BIOS firmware for ASUS-style models B5404CVA and B3404CVF, labelled MB old, as a .BIN inside a 14.4 MB zip; the name gives no board number, version or brand. The old tag suggests an earlier firmware build rather than a current release. Such images are written to the motherboard SPI flash with a programmer when the board fails to post or after a bad update. Back up the existing chip first, verify the extracted file size equals the chip capacity, and confirm the model matches before writing.
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 @vinafix_bios. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @vinafix_bios | 23 Nov 2025 | Open file on RM Schematics |
| @vinafix_bios | 23 Nov 2025 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →