BIOS image for a desktop motherboard identified only as H81M-P33, an H81 chipset micro-ATX board, stored in a 5.88 MB RAR. The name does not state the vendor, version or flash size. Firmware of this kind is used to reprogram the SPI BIOS chip with a programmer such as CH341A when the board fails to POST after a bad update. Read and save the existing chip contents first, check that the model printed on the board matches, and confirm the image size equals the chip capacity 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.
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 →