PDF schematic of the Gigabyte GA-990FXA-UD3 motherboard, revision 1.2 according to the name, supplied as a 734 KB RAR archive. A technician uses these pages to follow the CPU VRM, chipset and memory power rails, check the standby and power-on sequence, and identify the parts behind a dead or shorted line. Because this board model exists in several PCB revisions with differing layouts, compare the revision printed near the expansion slots with the one on the drawing before replacing components. Extract the archive and open it in any PDF viewer.
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.