MacBook Pro won't boot past grey screen with apple logo
I had recently spilled some liquid in my Mac and had changed the logic board. My Mac Pro is a mid 2009 13" inch, 2.26 ghz intel core 2 duo processor. I replaced the logic board with a 2010 logic board, 2.68 ghz intel core 2 duo processor. After this change, when turned on the lop top it would go to the grey screen with the apple logo and the gear ball would spin for a couple seconds and stop. It stays there for hours until I force shut it down. I booted into safe mode and it runs and when restart into normal mode there is the same problem. Is there a fix for this that will get my computer up and running?