Hi everyone
When I try to start my computer by pressing the power button, the first time it starts and stays on for one second only and then switches off, it does not even reach the POST screen... it switches off within a second after it starts. And when I press the power button again in this state it does not start at all... not even for one second like it did the first time. Then I have to switch off the main power supply to the computer and switch it on again before the power button works but again the computer starts for may be one second then switches off. If the main power supply is kept on and the power button is pressed again then it does not work... then again I have to switch off the power supply and switch it on again to make the power button of the computer work again. This way I have to switch off the power supply and switch it on and then press the power button of the computer and after several such attempts while the computer stays on for one second and then stops, it finally boots up completely. I have noticed that when it finally boots it makes several clicking noises before it starts.
I have replaced the CMOS batteries but that did not seem to help. I have also replaced the cable, plugged it into another power supply but that did not help either. I have also disconnected the cable running from the power button to the mobo and tried starting the computer by briefly touching the pins on the mobo With a metallic object but it gave the same problem as before. So the fault is not with the power button either.
What could be the problem? Can a bad capacitor cause this problem? I think I have noticed a minute quantity of some sort of brown powder over one of the capacitors of the motherboard. I am not sure if the capacitor is damaged though.
Also, is there any software application to diagnose this problem?
Please help me.
Thanks in advance.
When I try to start my computer by pressing the power button, the first time it starts and stays on for one second only and then switches off, it does not even reach the POST screen... it switches off within a second after it starts. And when I press the power button again in this state it does not start at all... not even for one second like it did the first time. Then I have to switch off the main power supply to the computer and switch it on again before the power button works but again the computer starts for may be one second then switches off. If the main power supply is kept on and the power button is pressed again then it does not work... then again I have to switch off the power supply and switch it on again to make the power button of the computer work again. This way I have to switch off the power supply and switch it on and then press the power button of the computer and after several such attempts while the computer stays on for one second and then stops, it finally boots up completely. I have noticed that when it finally boots it makes several clicking noises before it starts.
I have replaced the CMOS batteries but that did not seem to help. I have also replaced the cable, plugged it into another power supply but that did not help either. I have also disconnected the cable running from the power button to the mobo and tried starting the computer by briefly touching the pins on the mobo With a metallic object but it gave the same problem as before. So the fault is not with the power button either.
What could be the problem? Can a bad capacitor cause this problem? I think I have noticed a minute quantity of some sort of brown powder over one of the capacitors of the motherboard. I am not sure if the capacitor is damaged though.
Also, is there any software application to diagnose this problem?
Please help me.
Thanks in advance.