Finding a full component-level schematic for this specific board is difficult as they are often proprietary to the OEM. However, you can find similar resources:
Foxconn uses reference boards. The 115XDBP is likely based on the or 2A8C series. Downloading the retail Foxconn H61MXV manual (not schematic, but user manual) will give you pinouts for fan headers, USB, and audio—which may be identical. foxconn 115xdbp motherboard schematic
