Archived BIOS for a Dell MH61R motherboard built on Wistron board 10097-1, stated as a 4 MB image. The name suggests an Intel H61 chipset based desktop board. Unpack the RAR and flash the binary to the SPI chip with a hardware programmer when the board will not POST because of corrupted firmware. Make sure the flash chip really holds 4 MB, since a mismatched size will not program correctly, and read out the original contents first so system data can be recovered if needed.
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 →