HOW TO: Upgrade The CPU from an Intel Core i5 to an Intel Core i7 on a Mid-2011 21.5inch iMac - YouTube
Apple iMac (27-inch, September 2013) review: New processors and faster Wi-Fi for Apple's slim desktop - CNET
iMac not powering up after upgrade (RAM, SSD, CPU thermal transfer) | MacRumors Forums
iMac 2013 i7 CPU Upgrade | Shades Of Tech ⬡ - YouTube
新型iMac（Late 2013）をiFixitが分解：21.5インチはCPU直付け、両モデルともPCIe SSDスロット標準搭載 - こぼねみ
iMac A1419 (27-inch Retina 5K) Upgrade CPU Core i5 to Core i7 - YouTube
What Does It Take To Upgrade a 2012 iMac 21.5"?
Teardown of New 4K 21.5-inch iMac Reveals Removable RAM and Modular CPU - MacRumors
OWC Mac Pro (Late 2013) CPU upgrade for photographers - Camera Jabber
iMac Intel 21.5" EMC 2389 CPU Replacement - iFixit Repair Guide
late 2013 imac proccesor upgrade help | MacRumors Forums
iMac Intel 21.5" EMC 2308 CPU Replacement - iFixit Repair Guide
iMac Pro Teardown Highlights Modular RAM, CPU and SSD Along With Redesigned Internals - MacRumors
CPU Performance - 21.5-inch iMac (Late 2013) Review: Iris Pro Driving an Accurate Display
iMac 13,2 27" (27 inch) late 2012 - CPU,SSD,WiFi upgrade guide (Part 2) - YouTube
OWC Mac Pro (Late 2013) CPU upgrade for photographers - Camera Jabber
iMac Late 2013 21.5インチCPU、GPUカスタム nucad.net
iMac Repair & Upgrade, Same Day Services
How to Upgrade Mac Pro CPU/Processor (Tower, 2019): EveryMac.com
Apple's New 21.5 Inch iMac Has Upgradeable Parts — That's a Huge Deal
2013 iMac teardowns reveal SSD slots, soldered-in CPU in the 21.5” model | Ars Technica
Upgrade iMac Intel Core i3 CPU to Core i7 - iFixit Repair Guide
