RAR archive, 1.62 MB, covering the ASUS A8E and A8S notebooks, which share a platform according to the name; contents and board revision are not stated, though repair packages like this commonly contain a schematic. Use it to trace power rails, check regulator feedback networks and read connector pinouts when diagnosing a dead or unstable board. Extract it and open the files in a suitable viewer. Since two models are combined, confirm which variant and revision your mainboard is before relying on any circuit detail.
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.