Firmware for the Biostar H61MHB desktop motherboard, version 6.x, with H61MR530 in the name, which appears to be the BIOS release identifier; the record is tagged with the ECS brand. The board uses the Intel H61 chipset for LGA1155 processors. The 1.58 MB RAR is meant for recovering a corrupted BIOS by writing the SPI chip with a programmer or through the vendor flash tool. Verify the board version on the PCB and back up the existing chip before writing anything.
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 →