A 1 MB raw BIOS image whose name refers to AT8 and AT9 together with G6100, apparently board or model codes. The name does not state a brand, revision or chip, so identify the board by its silkscreen before trusting it. A 1 MB size matches an 8 Mbit SPI flash, and an image of the wrong size will not fit a different chip. Program it with a tool such as a CH341A after saving a full backup of the original chip, since the backup keeps the serial and system data.
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 .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →