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Memory Upgrade for Apple Macintosh Quadra 650

Apple Macintosh Quadra 650 memory upgrade specification, Macintosh Quadra 650 maximum memory, memory speed, and memory upgrade options.

Upgrade memory on Apple Macintosh Quadra 650 upto a maximum of 136 MB
Some systems come with video memory already at the 1MB maximum., with maximum per slot in 4 system memory memory slots. The Apple Macintosh Quadra 650 takes the Some systems come with video memory already at the 1MB maximum. Memory Type.

Apple Macintosh Quadra 650 Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
8 MB (non-removable) 136 MB
Some systems come with video memory already at the 1MB maximum.
4 sockets system memory 33MHz Motorola 68040 40MHz FSB
 

Apple Macintosh Quadra 650 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 Macintosh Quadra 650 has 4 system memory 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.