BIOS dump for the ASUS X540MAR motherboard at revision 3.1, distributed as a 5.70 MB RAR. Use it to reprogram the SPI flash with a hardware programmer when the board is stuck without display or in a boot loop caused by corrupted firmware. ASUS boards of the same model may differ between revisions, so confirm 3.1 is printed on the PCB. Back up the existing chip before erasing it, and verify the extracted image size equals the flash chip capacity 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 @sm_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 | |
|---|---|---|
| @sm_bios | 21 Oct 2026 | Open file on RM Schematics |
| @smbiossupport | 21 Oct 2026 | 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 →