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crwdns2944351:0crwdnd2944351:0iMac Intel 21.5" Retina 4K Display (2017) RAM and SATA Hard Drive Upgradecrwdnd2944351:0crwdne2944351:0

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Thing
RAM and SSD
Title
iMac Intel 21.5" Retina 4K Display (2017) RAM and SSD Replacement
Introduction
This guide details removing the logic board in a 2017 iMac 4K in order to remove or replace the RAM and the hard drive.
Some images in this guide were taken from the 2015 model, which has some small visual differences.
If you are replacing/upgrading your hard drive, be sure to [https://www.ifixit.com/Guide/Clone+an+Existing+Drive/16409|clone your existing hard drive|new_window=true] onto the replacement drive prior to performing this upgrade to keep your files and operating system in place.
This guide is marked "potentially dangerous" because it requires you to handle a power supply that contains large capacitors. Unplug the iMac and hold the power button down for at least 10 seconds to help discharge the capacitors. Handle the board by the edges and do not touch surface components.