Second copy of the ASUS X540SA RG archive, identical in size at 867 KB, with a (1) suffix that typically arises from saving a duplicate. RG on ASUS files usually refers to the revision release; the exact revision is not stated. Extract it to see whether it contains a schematic PDF, a boardview or both, and compare it with the other copy if one of them is damaged. Such documents help trace power rails, locate test points and identify parts on a short. Confirm the board revision on the PCB matches before trusting values.
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 @cyberlanelectonik. 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.