Place a soft, clean towel or cloth on the desk or other flat surface to prevent scratching the display. Hold the sides of the computer and slowly lay the computer face-down on the towel or cloth. Open the memory compartment door by pressing the small grey button located just above the AC power port: The memory compartment door will open as the button is pushed in.
Remove the compartment door and set it aside: A diagram on the underside of the compartment door shows the memory cage levers and the orientation of the DIMM. Locate the two levers on the right and left sides of the memory cage. Push the two levers outward to release the memory cage: After the memory cage is released, pull the memory cage levers toward you, allowing access to each DIMM slot. Remove a DIMM by pulling the module straight up and out. Note the location of the notch on the bottom of the DIMM.
Find your model below for specific installation instructions and notch locations: iMac Retina 5K, inch, DIMMs have a notch on the bottom, slightly left of the middle. You don't need to press the compartment door release button when replacing the compartment door. Place the computer in its upright position. Reconnect the power cord and all other cables to the computer, then start up the computer. For these inch and Using a Philips screwdriver, remove the RAM access door in the bottom of your computer: Remove the access door and set it aside.
Untuck the tab in the memory compartment. After you insert it, press the DIMM up into the slot. There should be a slight click when you seat the memory correctly: Tuck the tabs above the memory DIMMs, and reinstall the memory access door: Place the computer in its upright position. For these inch and inch models Get memory specifications for the following iMac models, then learn how to install memory in them: iMac inch, Early iMac inch, Early iMac inch, Early iMac inch, Early iMac inch Mid iMac inch, Mid After your iMac cools down, follow these steps: Disconnect the power cord and all other cables from your computer.
Using a Philips screwdriver, remove the RAM access door in the bottom of the computer: Remove the access door and set it aside. There should be a slight click when you seat the memory correctly. Tuck the tabs above the memory DIMMs, and reinstall the memory access door: Place the computer in its upright position.
Installing memory in the bottom slot The internal components of your iMac can be warm. There should be a slight click when you seat the memory fully. Close the ejector clips: Reinstall the memory access door: Place the computer in its upright position. Replacing memory in the top slot After you shut down your iMac and give it time to cool, follow these steps: Disconnect the power cord and all other cables from your computer. Verify that the added memory is compatible with your iMac.
Visually inspect each DIMM to ensure they are correctly installed and fully seated. Each DIMM is keyed and can only be inserted in one direction. Confirm that the memory cage levers are locked into place. Make sure to let the memory initialization complete during startup.
This process can take 30 seconds or more and the display of your iMac remains dark until the process completes. If the iMac begins working correctly, reattach each peripheral one at a time to determine which one is preventing the iMac from operating correctly. Memory Upgrade advice. Your computer's memory capability: Maximum memory:. Standard memory:. Memory upgrade advice: Why does crucial recommend a higher maximum ram limit for my system than the system manufacturer?
Full article. If my crucial upgrade is not listed on a manufacturer's QVL, is it compatible? Why does crucial recommend a higher maximum ram limit for my system than the system manufacturer? All compatible upgrades. No results found for the selected filters. Previous Next. Your computer does not support an internal SSD?
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Get memory specifications for iMac (Retina 5K, inch, ), then learn how to install memory in this model. The inch iMac has four memory slots and comes with at least 8 GB of MHz DDR4 memory installed as two or more memory modules. Upgrade the memory of your inch iMac up to GB. OWC memory kits are % Apple compatible and backed by a lifetime OWC warranty.