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iMac 21.5 late 2013 8gb of ram I stupidly purchased a iMac (21.5 inch late 2013) with only 8GB of RAM. I understand its virtually impossible to add ram internally, but does anybody know of a product I can use to increase my RAM without a tear down? Like installing more ram thru a usb or lighting port? Thank you!

I did this upgrade this last weekend for a customer. True it is a PITA. It was the first time into one of these glue job machines for me. The whole thing took me about 3 hours but I was being very careful. Only Apple makes the mSATA blade SSD for the machine and they wanted $950 for the 256 and $1350 for the 512K. The RAM upgrade ran just under $200. My question is WHY? Why do you think you need that much RAM and if you can use it, why don’t you have a MacPro? iMac Intel 21.5" EMC 2638 RAM Replacement

I have a late 2013 iMac with 16GB RAM and upgraded 2.9 i5 processor that had a Fusion Drive setup. I added a new 2TB SSD last month. I also added a 500GB blade SSD from a MacBook Pro that I had spare from my late 2013 MacBook Pro as my iMac version has a blade SSD slot on the logic board. To get to the RAM and the Blade drive I literally had to take the whole Mac apart and remove the logic board as both the RAM slots and the Blade type drive are not accessible without doing this. I used ifixit’s kit (not a plug) and it was a long job but can be done as long as you are careful when removing the display assembly and also when putting it back on. If you only want to upgrade the normal SATA HDD to a SSD it doesn’t take as long as you only have to take off the Display assembly. I have recently added a photo of the logic board I took out from my iMac below when I was taking it apart for anyone wanting to see what it looks like after removing. You can see the slots for the RAM and the heatsink for both the processor and GPU as well as the PCIE slot at the top of the picture. This was after I had just taken it out so you can see the dust at the top on the USB connections.

Hi Attempted to replace HDD with SSD but failed and broke the Glass panel bought new Display and want to upgrade my RAM also same model since am living in Iran its kinda expensive to buy from UAE Apple retail store. A friend said laptop RAM work on your iMac my question is: Can I buy SO-DIMM DDR3 1600 2x8 GB kit laptop RAM and replace it on my self ? I mean the exact model spec as Apple explained works on my iMac?

Can I upgrade my 2013 21.5” iMac i5 which currently has 16GB RAM and 1TB HDD to max it out to 32GB of RAM, 1TB SSD and i7?