Start with a thorough visual examination under good lighting. Look for:
(a Brazilian electronics forum) contains a thread where a user urgently requests the schematic for a Foxconn 115XDBP Rev 1.0 that does not turn on. Without a schematic, the board is described as "a maze". This thread is a classic example of why technicians need these diagrams—especially when dealing with power delivery issues. Unfortunately, no direct download link is provided in the thread. foxconn 115xdbp motherboard schematic