Firmware package for the ASUS P8Q77-M2 desktop motherboard, labelled CDM SI, a tag whose exact meaning the name does not explain, so treat it as a specific variant build. At 9.49 MB the RAR is larger than the plain BIOS release for the same board and may contain extra files or a full region image. Technicians use such dumps to recover a board stuck on a corrupted BIOS by reflashing the SPI chip with an external programmer. Back up the existing chip contents and confirm the image size fits the installed flash before writing.
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 Jan 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 →