BIOS image for a QUADRO-branded H55M-55C desktop motherboard, compressed as a 609 KB RAR. The name states a 4 MB size, which should correspond to the capacity of the SPI flash used on the board. H55 boards of this class carry an 8-pin SPI chip that can be reprogrammed with a common USB programmer when the board fails to boot after a bad update. Before writing, save the current contents and check that the chip capacity matches the 4 MB image, since a mismatched size will not fit.
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 (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 20 Jan 2021 | Open file on RM Schematics |
| @laptexlaptopbios | 21 Jan 2021 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 27 Apr 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 26 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | 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 →