|You didn't say which light is steady and which are blinking so you'll need to refer to the guide for what the diagnostic lights mean, it's shown here:|
Refer to this page to see what the diagnostic lights mean on your http://blog.parts-people.com/2014/0...
For one light steady and two blinking I think that's the third picture from the top (RAM not detected).
Make sure you install the RAM properly in the slots. If you don't insert them properly they won't be detected.
message edited by phil22