PDF schematic for the MSI Z87-G45 desktop motherboard, board number MS-7821 version 1.2, compressed in a RAR archive. MSI labels its boards with the MS-xxxx pattern and prints the version near the slots, so check it reads 1.2 before relying on the drawing. The Z87 chipset places this board on Intel LGA1150. Technicians use such diagrams to trace VRM phases, standby rails, the BIOS chip wiring and front-panel signals, and to find which component is shorting a rail.
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 (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 30 Sept 2023 | Open file on RM Schematics |
| @generalbios | 6 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.