BIOS image for the ASUS X540MAR motherboard, revision 3.1, marked as fully working, archived in RAR form. ASUS names its laptop boards after the model, with the revision printed on the PCB. Technicians use dumps like this to fix boards that power up without display or loop at boot due to damaged firmware, writing it with an SPI programmer. Back up the existing chip first to preserve serial and licence data, and make sure the board revision reads 3.1 and the chip capacity suits the image.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 2 Jul 2023 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 21 Jan 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 →