Difficulty

Moderate

Steps

4

Time Required

                          5 minutes            

Sections

1

  • RAM
  • 4 steps

Flags

0

  • BackiMac Intel 27" EMC 2639

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Introduction

What you need

Step 1

              Open the RAM door               
  • 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.

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.

1024

Step 2

              Remove the RAM door               
  • Pull the RAM access door off the back of the iMac.

Pull the RAM access door off the back of the iMac.

Step 3

              Unlock the RAM tray               
  • 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.

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.

Step 4

              Remove the RAM               
  • 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.

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.

To reassemble your device, follow these instructions in reverse order.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

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                                                                                      66 other people completed this guide.                                             

Author

                                      with 3 other contributors 

                    Walter Galan                     

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Nicole Hamilton - Mar 31, 2016

Reply

I just purchased RAM and this guide was very accurate. Thank you.

Franz - May 12, 2016

Reply

Hi guys! I have to slot full with the basic amount of RAM (2 x 4 GB), can I install 2 x 8 GB in the other two slots available? I want to upgrade to 24 GB of RAM, but I don’t know if there are any problem putting together 4 GB modules with 8 GB ones. I remember an old story about possible issues… Thanks for your replies! :-)

mrmacfixit - Jun 17, 2017

You should be fine with pairs of equal capacity. 2 X 4 GB and 2 X 8 GB

Usually best to install in pairs of similar sizes

P

Jake Robb - Sep 28, 2016

Reply

I just upgraded mine from 16GB to 32GB. The only problem with this guide is that it says the difficulty is moderate. What could be easier? It took me less than five minutes, and most of that was unplugging/replugging stuff before and after the actual RAM upgrade.

I used a screwdriver to push on the little button that opens the door, as I didn’t have a spudger handy.

ventosa09 - Dec 14, 2017

Reply

Great job, thanks