how to upgrade video card in late 2013 imac

So maybe the logic board is not damaged after all. i've just spent the afternoon switching the motherboards and CPU.Įxactly the same result as the old logic board. 4 days later a new mother board arrives with no CPU. So, I draw the conclusion that the mother board is damaged. Now I found this thread and looking at the costs and delivery times I purchased the 4790 (Not the K) instead of the 4771 that was shipped in the machine. Put the heat sink on and then invert the whole logic board to insert the screws and spring from underneath.ĭisaster! The CPU slipped and I wound up crushing the edge of the chip!ĭon't panic, stiff upper lip and all, lets get a new CPU before my wife finds out.Īmazon to the rescue. On this model you have to put the CPU in the socket put the 'gunk' on. So I took the heat sink off, cleaned it up and reapplied. New hinge in place I though - well whilst I've got it stripped downs so far, I may as well replace the thermal paste with some Arctic Silver 5. Having purchased a new hinge and the required strips to reseal the machine once I'd finished I proceeded with caution. So the hinge failed on this machine and, knowing my way around the iMac and other machines, I decided to change it myself. IMac 2013 27' 3.5GHz Nvidia GT780M 4GB (This may or may not be important)

This is what happened to me and what I have done so far. I don't know if anyone is still reading this thread.

How to upgrade video card in late 2013 imac