"Here's the guide for doing it: iMac Intel 27"" Retina 5K Display CPU Replacement
UPDATE
The iMac ""Core i7"" 4.0 27-Inch Aluminum (Retina 5K, Late 2015/Skylake) features a 14-nm ""Skylake"" Quad Core 4.0 GHz Intel ""Core i7"" processor (6700K) with four independent processor ""cores"" on a single chip, an 8 MB shared level 3 cache, 8 GB of 1867 MHz LPDDR3 SDRAM (PC3-14900) installed in pairs (two 4 GB modules)
Guys, have you ever tried to put the CPU from the 2017 in the 2015? It is the same socket! Could probably have the support because the 2017 iMac already use it! Any comments?
