I recently bought on ebay a used logic board for my old white macbook (6,1 / a1342) since the old original one is dead. I installed it with no problems following the ifixit guide. Then I needed to install the OS. When trying to do so I get a "You need to restart your computer warning" . I've already tried changing the memories, resetting the pram, installing from a usb source, installing from another recovery dvd and nothing. I always get the warning message in the first grey screen with the apple logo a a loading. It all makes me believe that I got a malfunctioning logic board. But, just to be sure I'd like to hear your comments or if there's anything other I could try. /edit Just one detail that pop into my mind. I'm using a SSD data 3 driver. could that be the reason of the issue, since the mb is sata 2?