Schematic in PDF form for the Gigabyte GA-970A-D3, here revision 1.41, an AMD 970 chipset board for AM3+ CPUs. It is useful for tracing the processor and northbridge power stages, the DDR3 voltage regulation and the dual BIOS wiring, and for checking the standby circuitry when a board fails to power on. Open it with any PDF reader. Because this model exists in many revisions, compare the marking on the PCB with 1.41 before relying on the part placement or values.
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 @afsschematicfree. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.