BIOS dump set for a Lenovo board marked IS8XM revision 1.0, with the name listing chip locations U4, U5 and U107 and stating the dump is fully working. IS8XM appears to be a Lenovo desktop motherboard code, and the three designators suggest separate images for different flash or EC chips on the board. Match each file to its chip position, read and save the original contents with an SPI programmer first, and confirm each image size equals the chip capacity before writing. Check the PCB revision matches.
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 →