hardware problem

[Tsu-Fan Cheng]

Hi guys,
   this is really not about freebsd per sa. But this is the only
computer-related forum I use. so please forgive me.
    my desktop was relocated due to my recent moving to a new
apartment. After settling down at the new place, I plug in the cables
and the computer won't start up. I open the case and found out that
when i switched on the power supply from the back, the power fan and
cpu fan will spin for a split second then stop. I tried to debug by
unplugging the cables, when doing so, sometimes the fans will spin for
10 seconds, maybe, but most of the time, it just stopped right after
the power switched on. I also try to hold down the start button on the
front for a while, but no good. I was told the mother board maybe
short-circuit. can anyone give a second opinion?? thanks!!

TFC