RAR archive for the ASUS X505ZA laptop, about 2.67 MB, with no revision or board number in the name and no indication of what it contains. The size suggests a schematic set or a combination of schematic and boardview, but check after extracting. Documents for this model help follow the power path, check rails supplying the processor and memory, and find the component pulling a line to ground. Schematics open in a PDF reader, layouts in a boardview viewer. Compare the board number and revision on the PCB with the documents before working.
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.