BIOS for the ASUS M4A77T desktop motherboard, with REV 1.01G in the name, which is probably the board revision, supplied as a 664 KB RAR archive. The small size suits an older board with a low-capacity flash chip. It can be used to reprogram a corrupted BIOS chip with an external programmer or to restore a known firmware state. Compare the revision on the PCB, save a backup of the current chip contents, and confirm the image size matches the chip.
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.
All sources (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 7 Oct 2023 | Open file on RM Schematics |
| @generalbios | 8 Oct 2023 | Open file on RM Schematics |
| @generalbios | 9 Oct 2023 | Open file on RM Schematics |
| @generalbios | 9 Oct 2023 | Open file on RM Schematics |
| @generalbios | 13 Oct 2023 | Open file on RM Schematics |
| @generalbios | 15 Oct 2023 | Open file on RM Schematics |
| @generalbios | 20 Oct 2023 | Open file on RM Schematics |
| @generalbios | 26 Oct 2023 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | Open file on RM Schematics |
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 →