BIOS image for an A740GM-M motherboard at version 7.0, and the name states a 1 MB flash size. It comes as a 701 KB RAR archive. The A740GM-M is a desktop board model, and the V7.0 revision is normally silkscreened on the PCB, so match it before flashing. Use an external programmer to reflash a corrupted chip, and confirm that the chip really holds 1 MB (8 Mbit) so the image fits. Keep a backup of the original chip contents in case the result needs to be reverted.
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 →