Schematic in PDF form for the Gigabyte GA-990FXA-UD3, revision R401, archived as RAR at roughly 809 KB. It is useful when diagnosing no-boot or no-power faults on this desktop board: follow the VRM phases, standby 5V and 3.3V circuits, BIOS chip connections and reset logic to the faulty stage. Check that the revision printed on your motherboard really reads 4.01, since neighbouring revisions such as 4.02 or 3.02 may use different parts or values. After extraction any PDF viewer will display the pages and allow searching for net names.
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 | 18 Mar 2024 | Open file on RM Schematics |
| @generalbios | 15 Dec 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.