BIOS firmware archive for the MSI B450M PRO-VDH V2 motherboard, board code MS-7A38, packed as a 25.9 MB RAR. The name gives no version or chip details, so inspect the contents after extracting to see whether it holds an update file or a full SPI dump. B450 boards use AMD socket AM4 processors, and a corrupted BIOS is a common cause of no-POST. Before programming the flash with a CH341A or similar, back up the original chip, confirm the image size equals the chip capacity and match the board revision.
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 →