Jan 5, 2012

PC takes long time to start up


Scenario:
Someone called me up from production office and told me that 
his computer takes 20 to 30 minutes to start up. Sometimes he 
need to unplug the power cord in the outlet and plug it in.I take
his computer and bring it on my room. I open up the computer
and visually inspect the motherboard, cpu fan and power supply fan.      

Problem:
I notice that the fan of power supply is not working properly. If the
fan is not working properly, the power supply unit will not also function
properly and it indicates that the power supply is faulty.      

Solution:
This is the solution I made. I replace the power supply unit with the
new one. After I replace the power supply unit, I turn on the the
computer and it is now start up normally. I also tried to open up
the power supply unit and I notice one of its capacitor is partially
blown. This is the cause why power supply unit won't work properly
 to give enough power to the computer.           

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