Hello Greenetunes,
It can be done. But for your iMac, a iMac (21.5-inch, Late 2013), they are correct in stating that you cannot upgrade the memory on it. That means that either an Apple Retail Store or an Apple Authorized Service provider would have to do the upgrade because of how it needs to be installed. If you look at the image below as well as in the article, you will see that your iMac does not have a compartment door like 27.5 inch models have for easy access.
Memory replacement on the iMac (21.5-inch, Late 2012) and iMac (21.5-inch, Late 2013) is not user-removable and must be done by an Apple Retail Store or Apple Authorized Service Provider.
Before you begin. To minimize the possibility of damage to the computer components due to static. Mac mini (Late 2012) and Mac mini server (Late 2012) computers have two internal memory slots. These slots accept standard PC3-12800 DDR3 204-pin SO-DIMMs (Small Outline DIMM) with the following specifications: PC3-12800 DDR3; Unbuffered; Non-parity; 204-pin module; 1600 MHz; Macs are picky about memory. Only use memory that says it will work. Unfortunately, the 'Late 2014' Mac mini models have soldered RAM that cannot be upgraded after the initial system purchase. By default, these models have 4 GB or 8 GB of 1600 MHz 'Low Power' LPDDR3.
The 2013 Mac Pro RAM tests were performed on the 3.5 GHz 6-core model, with two D500 GPUs, the standard 256GB SSD, and stock 16GB of RAM. For the tests, we performed a clean install of OS X 10.9.2 and disabled any unnecessary apps and services.
Regards,
-Norm G.
Nov 14, 2014 11:04 AM
Before you begin
To minimize the possibility of damage to the computer components due to static discharge, it's important to wear an antistatic wrist strap while you work with your computer's memory.
Choose your model
Mac mini models have different memory (RAM) installation requirements. Choose your Mac mini model for more information. If you need help determining which Mac mini you have, find out how to identify Mac mini models.
2020
Mac mini (M1, 2020)
2018
Mac mini (2018)
2014
Mac mini (Late 2014)
2012
Mac mini (Late 2012)
2011
Mac mini (Mid 2011)
2010
Mac mini (Mid 2010)
2009
Mac mini (Late 2009)
Mac mini (Early 2009)
2007
Mac mini (Mid 2007)
2006
Mac mini (Late 2006)
Mac mini (Early 2006)
2005
Mac mini (Original)
2020
Mac mini (M1, 2020) has memory that is integrated into the AppleM1chip and can't be upgraded. You can configure the memory in your Mac mini when you purchase it.
2018
Mac mini (2018) does not have user-installable RAM. You can configure the memory in your Mac mini (2018) when you purchase it. To upgrade the memory in your Mac mini (2018), go to an Apple Store or Apple Authorized Service Provider.
RAM availability varies by country and region.
2014
Mac mini (Late 2014) has memory that is integrated into the main logic board and can't be upgraded.
2012, 2011, 2010
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To remove and install memory in your Mac mini (Late 2012), Mac mini (Mid 2011), or Mac mini (Mid 2010), use the following steps.
Remove the bottom cover
- Turn off your Mac mini. From the Apple menu (), choose Shut Down.
- Disconnect the power cord and all other cables from your Mac mini.
- Lay your Mac mini upside down on a soft cloth or towel, and then rotate the bottom cover counterclockwise to the unlocked position.
- Press on the cover to pop up the opposite side, and then remove the cover.
Remove the original memory modules
- Gently spread the clips at the ends of the top memory module just enough to let the free edge pop up.
- Pull the module out of the slot.
- Repeat to remove the second, bottom module.
Install the new memory
- Carefully press the notched edge of the new memory module into the bottom slot while keeping the opposite edge slightly raised.
- Press down on the raised edge until the clips snap into place.
- Repeat to install the top memory module.
Replace the bottom cover
Don't connect the power cord or turn on your Mac mini until you replace the bottom cover. Never operate your Mac mini without the cover in place.
- Replace the bottom cover using the alignment dots to place it in the unlocked position.
- Rotate the cover clockwise to lock it in place.
- Reconnect the power cord and any other cables you disconnected.
After you install the memory, confirm that your Mac mini sees the new memory.
2009 and earlier
To remove or install memory in the following Mac mini models, go to an Apple Authorized Service Provider.
Confirm that your Mac sees the new memory
To check that the computer recognizes the new memory:
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- Start up your computer.
- When you see your desktop, choose Apple menu , then choose About This Mac.
- Confirm that the memory listed matches the memory you installed.
Ram For Mac Mini Late 2013 Specs
If the reported memory size isn't correct or if your Mac mini repeatedly plays three tones, it may be having trouble recognizing a memory module. If this happens, shut down your Mac mini, verify the module specifications against the requirements for your Mac mini model, and then repeat the memory installation instructions to make sure that the modules are installed correctly. If you still have issues, remove the memory and consult the support information that came with the memory, or contact the vendor who provided the memory.