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my pc turns on then off

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  • Components
  • Power
Last response: in Components
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February 15, 2014 10:04:22 PM

My PC was working fine.. Then suddenly today when i pressed the power button... It turned on.. And the other second it was off.. I pressed power button multiple times but nothing happened.. Then i turned the main supply off and then on again .. And then pressed the power button.. My pc was on for a second and then off again. Can anyone tell me why is this happening and how can i fix this? It was working conpletely fine the day before...

More about : turns

February 15, 2014 10:06:48 PM

This does happen sometimes, have you tried resetting CMOS or trying to get it started in Safe mode?
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February 15, 2014 10:07:15 PM

^ don't think safe mode will help, seems like its not even posting

Usually points to a power supply or motherboard failure or bios issue
You can try restting the bios

Do you have some ram/psu/gpu spares to test with? CPU or mb too if you got those
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February 15, 2014 10:16:46 PM

no i don't have any spares to test with..
How can i reset the bios??
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February 15, 2014 10:17:44 PM

stickmansam said:
^ don't think safe mode will help, seems like its not even posting

Usually points to a power supply or motherboard failure or bios issue
You can try restting the bios

Do you have some ram/psu/gpu spares to test with? CPU or mb too if you got those


not many people have spare CPU's and stuff just sitting around :S resetting CMOS or taking out the mobo battery would be a good 1st step trouble shooting thing to do
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February 15, 2014 11:23:14 PM

how do u reset the cmos?? n what's that mobo battery thing? sorry i m not much into hardware stuff.. you will have to explain... :( 
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February 16, 2014 12:38:40 AM

nivedita1 said:
how do u reset the cmos?? n what's that mobo battery thing? sorry i m not much into hardware stuff.. you will have to explain... :( 


how to reset CMOS: http://www.youtube.com/watch?v=Pdp_L5IxaNI
how to take out your mobo battery: http://www.youtube.com/watch?v=ao866I9XpTo
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