K40AB boardview at revision 2.3, a 121 KB .fz file with no brand given in the name. Load it in a viewer such as OpenBoardView or FlexBV to search part designators, highlight nets and pinpoint test pads while diagnosing no-power, short-circuit or no-display faults. Because an earlier 2.0 revision also circulates, check the revision printed on your motherboard; component positions and values can differ between versions, and using the wrong one can send you probing the wrong part.
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 @opendatasheet. Enginerys does not host this file.
How to open a .fz file
Compressed and encrypted boardview used for ASUS, ASRock and Pegatron boards.
OpenBoardView (FZ key required)FlexBVBoardViewer