Hello,
The screen on my iMac 2013 broke, so I decided to remove it and use an external display. After removing the screen, the fans ran crazy high and it was under-clocked, which makes sense (I now know) because there's a temp sensor in the display.
My issue is when I plug the broken display back in, the fans are completely quiet, so the temp sensor is A-OK, however the mac now runs EXTREMELY laggy. I'm talking you move the mouse and a full two seconds later it jerks over. I haven't even been able to log in when it's like this, it just locks up. When I unplug the display it goes back to crazy fan and under-clocked-but-usable mode.
Does anyone have any idea how to stop the mac from under-clocking when I have the display unplugged, or better yet, why it gets extremely laggy when I plug the display back in? Any help is greatly appreciated.
Thanks,
Sebastian
The screen on my iMac 2013 broke, so I decided to remove it and use an external display. After removing the screen, the fans ran crazy high and it was under-clocked, which makes sense (I now know) because there's a temp sensor in the display.
My issue is when I plug the broken display back in, the fans are completely quiet, so the temp sensor is A-OK, however the mac now runs EXTREMELY laggy. I'm talking you move the mouse and a full two seconds later it jerks over. I haven't even been able to log in when it's like this, it just locks up. When I unplug the display it goes back to crazy fan and under-clocked-but-usable mode.
Does anyone have any idea how to stop the mac from under-clocking when I have the display unplugged, or better yet, why it gets extremely laggy when I plug the display back in? Any help is greatly appreciated.
Thanks,
Sebastian