iMac won't start up. No diagnostic LEDs. PSU tested fine (see . below)By the way, the model I have is the "late 2015" that shipped with i5-6500 processor. This is the skylake processor family. Th...
Can I upgrade my CPU on iMac from i5-2500S to i7-2600?(1) Current CPU: i5-2500S (2.7 GHz Sandy Bridge i5) (2) Upgrade to CPU: i7-2600 (3.4 GHz Sandy Bridge i7) TPD is 65W on the i...
Answer to: Upgrade to Ivy Bridge CPU?I'd like to add to this by saying that I have been able to upgrade 2011 iMac 27" Base i5-2400s processor to sandy bridge i7-2600k without any problems. It has been a year since the upgrade, and there have not been any problems to report (e.g. heat related, or power related issues). I would love to see someone try to put a ivy bridge processor inside the 2011 iMac to see if it would work. My feeling is that the EFI support and other kernel based tweaks would probably prevent it from working properly.