Tested working BIOS dump for an H61H2-LM3 motherboard at revision V1.2, supplied as a 4MB image inside a RAR archive. Note the revision differs from the V1.1 boards of the same family, so confirm the marking on the PCB before writing it. A 4MB file matches a 32 Mbit SPI flash chip, which is normally reprogrammed with a clip or after desoldering using a USB programmer. Save the original contents first in case they hold board-specific data such as the LAN MAC address, and verify the write before reassembling the machine.
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 →