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Memory Upgrade for Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz)
Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) memory upgrade specification, iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) maximum memory, memory speed, and memory upgrade options.
Upgrade memory on Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) upto a maximum of 32GB
DDR3L PC3L-14900 1866MHz Non-ECC SODIMM, with maximum 8GB per slot in 4 Slots memory slots. The Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) takes the DDR3L PC3L-14900 1866MHz Non-ECC SODIMM Memory Type.
| Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) Memory Upgrade Specification | ||||
|---|---|---|---|---|
| Standard Memory | Maximum Memory | Memory Expansion | CPU Type | Model/Chipset |
| 8GB | 32GB DDR3L PC3L-14900 1866MHz Non-ECC SODIMM |
4 Slots | Intel i5 (3.3GHz) | |
Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) Memory Upgrade options.
What are memory sockets or slots and how are these divided into bank?
Memory Sockets or Slots are the place where memory RAM modules are inserted in the motherboard. The Apple iMac 27-Inch i5 3.3GHz Retina 5K (1866MHz) has 4 Slots memory expansion slots. A memory bank is a group of memory expansion sockets, a bank must be completely filled with memory modules of the same size and type in order for the system to recognize and address the memory. i.e. :
2 sockets (2 banks of 1) This indicates that there are 2 memory slots. These are divided into 2 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.
3 sockets (3 banks of 1) This indicates that there are 3 memory slots. These are divided into 3 banks, and each bank consists of one memory slot. So you can add memory one piece at a time for the system to use.
4 sockets (2 banks of 2) This indicates that there are 4 memory slots. These are divided into 2 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.
8 sockets (4 banks of 2) This indicates that there are 8 memory slots. These are divided into 4 banks, and each bank consists of two memory slots. So you must add memory two pieces at a time (they must be the same size and type of memory) in order for the system to benefit from the upgrade.
12 sockets (3 banks of 4) This indicates that there are 12 memory slots. These are divided into 3 banks, and each bank consists of four memory slots. So you must add memory four pieces at a time (and they must be the same size and type of memory) in order for the system to benefit from the upgrade.
