Disable onboard RAM patch for the ASUS X550CC, board revision 2.0, in a small 162 KB RAR archive. Because of its size the archive may hold a partial or compressed image rather than a full flash dump, so inspect its contents before programming. The goal is to make the firmware ignore soldered memory so the laptop runs from the SO-DIMM slot. Back up the original SPI chip, confirm rev 2.0 on the PCB, and ensure any final image matches the flash capacity before writing with a programmer.
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 (19)
The same file was posted more than once. If one link is dead, try the next.
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 →