We have a base Mac Mini which I believe is a late 2009 model (before they got the new 2010s), and it only has 2gb of ram. Will the ram out of my MacBook Pro 4gb 13" 2010 model fit this? Because I upgraded to 8gb of ram and the Mac Mini is doing the beach balls a lot lately and requires a restart to resolve it for a while. But at least twice a week we have to restart the Mini to solve that issue. Any ideas what might cause that too?