The main computer problem? ?

My main computer every time a boot as long as less than 2 seconds on the automatic shutdown, there is no response in the open, and then unplug the power cord to host the plug, and then will open the case of the automatic shutdown.Every time This repeated about 30 times or so in order to open the computer to run them ..but the host will hear the current magnetic pull magnetic pull of the voice.This is where the problem le?

for power.and the basic power relationships you have memory card and so on down the hardware you are down and out and then wiped clean up some hardware in-house chassis of the golden finger and then carefully put the plug back to get a look at This was not the best or not to send garages go and see the disease for a long time delay on the bad governance of the electricity to die, for you have a power supply problem or motherboard capacitor explosion pulp (Xu Han)
for the board to other machines Try on, the board ruled out if the problem can be sure that the basic problem of power supply is a problem or motherboard capacitor 1, 10 explosive slurry old power supply problems, but the best to find a mechanic to see.