PDF schematic for the Gigabyte GA-H61M-USB3-B3 motherboard, revision 2.0, as shown by the R20 suffix. It documents the power circuits, the H61 chipset connections named in the model, memory and I/O, letting a technician trace rails, verify standby voltages and look up component values. Any PDF reader opens it, and it pairs well with the matching boardview. Make sure the revision on the board equals 2.0, because earlier revisions may use different circuits.
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 @vinafix_bios. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)