> Apple Memory > Apple iMac Computer Memory

Memory Upgrade for Apple iMac 3.33GHz Intel Core 2 Duo 27" Desktop

Apple iMac 3.33GHz Intel Core 2 Duo 27" Desktop memory upgrade specification, iMac 3.33GHz Intel Core 2 Duo 27" Desktop maximum memory, memory speed, and memory upgrade options.

Upgrade memory on Apple iMac 3.33GHz Intel Core 2 Duo 27" Desktop upto a maximum of 16GB
PC3-8500 DDR3 204-pin SODIMM, with maximum 4GB per slot in 4 Sockets (2 banks of 2) memory slots. The Apple iMac 3.33GHz Intel Core 2 Duo 27" Desktop takes the PC3-8500 DDR3 204-pin SODIMM Memory Type.

Apple iMac 3.33GHz Intel Core 2 Duo 27" Desktop Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
4GB (Removable) 16GB
PC3-8500 DDR3 204-pin SODIMM
4 Sockets (2 banks of 2)
 

Apple iMac 3.33GHz Intel Core 2 Duo 27" Desktop 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 3.33GHz Intel Core 2 Duo 27" Desktop has 4 Sockets (2 banks of 2) 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.