HCL BIOS firmware for a board built around the Nvidia MCP79MVL-B2 single-chip chipset, archived as a 1.78 MB RAR. MCP79 is Nvidia's integrated chipset family combining system logic and GeForce graphics in one package, which explains the single chip label. The name gives no exact model, so match the chipset and board to the dump before use. Write it with an SPI programmer only after saving the original chip contents and checking that the image size fits the flash.
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.
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 →