BIOS dump packed in a RAR archive for a board marked NB2500_PCB_MB_V5 with the A5 A21 identifiers, motherboard revision E, sized for a 16MB flash chip. The name states that the image was tested and works fully. A dump like this is used to recover a board that shows no display or loops at power-on by writing the image straight to the SPI chip with a hardware programmer such as a CH341A. Verify the board marking and revision E on the PCB, confirm the chip really is 16MB, and save the original contents before flashing.
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 Jun 2024 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | 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 →