RAR archive of 751 KB labelled only 1530, which gives no brand, board number or chip details. The number may refer to a model such as a Dell Inspiron 1530, but that cannot be confirmed from the name. Extract it and examine the images and any notes inside before use. Firmware dumps like this are programmed into the SPI flash with an external programmer; verify the target board, check that the file size equals the chip capacity and back up the existing contents first.
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 @biosbigarchives. 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 →