No display diag led 1 and 2 on but 3 is flashing
I have I mac that i am working on when you try to power it on the fans are on, led 1 and 2 are on solid, led 3 flashes slowly, and there is no chime and the screen is black. I have seen posts on here if led 3 is not on but none if it is flashing. I don't want to replaced the video card if that is not the problem.
Is this a good question?