Archive for the MSI MS-7623 motherboard, 810 KB in RAR format; the name does not say whether it holds a schematic, boardview or BIOS, nor the revision. Open it first to see its contents before planning a repair. MS-7xxx is the pattern MSI uses for desktop mainboards, and the board code with its revision is printed on the PCB, so check that it matches. If it contains a firmware dump, back up the original SPI chip with a programmer before writing; if it holds diagrams, use them to trace rails and signals.
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.