Not booting up

Mar 21, 2018
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I have a Sony Vaio laptop that wasn't booting up so I opened it and watched for any problems but I can't see any physical problems .when I put out the processor chip it starts but only lights turn on not the display ...when I put the processor back in it isn't starting. Help me !
 
Solution
Could be a motherboard issue. Or bad CPU, or bad RAM, or bad drive, or keyboard. No way to know exactly where the issue is without replacing parts.