MSI MS-7295 schematic labelled revision 0A, a 1.06 MB PDF readable in any PDF viewer. As one of the earliest revisions of this desktop board, it may differ from later ones in component values or placement, so verify the version marked on the PCB. MS-7xxx is MSI's own board numbering. The schematic helps a technician follow CPU power stages, memory and chipset voltages, power button and reset logic, and locate parts that could be causing a short or no-power symptom.
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 @pepeelectronica. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.