You can purchase additional memory from apple. For best performance, all memory should be from the same vendor. For information about memory in other iMac models, see the Apple Support article Install memory in an iMac. Do not attempt to install memory while your iMac is plugged in. Place a soft, clean towel or cloth on your work surface.
Hold the sides of your iMac and lay it down so that the screen rests on the surface and the bottom faces you. Open the memory compartment door by pressing the small gray button located just above the AC power port. Step 3: Gently place the 5K iMac down on the towels, with the display face down so that the rear of the machine is easily accessible. Ensure that you have enough working space. Use a blunt object I generally use an ink pen with the pen portion hidden to press this button firmly, which will cause the memory slot cover to open.
If using pairs of mismatched memory sizes, things get a little strange. If installing mismatched pairs of memory, I find that installing a pair in slot 2 and slot 4, and another pair in slot 1 and slot 3 resulted in degraded performance.
Notice how the memory speed drops down to MHz in this scenario. Notice how the same memory configured in this arrangements results in the proper MHz speed rating. Be sure to watch the video walkthrough above for more details. Be sure to insert all of the new modules with the notch facing to the left. Push each module straight down firmly into the slot so that it snaps into place. Double check to make sure the modules are installed correctly, and that the levers are locked back into place.
Step 7: Reinstall the RAM door by simply pressing it into place. Step 8: Move your iMac back to your working area, connect all cables along with the power cable, and turn the machine back on.
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Store Information. Contact Information. Why shop with us? Enter your e-mail Address Submit. 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.
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