No picture, fans running, possible failure?
Hi there,
I have an iMac 11,2 (A1311) here, after turning on the iMac, there is no picture showing up, no typical Mac chime, Diag LEDs onboard showing LED 1&2 coming up, LED 3/4 is dark. I already changed the video card, same result. Connectors are fine, nothing broken. Unfortunately I think that the LogicBoard is defective, but as a replacement is very expensive, I hope that someone might have another recommendation/ tip?
Thanks,
Marcus
Es esta una buena pregunta?
Case solved- it was the processor which was faulty, I replaced it with a i5 3.6 GHz, and it´s working fast and reliable.... a processor health checking routine within it´s diagnose LEDs, that´s what I am missing :-)
I am aware that swapping the processor is not a regular option, but if I have a choice of replacing the processor or buy a 400 EUR+ replacement board, well...
So I hope that this may help others to fix their iMacs!
- de MacMarcus