cpu does'nt turns on

[raja12]

Hello,
I have bought my PC 2 years back
Processor AMD athelon II
motherboard Biostar
RAM 2 GB
when I turn on my PC everything light,fans,CD drive turns on except processor
I have tried a lot seeing other forums

Cleaned the CPU
Cleaned the RAM with rubber and tried putting it in another slot.
When I turn on pc without RAM I don't hear any beeps
Cleared the CMOS
Applied new thermal paste

Sometimes after waiting for around 20 minutes CPU turns on and runs fine

What might be the problem?
Is processor or motherboard is damaged.if so why sometimes it turns on
Is processor not getting power supply properly.how to ensure that

I am trying from 3 days and not able to solve it
Please help me


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[aparnell572]

unplug the power supply and hold the power button for 1 min. Try and plug back in to see if that works, good luck

 

[scout_03]

could you use another psu to test system .

 

[raja12]

unplug the power supply and hold the power button for 1 min. Try and plug back in to see if that works, good luck

i tried but it is not working still same problem