Backup BIOS dump read from an ASUS X540SA laptop and marked as tested and working, supplied as a 3.71 MB RAR archive. Since it was taken from a real board, it may contain that unit's serial and other system data, which you might want to replace with your own after flashing. Technicians write such a file to the SPI flash with a programmer to fix boot failures caused by firmware corruption. Read and save your current chip first, confirm that the image size matches the chip capacity, and check that the board model printed on the PCB is X540SA.
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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 9 Nov 2020 | Open file on RM Schematics |
| @biositechyangiyer | 2 Dec 2020 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →