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Memory Upgrade for Apple iMac 266

Apple iMac 266 memory upgrade specification, iMac 266 maximum memory, memory speed, and memory upgrade options.

Upgrade memory on Apple iMac 266 upto a maximum of 512 MB
66MHz SDRAM SODIMMs and must be 1clock sync DRAM. Low profile modules need to be used in one of the two memory sockets. 256MB module requires iMAC firmware 1.2 or higher., with maximum 256MB per slot in 2 memory slots. The Apple iMac 266 takes the 66MHz SDRAM SODIMMs and must be 1clock sync DRAM. Low profile modules need to be used in one of the two memory sockets. 256MB module requires iMAC firmware 1.2 or higher. Memory Type.

Apple iMac 266 Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
32 MB (removable) 512 MB
66MHz SDRAM SODIMMs and must be 1clock sync DRAM. Low profile modules need to be used in one of the two memory sockets. 256MB module requires iMAC firmware 1.2 or higher.
2 sockets 266MHz PowerPC G3 5-flavors
 

Apple iMac 266 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 266 has 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.