iMac (27-inch, Late 2013) and iMac (Retina 5K, 27-inch, Late 2014, Mid 2015 and Late 2015) DIMMs have a notch on the bottom right:.iMac (27-inch, Late 2012) and iMac (Retina 5K, 27-inch, 2017) DIMMs have a notch on the bottom left:.iMac (Retina 5K, 27-inch, 2019) DIMMs have a notch on the bottom, slightly to the left of centre:.If your DIMMs are mixed in capacity, minimise the capacity difference between Channel A (slots 1 and 2) and Channel B (slots 3 and 4) when possible. iMac (Retina 5K, 27-inch, 2020) DIMMs have a notch on the bottom, slightly to the left of centre.Find your model below for specific installation instructions and notch locations: When you insert a DIMM, make sure you align the notch on the DIMM with the DIMM slot.
IMAC MID 2007 4GB MEMORY UPGRADE APPLE STORE INSTALL
Replace or install a DIMM by setting it down into the slot and pressing firmly until you feel the DIMM click into the slot.When reinstalling DIMMs, the notch must be orientated correctly or the DIMM won't be inserted fully: Remove a DIMM by pulling the module straight up and out. Note the location of the notch on the bottom of the DIMM.After the memory cage has been released, pull the memory cage levers towards you, allowing access to each DIMM slot.Push the two levers outwards to release the memory cage: Locate the two levers on the right- and left-hand sides of the memory cage. A diagram on the underside of the compartment door shows the memory cage levers and the orientation of the DIMM.Remove the compartment door and set it aside: The memory compartment door will open as the button is pushed in.Open the memory compartment door by pressing the small grey button that's located just above the AC power port:.Hold the sides of the computer and slowly place the computer face down on the towel or cloth.Place a soft, clean towel or cloth on a desk or other flat surface to prevent the display from getting scratched.Disconnect the power cable and all other cables from your computer.If you've been using your iMac, wait 10 minutes after shutting it down to allow the internal components to cool.Īfter you've shut down your iMac and given it some time to cool down, follow these steps: The internal components of your iMac can get warm.
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