It doesn't need to fail for you to inspect it. Just look at the solder joints holding the header on to the PCB. They should be shiny. If they are dull then you need to got someone to rework them (basically just reheating, maybe adding a touch of solder - a televsion technician or someone like that could easily do it for you. If the header has pins which have lifted off the board they'll need resoldering too of course.

You really need to disassemble the whole thing though to get the motherboard out of the empeg to fix up any soldering problems properly.