I replaced my Logic board, but the machine will not boot
I replaced my logic board due to a GPU problem with the original. The machine does not boot. I get the chime, and a white lcd. I followed the process to reset the SMC and PRAM. Also when holding down the Cmd- Opt- P -R keys the machine does not reboot. Did I get a bad new board board, or is there some procedure that I need to follow when replacing the logic board that I am not aware of?
when I put my old board back in the machine functions normally, except for the problem I have with my LCD
Is this a good question?