my pc turns on then off

nivedita1

Reputable
Feb 16, 2014
3
0
4,510
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...
 
^ 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
 

mcdonh

Honorable
Oct 8, 2013
479
0
10,960


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