BIOS dump archive for the Biostar B250-BTC mining motherboard, a 17.3 MB RAR; the OOOKKK tag in the name suggests a tested, working image. The B250 chipset points to an Intel platform, and the listed brand is ECS. Extract the archive with WinRAR or 7-Zip and check the image size against the SPI flash chip before programming with a CH341A or similar programmer. Read and save the original chip contents first, and confirm the board model and revision printed on the PCB match.
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 | 8 Jun 2023 | 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 →