Firmware archive for the board codenamed PETRONAS-14, with a PM suffix whose meaning the name does not explain; no laptop brand or board number is stated. The RAR weighs 2.13 MB and should be extracted to locate the binary image. A dump like this serves to restore a dead or corrupted BIOS chip using an SPI programmer. Always make a backup of the existing chip contents, compare the codename printed on the motherboard, and ensure the image length equals the flash capacity before writing it.
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 →