AMD Polaris 20 graphics chip databook, provided in PDF format inside a 1.45 MB RAR archive. Polaris 20 is a revised Polaris 10 design, and this document lists its pin functions, power rails, memory interface and design rules. Repairers use it to verify supply voltages on a non-working card, map GPU pins to memory and outputs, and understand configuration straps. It is chip-level reference, so match the GPU identification on the package and combine it with the board schematic of the card being serviced.
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 | 17 Feb 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 22 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.