MSI MS-7A40 motherboard schematic, version 2.0, supplied as a PDF compressed in a RAR archive. MSI uses the MS-7xxx pattern for its desktop mainboards, and each version can change power stages or component placement, so the revision marked on the board should read 2.0 before you rely on these sheets. Typical uses include checking the standby and main rails, tracing the power button and reset logic, and finding the BIOS flash chip and its supply. Open with WinRAR or 7-Zip, then any PDF reader.
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 | 4 Apr 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.