RAR archive of 1.73 MB holding BIOS firmware for the PLABX / CSABX board, with both UMA and DSC versions named. UMA refers to integrated graphics only, while DSC denotes the discrete graphics variant, so pick the image that matches the GPU configuration fitted to your board. Flashing the wrong variant can leave video dead. Read and keep the original SPI contents with a programmer, check the board marking on the PCB, and confirm that file size and flash chip capacity agree 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 @afsbiosfree. 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 →