Windows executable presenting a power-up sequence diagram for 10th-generation Intel platforms without Deep Sx support, branded SKBWORLD, 2.98 MB. Such guides show the order in which standby rails, enable signals and power-good lines should appear, helping a technician find where a dead board stops in its start sequence. Because it is an .exe, scan it with antivirus and run it in a sandbox before use. Check the timing against the actual board schematic.
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 @IT_SERVICE_WORLD. Enginerys does not host this file.