Reference schematic for the GeForce RTX 3090 on the GA102 GPU, NVIDIA board PG136-A03, revision B, provided as a PDF inside a RAR file. Partner cards based on the reference design follow this layout closely, so it is useful for tracing the NVVDD and FBVDD power stages, PEX lines, strap resistors and the display output path. Repair shops rely on it when diagnosing shorted MOSFETs, missing memory voltage or a card that does not enumerate. Open it in a PDF viewer after extracting. Check that the PCB carries the same PG136 code before using it.
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 May 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 15 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.