Schematic PDF, archived as RAR, for board CIH77S version 1.0 used in B340 and B540 models, as stated in the name. Because one board serves both model names, the drawings should apply to either as long as the PCB marking and revision agree. A schematic like this lets a technician trace the power-on sequence, locate the source of a missing rail, follow signal lines between the chipset and connectors and check component values. Open it in any PDF viewer and use text search for net names to jump quickly between pages.
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 | 2 Sept 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 14 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.