Schematic for the MSI B85M-G43 micro-ATX motherboard, board MS-7823, revision 1.2. It covers the Haswell-era CPU power stage, the DIMM and chipset rails, the Super I/O, rear panel I/O and the SPI BIOS chip. That makes it useful for diagnosing dead boards, stuck standby power or VRM shorts. A second PDF with the same board and revision also exists and may be the same document or a different export. Match the PCB markings before you replace parts.
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 @alischematics. 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 | |
|---|---|---|
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 12 May 2025 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.