Schematic for the MSI MS-7A78 motherboard, PCB version MS-7A781, packed as a RAR archive of 5.32 MB. The MS-7xxx numbering is MSI's own desktop board coding, with the trailing digit marking the PCB revision. Use the drawing to trace VCORE phases, memory rails, chipset power and the BIOS SPI wiring when diagnosing no-power or no-post faults. Check the version printed on the board near the slots is MS-7A781 before taking measurements from these pages.
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 @schematicslaptop. Enginerys does not host this file.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 29 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 19 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.