7846 design, BIOS release B30. The name gives no flash capacity; the RAR is about 5.85 MB, so check the extracted file size against the chip on the board. It is used to rewrite the SPI BIOS with an external programmer when the board will not boot. Because MSI shares MS-7846 among many models and the V2 suffix denotes a revision, verify the PCB markings and keep a dump of the original 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.
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 →