My Dell Inspiron 1545 laptop wont start up

Hello people

I'm no computer expert so all help would be great.


The problem when the left clicker did not spring just under the mouse pad on the laptop. I decided to try and take the laptop apart to fix it but never had any luck. So i gave up and decided to put it back together, Now when i turn it on it just comes up with a blank screen and keeps beeping.

i removed the disc dive and the processor and 2 small cards when trying to look for screws to open it up.