BIOS for the ASRock B85M-HDS, version 1.80, supplied as a 5.1 MB zip. It may be an official update file or a full dump for direct programming, and the size should be checked against the board's SPI flash chip before writing. The B85M name points to the Intel B85 chipset. If the board will not POST after a failed update, the image can be written with an external programmer. Read and save the existing chip contents first, and confirm the exact model and revision printed on 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 (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 22 May 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 26 Oct 2021 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Jul 2025 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →