BIOS archive for a ZX-H81 motherboard, version V1.31, intended for an 8 MB flash chip according to the name. The H81 part suggests an Intel H81 chipset board, though the brand is not stated. Use the image to recover a board with corrupted firmware by writing the chip with a hardware programmer. Before flashing, confirm the installed chip is 8 MB, since an image that does not match the chip size will not fit, and read out and save the original contents.
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 →