Shutting down as its booting up.
My Girlfriend has a MacBook 13" and I have a MacBook Pro 15". She sometimes uses my power charger.
Today her Mac is not booting at all. I had upgraded her HD to a SSD and new memory. I had assumed this was the problem so I changed back the HD and the memory.
The problem still persists:
The Mac will boot just after the apple sign comes on then it will shut itself down.
Anyone has a suggestion?
Is this a good question?