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Use this guide to remove, replace, or upgrade the RAM in your iMac Intel 27" Retina 5K Display.

Before beginning any work on your iMac: Unplug the computer and press and hold the power button for ten seconds to discharge the power supply's capacitors.

  1. iMac 27" 2017 RAM Replacement, Open the RAM door: step 1, image 1 of 2 iMac 27" 2017 RAM Replacement, Open the RAM door: step 1, image 2 of 2
    • While holding the display steady, use the flat end of a spudger to press in on the RAM door release button, located just above the power port.

    • You may have to press fairly hard—keep at it until the bottom of the door pops out about 0.25" from the rear of the iMac.

  2. iMac 27" 2017 RAM Replacement, Remove the RAM door: step 2, image 1 of 3 iMac 27" 2017 RAM Replacement, Remove the RAM door: step 2, image 2 of 3 iMac 27" 2017 RAM Replacement, Remove the RAM door: step 2, image 3 of 3
    • Pull the RAM access door off the back of the iMac.

  3. iMac 27" 2017 RAM Replacement, Unlock the RAM tray: step 3, image 1 of 3 iMac 27" 2017 RAM Replacement, Unlock the RAM tray: step 3, image 2 of 3 iMac 27" 2017 RAM Replacement, Unlock the RAM tray: step 3, image 3 of 3
    • The RAM tray is locked into its upright position with two grey tabs.

    • Use your thumbs or index fingers to unlock the tray by pushing the tabs outward, away from the RAM.

    • Pull the tabs out and down, swinging the RAM tray down to a near-horizontal position.

  4. iMac 27" 2017 RAM Replacement, Remove the RAM: step 4, image 1 of 3 iMac 27" 2017 RAM Replacement, Remove the RAM: step 4, image 2 of 3 iMac 27" 2017 RAM Replacement, Remove the RAM: step 4, image 3 of 3
    • Remove a stick of RAM by grabbing it with two hands and pulling straight out of the RAM tray.

    • RAM modules are keyed so that they can only be installed in the proper orientation. Note where the shorter section of contacts is when removing, and reinstalling, your RAM.

    • To install a new module, insert the module into the desired slot in the tray and press it firmly in place. Push the tray back up until it locks in place.

    • Re-insert the RAM access door back into its place.

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To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.

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