808chopper Posted January 4, 2017 Share Posted January 4, 2017 Hey everyone, new guy here. I'm hoping that someone can give me some guidance. My late 2012 27" iMac will not turn on - nothing at all when I push the power button, hold it down, etc. I tried resetting by unplugging the power cord for 15 seconds. I removed the screen to access the 4 LEDs and when it is plugged in the bottom LED (#1 I'm assuming but could be #4?) flashes and when I hold the power button it flashes faster. No other LEDs on at all. I assumed that it was a bad power supply and replaced it with one I got on eBay. It did not change anything. Does anyone have any experience with this problem? Quote Link to comment Share on other sites More sharing options...
Deepinmind Posted January 17, 2017 Share Posted January 17, 2017 I'm a newbie here, so I might be wrong, but this is the sub for "Hackintosh" computers. That means NON-Apple computers with OSX loaded on it. You might want to try another section of this forum for Mac product related questions. Sorry if I overstepped my bounds as a n00b, just trying to help. 1 Quote Link to comment Share on other sites More sharing options...
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