Chosen Solution
Hi all, I got a logicboard of an iMac A1418 (Late 2013) which has some bent pins within the CPU socket. I guess this happened due to a failed try to upgrade the CPU. Anyway, most of the pins have been brought in the correct position again (real exhausting work by the way) but one of them seems to miss the ‘head’, which is coming in contact with the CPU pad. I am not 100% sure whether it is however still touching it or not. Does anyone know whether it is possible to simply replace one of those approx. 100 pins of the CPU socket individually? Otherwise I thought about extending it with a slight piece of fully soldered wire (about 0.5 to 1mm). Anyway, I could exclude the issue coming from the PSU or the CPU, as those are known good parts. After inserting the power cable, the first diagnostic LED lights up as usual. But after pressing the power button nothing happens, there is no fan activity nor another LED flashing (power button is working fine though). So my question is: In case of a faulty connection between CPU and CPU socket, how will the iMac behave usually? Would it make any noises as it does while ram is missing or faulty? Any help appreciated ;-)
A damaged CPU socket is the death nail for the logic board. There really isn’t anything one can do to fix it once the contacts are damaged beyond working. At this point I think you’ll need to swap out the logic board (with its CPU) to see what happens. A single diagnostic LED is often a bad power supply but I’ve seen the logic board also damaged as well. Until you swap out the logic board or if you can the power supply.
