Known differences in logic boards of the 27” iMacs in respect to CPU?
So, similar to Zach in other posts, I have successfully upgraded a 2019 27” iMac with 9600k and Radeon Pro 580X to a 9900k.
I am interested in doing the same for one of the 2019 with either the 8500 or 8600 CPU’s.
Looking at Apple’s site, the 8600 with 575x does have an option to upgrade to a 9900k.
Does anyone know whether this would be a possible user upgrade?
I see someone has unsuccessfully done so with the 8500 27” iMac base model. Understandably, this could be a limitation of the EFI; however, I question whether that was also just a poor installation of the 9900k. The retention mechanisms are tricky to reassemble in these iMacs.
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