On a bad day I tried to power on my PC. When pushing the power button, it blinked only once and I could see the CPU fan started spinning and suddenly it was stopped. Then everytime I am pushing the power button no response at all. Then I made the power supply off. Then tried again and the same sequence of incident is happenning everytime as I mentioned above.
I was used to try this everyday; and then suddenly on a good day, it was able to boot. I thought may be something was there in the motherboard with loose connection and it is unknowingly/amazingly fixed now. Using for some day, again I observed the same problem as earlier it was.
Now the situation is like I never know if my PC will boot today or not; it is like behaving on its mood.
Please help what may be the root cause or how I can fix this everyday uncertainity.
Thanks in advance.