PDF schematic for the MSI MS-7803 motherboard, revision 1.0, packed in a 742 KB RAR. The MS-xxxx code is MSI's internal board number and appears on the PCB itself. Use the diagram to trace supply rails and voltage regulators, test for shorts on power lines and follow control signals when diagnosing a dead board. A standard PDF reader opens it. Check that the code and revision on the board match 1.0 before relying on part values or reference designators.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 12 Feb 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 19 Jul 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.