My cpu is not switching on while the power is on. before that it was turned on and began to boot. after the desktop will come or when we use it it will off automatically. so i cleaned the ram and placed it again. now it is not working. what can i do?

1st thing: cpu is processor, not a computer 2st : reseat the ram again 3st : give more info ( do you hear any beeps or something ? ) Cheers our patience is big

snehaviswam, could be a number of things from a tripped breaker/dead plug to an internal computer problem. Think I'd start in with a voltmeter and see where it goes AWOL. Bad switches and also power supplies are common. HTH. Ed in Texas.

With regards to handling the RAM ... Static electricity from your body can ruin the sensitive electronic components in computers.