Working BIOS dump for the ASRock B75 PRO3 desktop motherboard, compressed into a 4.60 MB RAR. Boards with a corrupted firmware often show no display or loop on power, and reflashing the SPI chip with a known good image is the standard fix. Clip or remove the chip, use a programmer such as a CH341A to read and store the original first, then write and verify the new image. Confirm the image size equals the chip capacity, otherwise it will not fit, and expect to re-enter the LAN MAC address if it is overwritten.
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 | 12 Feb 2024 | Open file on RM Schematics |
| @generalbios | 19 Feb 2024 | Open file on RM Schematics |
| @generalbios | 6 Mar 2024 | Open file on RM Schematics |
| @generalbios | 14 Jul 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 →