05-18-2015 06:06 PM
05-19-2015 08:09 AM
Welcome to the Lenovo Community !
Sorry to hear of your problems.
Since this all started after taking the laptop apart it is difficult to say where the problem might be. I assume you never got far enough to swap the processor so that shouldn't be the problem. AMD and Intel processors aren't interchangable. You did say you installed memory. Have you tried putting the old memory back in to see if the system boots up?