BIOS for a ZX-H55M desktop motherboard, version 1.51, sized for a 4 MB flash chip, distributed as a 1.32 MB RAR archive. The name gives no brand, so verify the model printed on the board and the chip marking before use. A dump of this kind is used to recover a board after a failed update by programming the SPI chip directly. Read and keep the original contents first, and make sure the extracted image is exactly 4 MB so it matches the installed chip capacity.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 30 Mar 2024 | Open file on RM Schematics |
| @generalbios | 8 Apr 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 →