MSI MS-7721 revision 3.1 boardview, stored as a .cad layout file inside a 497 KB RAR archive. The MS-7721 code is MSI's internal motherboard number, printed on the PCB along with the revision, and the two should match before you trust pin positions from this file. Technicians use such a layout to find where a net runs, identify a missing component by its reference designator, and pick convenient probe points when measuring voltages or hunting a short. Extract the archive and load the file into OpenBoardView, FlexBV or a similar boardview tool.
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 | 8 Oct 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.