Archive for the Gigabyte GA-H81M-S desktop motherboard, PCB revision 1.0 as given by the R10 suffix. It is based on the Intel H81 chipset for Haswell-generation processors. At 526 KB the contents are more likely a schematic or boardview than a full BIOS dump, though the name does not say. Gigabyte prints the revision on the board near the PCIe slots, so compare it before using the material. Use it for tracing VRM and standby rails or locating components.
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 @schematicslaptop. 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.
7-ZipWinRARThe Unarchiver (macOS)