Inspiron 5150 AC power problem - system board repair

I've just managed to power on my laptop and it works fine.All I did was to take both ram memory out and put them back in place securely

that's all. I'm really glad and proud to have accomplished this and got it done nicely.

Thanks to everyone that have had  concern in trying to solve my problem. The only problem I have now is that I can't log into my yahoo account

this is the message I get " secure Connection failed "   and "login.yahoo.com uses an invalid security certificate " .