Issues after fresh OS install and restore: NONE, No sleep or hibernate issuesĪlthough upgrading the iMac is straightforward and relatively easy, there are (3) main potential installation problems which can lead to an inoperable and damaged iMac.ġ. Speed test: blade 2500 MB/s write, 3000 MB/s read, SATA SSD 450-ishĪdapter: Sintech ST-NGFF2013-C with additional Kapton tape, OWC temperature sensor not used HDD upgrade: 1TB SATA HDD -> 1TB Samsung 960 EVO SATA SSD
Processor Name: Intel Core i7-7700 4-cores, 8-threads, 3.6 GHz I upgraded the CPU and SSD on my 2017 27-inch Retina 5K iMac, model A1419 (MNE92LL/A) to an i7-7700 processor and 2TB 970 EVO NVMe Samsung M.2 SSD as well as an 1TB 860 EVO SATA III SSD. UPDATE: The Samsung 2TB 970 EVO Plus now works with macOS with new firmware update. UPDATE: Information regarding upgrading the 2019 27-inch IMac with the Intel i9-9900K CPU and 2TB Samsung 970 EVO NVMe SSD can be found in the post below: IMac (Retina 5K, 27-inch, 2017) CPU and NVMe SSD Upgrade Pitfalls and Tips
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