Imac Essentials

Oct 14, 2015. Testing conducted by Apple in July 2020 using preproduction 3.6GHz 10-core Intel Core i9-based 27‑inch iMac systems with Radeon Pro 5700 XT graphics with 16GB of GDDR6, 128GB of RAM, and 8TB SSD, and shipping 3.6GHz 8-core Intel Core i9-based 27‑inch iMac systems with Radeon Pro Vega 48 graphics with 8GB HBM2, 64GB of RAM, and 2TB SSD. Set up your Mac. The first time you turn on your iMac, Setup Assistant walks you through the simple steps needed to start using your new iMac. If you want to transfer your data from another computer, see Transfer your data to your new iMac for details. Be sure to connect your iMac to Ethernet or Wi-Fi, turn on Bluetooth® wireless technology, get an Apple ID, then sign in to your device. Hawaiian Essentials Apple Music. Preview Editors’ Notes Hawaiian music can get pigeonholed as kitschy, but in fact it’s just the opposite: It's the stunning achievement of a culture that fought its way back from the brink of decimation. Native Hawaiian music is rooted in stately.

Connect multiple displays to your 27-inch iMac

You can connect up to two 4K displays or two 6K displays using the two Thunderbolt 3 ports on your iMac (Retina 5K, 27-inch, 2020).

Learn how to connect multiple displays

Clean the nano-texture glass on your 27-inch iMac

Follow these guidelines to clean the nano-texture glass display on your iMac (Retina 5K, 27-inch, 2020).

EssentialsFind out how to clean your display

Get to know the T2 Security Chip


The data on your iMac (Retina 5K, 27-inch, 2020) is encrypted by the T2 Security Chip.

Read about the T2 Security Chip

Add memory to your iMac

Find out the type of memory your iMac uses and how to install additional memory.

Imac Essentials Download

Install memory in your iMac

Use external displays with your iMac

Learn how to connect to HDMI, get help with external display issues, and more.

Get help with external displays

Learn about Mac accessories

Set up your keyboard, mouse, and trackpad and learn about other Mac accessories.

Get help with Mac accessories

Imac Essentials Pdf

Get AppleCare+ for Mac

Imac Essentials

With AppleCare+, you’re covered. Get accidental damage coverage and 24/7 priority access to Apple experts.


Have a question? Ask everyone.

The members of our Apple Support Community can help answer your question. Or, if someone’s already asked, you can search for the best answer.

Ask now

Tell us how we can help

Answer a few questions and we'll help you find a solution.

Imac Essentials Guide

Get support