Clean install of Sonoma on a 2014 5K iMac. It's the top of the line model with an Apple SSD upgrade too. It's running AMAZING. Haven't had a problem. I7-4790K, 32GB RAM,
How to Install/Upgrade the PCIe SSD in a 27-inch iMac (Late 2014 - Mid 2015) iMac15,1 - YouTube
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M.2 NVMe SSD Adapter For 2013 2014 2015 Apple MacBook Air/Pro, Retina iMac 4K/5K | eBay
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Mid 2014 21.5" inch iMac A1418 SSD Hard Drive Upgrade Replacement Repair - YouTube
INDMEM 1TB NVMe PCIe Gen3x4 Internal SSD per MacBook Air 2013-2017, MacBook Pro Retina 2013-2015, iMac 2013-2017, Mac Pro 2013, Mac Mini 2014 : Amazon.it: Informatica
Apple iMac 21.5” SSD Upgrade (2013-2015) HDD To Solid State Drive (SATA) | Step By Step - YouTube
Upgrade SSD Apple iMac 21.5 slim A1418
Apple iMac 21.5” SSD Upgrade (2013-2015) HDD To Solid State Drive (SATA) | Step By Step - YouTube
Apple iMac 2014 (Mid) Core i5 1.4Ghz 21.5-inch 14,4 SSD & macOS X Upgrades - ZD Laptop Service Centre
21.5" iMac Mid-2014 1TB SATA SSD Upgrade – UKSL MacLab
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