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Memory Upgrade for Apple Macintosh Performa 250

Apple Macintosh Performa 250 memory upgrade specification, Macintosh Performa 250 maximum memory, memory speed, and memory upgrade options.

Upgrade memory on Apple Macintosh Performa 250 upto a maximum of 10 MB
SIMMs. Must be installed in pairs., with maximum per slot in 2 (1 bank of 2) memory slots. The Apple Macintosh Performa 250 takes the SIMMs. Must be installed in pairs. Memory Type.

Apple Macintosh Performa 250 Memory Upgrade Specification
Standard Memory Maximum Memory Memory Expansion CPU Type Model/Chipset
4 MB (non-removable) 10 MB
SIMMs. Must be installed in pairs.
2 sockets (1 bank of 2) 16MHz 68030 667MHz FSB
 

Apple Macintosh Performa 250 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 Performa 250 has 2 (1 bank 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.