I tired to power on my system but not working... mother board lights are on but when i pressed power on button nothg happent pc not starting... i changed psu and powerswtich and checked same probelm was facing... then i take the cpu to the shop and tried to power on then it work.... after that take back to home and i tried it but same prblm again showing. I dnt knw wats happenig... i change power cable etc... wat should i do... plz help me