BIOS dump for an ASUS board labeled CS-B COM SI, sized for a 16MB flash chip and packed as a 14.2 MB RAR. The COM SI part is not explained by the name, so check the board identifier against the dump. Such images are written to the SPI chip with a programmer such as a CH341A when the original firmware is corrupted. Always read and save the original chip first, confirm the chip capacity is 16MB, and verify the written data before reassembling the board.
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 | 22 Jan 2025 | Open file on RM Schematics |
| @Laptopbiossolutions | 29 Jan 2025 | 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 →