Diagnostics did not pull up any issues with the memory. I remember an issue I had with my Compaq E500 laptop many years ago when the battery started to fail it caused the computer to do something similar. So turning my attention back to the Acer in front of me I decided to pull the battery and exchange it with my friend's Acer battery. Voila! It started up no problem and has been fine ever since. The peculiar thing is that my friend's Acer started no problem on my battery!
I suggest- if you can- rebuilding your laptop. Maybe something has been slightly disconnected. It can be a list of things. Just take it apart and check if its a hardware issue. I guarantee you it is though because what could be wrong with any of the software? Like i said, just check and see if anything is disconnected or loose or anything in that nature, but if you don't want to risk anything because you may be new to computers (IDK), then ask an IT guy.