TechnoV macrumors newbie Original poster Oct 20, 2016 #1 My imac has a black screen. At the startup I'm hearing the chime sound but can't see anything. I saw my logic board and I check that it has 4 leds (green). I bought a new led cable but no effect. Is my screen dead? Is my gpu dead? iMac mid 2011
My imac has a black screen. At the startup I'm hearing the chime sound but can't see anything. I saw my logic board and I check that it has 4 leds (green). I bought a new led cable but no effect. Is my screen dead? Is my gpu dead? iMac mid 2011